overRAMing - Blog speicher.de / PHS memory

Synology RackStation RS1626xs+ Upgrade: RAM Expansion up to 128GB (overRAMing)

Jürgen Hartmann — Mon, 03 Aug 2026 08:37:31 +0000

The RAM expansion with standard DDR4 RDIMM modules fails -
phs memory modules work reliably in testing and, with our
overRAMing project, even enable up to 128GB.

The Synology RackStation RS1626xs+ is a powerful NAS system for businesses that comes with a factory-installed 16GB memory module. Anyone looking to increase the system's performance - for example, for demanding virtual machines, large databases, or intensive multitasking applications - will need to upgrade the memory. This is where many users encounter a problem: Standard DDR4 RDIMM modules are not recognized by the system. The device will no longer boot with these modules installed.

We solved this issue with specially qualified and tested phs memory RAM modules and tested our modules in the RackStation RS1626xs+. Step by step, the memory was first expanded to up to 64GB (maximum RAM according to the manufacturer's specifications). As part of our overRAMing project, 100% compatibility with 128GB (4x 32GB) was also verified.

The Problem: Standard RDIMM Modules Do Not Work

The RS1626xs+ requires special Registered DIMM (RDIMM) modules for memory expansion. In practice, however, standard commercially available DDR4 RDIMM modules are not recognized by the NAS system despite having matching technical specifications on paper, preventing the system from booting successfully.

Our Solution: A Specially Qualified and Tested RAM Module

With our technical expertise in memory solutions, we have specially qualified a 16GB DDR4 RDIMM module from our phs memory brand for the Synology RackStation RS1626xs+. After successful compatibility testing directly in the device, the module was approved. The modules were reliably recognized by the system.

Another practical advantage: The factory-installed original module does not need to be removed when upgrading the memory. Our phs memory modules work seamlessly alongside the original module, allowing you to simply expand the factory-installed 16GB RAM.

Step-by-Step Memory Expansion (up to 64GB)

The RackStation RS1626xs+ features four memory slots on the motherboard: two white slots and two black slots. The order in which the modules are installed is crucial for successful operation.

Important safety notice: Memory modules may only be installed or replaced when the device is powered off and disconnected from the power supply.

Initial configuration: 16GB

The factory-installed 16GB module is installed in slot - CH A DIMM 1 white slot.

Step 1 - Expansion to 32GB

A second 16GB phs memory module is installed in slot CH B DIMM 1 (second, white slot). After switching on the device, the initialization runs automatically: The green LED flashes, the fans briefly speed up, and after around 40 seconds all LEDs remain permanently lit. A confirmation beep indicates a successful startup. The control panel now displays 32GB of memory.

Step 2 - Expansion to 48GB

For the next expansion step, choosing the correct slot is crucial: The third 16GB module must be installed in slot CH A DIMM 2 (first, black slot).

With the correct module configuration, the initialization runs smoothly, but this time takes around 130 seconds until the confirmation beep. The control panel then displays 48GB.

Step 3 - Expansion to 64GB (Manufacturer Specification)

The fourth and final 16GB RAM module is installed in the remaining free slot - CH B DIMM 2 (black), completing the manufacturer's specified maximum expansion to 64GB. After around 150 seconds, this process is also completed. The RackStation runs stably and uses the installed 64GB of memory (4x 16GB). The control panel confirms the maximum 64GB according to the datasheet.

Synology Rackstation RS1626xs+ - overRAMing

However, our test was not finished yet. Manufacturer specifications for maximum memory do not always show what is technically possible in reality. This is exactly what our overRAMing project is all about: Our memory experts independently test how much RAM a device can actually handle, regardless of official datasheets. A module only receives the overRAMing label if it has been proven to achieve a higher total capacity than specified by the device manufacturer and if the entire memory capacity can be reliably used by the system.
You can find more information about overRAMing here.

For the Synology RackStation RS1626xs+, Synology officially specifies a maximum of 64GB of memory in the datasheet. As part of our overRAMing project, we additionally tested the device with four 32GB Registered DDR4 modules from our phs memory brand.

The result: The system runs completely stable and reliably with a total of 128GB of memory - twice the manufacturer's specified capacity. The system control panel fully recognizes the installed 128GB. This successfully proves overRAMing for the RS1626xs+.

In addition, we tested all mixed configurations with the factory-installed 16GB module and one, two, or three additional 32GB phs memory modules. All combinations were recognized by the system without errors and operated reliably.

Mixing different module capacities is therefore not a problem with 32GB modules in the RS1626xs+.

In practice, this means: Anyone who wants to continue using the factory-installed 16GB RAM module can expand the system to 112GB of memory with a "triple kit" consisting of 3x 32GB phs memory modules. For the full expansion to 128GB, all four slots are populated with 32GB modules, replacing the original module.

The Synology RackStation RS1626xs+ therefore meets the criteria of our overRAMing project and has been added to the list of overRAMing devices.

Overview: Standard Expansion with 16GB Modules

Expansion level	Total memory	Newly populated slot
Factory configuration	16GB (1x 16GB)	CH A DIMM 1 (white)
Step 1	32GB (2x 16GB)	CH B DIMM 1 (white)
Step 2	48GB (3x 16GB)	CH A DIMM 2 (black)
Step 3	64GB (4x 16GB)	CH B DIMM 2 (black)

Overview: overRAMing Configurations with 32GB Modules

Configuration	Total memory	Status
Factory module 16GB + 1x 32GB	48GB	Successfully tested
Factory module 16GB + 2x 32GB	80GB	Successfully tested
Factory module 16GB + 3x 32GB	112GB	Successfully tested (overRAMing)
4x 32GB (factory module replaced)	128GB	Successfully tested (overRAMing maximum)

Installation Video

We have also documented the entire memory expansion process for you in an installation video. Step by step, it shows how to open the housing and populate all four memory slots in the correct order.

➜ Click here for the installation video: https://www.youtube.com/watch?v=wxKPoS6aeUQ

Also suitable for the sister models RS4826xs+ and RS6426xs+

The Synology RS1626xs+ is not the only device in the Synology XS-Plus series that benefits from our tested memory solutions: The new sister models Synology RackStation RS4826xs+ and Synology RackStation RS6426xs+ are also based on the same platform and can be expanded with our phs memory DDR4 RDIMM modules.

Important to know: Both models feature six instead of four memory slots and are officially specified by Synology with up to 96GB of memory (instead of 64GB for the RS1626xs+). The slot order and installation logic therefore differ from the instructions described here.

Synology RackStation RS1626xs+
Synology RackStation RS4826xs+
Synology RackStation RS6426xs+

Conclusion

The Synology RackStation RS1626xs+ can be expanded easily and reliably far beyond the manufacturer's specifications with the right RAM module: Instead of the official 64GB, up to 128GB of memory is possible thanks to our overRAMing project. With our specially qualified and successfully tested phs memory 16GB and 32GB DDR4 RDIMM modules, you can avoid compatibility issues, as standard commercially available DDR4 RDIMM modules do not work in this device.
When expanding the memory, simply make sure to follow the correct slot installation order to ensure smooth operation.

Upgrade RAM from 8 to 16GB and beyond. Is the performance improvement noticeable with more RAM?

Julian Olschok — Mon, 26 Jan 2026 13:03:17 +0000

Introduction: When the PC starts to lag

Do you know this? You’re working focused on an Excel spreadsheet, have a few browser tabs open, maybe Outlook is running in the background, and suddenly the computer becomes sluggish. The mouse pointer stutters, programs take a long time to load, and the fan gets louder.

In many cases, the cause is not the processor but the RAM. Systems with 8GB RAM quickly reach their limits when multitasking.

The good news is that upgrading RAM from 8 to 16GB is one of the most effective and affordable ways to give a slow PC more power.

In some cases, it may even be advisable to add even more RAM to achieve a significant performance boost. We’ll show you how to find out if your device’s RAM can be expanded, how much memory you need, and how much your system supports.

What happens when there is too little RAM?

Before we get into practice, a quick look behind the scenes. RAM (Random Access Memory) serves as your computer’s short-term memory. All currently used programs and data are temporarily stored here so the processor can access them quickly.

If the RAM is insufficient, Windows uses the so-called page file, an area on the hard drive that acts as emergency memory. The problem: even modern SSDs are many times slower than RAM. The result is noticeable delays when switching programs, longer loading times, and an overall sluggish experience.

Why is it worth upgrading RAM?

A larger RAM ensures smoother performance. Programs start faster, multitasking runs more smoothly, browser tabs remain more stable, and loading times are reduced. Games or resource-intensive software such as image or video editing, virtualization, or 3D simulations benefit significantly from a performance boost with more RAM.

Systems with only 8GB or less gain especially in performance when upgraded to 16GB or 32GB. If there is too little RAM, the system constantly relies on the slower hard drive or SSD. The result: stuttering, long loading times, and sluggish programs.

It is important to note that RAM does not automatically increase CPU or graphics performance. However, it removes bottlenecks and allows the existing hardware to reach its full potential.

The following table shows the minimum recommended RAM sizes for different use cases.

Use Case	Recommended RAM Size	Expected Performance Gain
Office / Everyday	8 -> 16GB	+20 - 40% in multitasking
Gaming	16 -> 32GB	Shorter load times, more stable FPS
Video / Image Editing	16 -> 64GB	Significantly faster rendering
Virtualization / 3D	32 -> 128GB	Massive performance boost

How can I find out if I can upgrade my RAM?

Many users are unsure and ask themselves: Can I even upgrade my RAM? Which modules are compatible? What should I pay attention to, and can I install the memory myself without damaging my device?

The first step is to find out which RAM is currently installed and how many slots are occupied.

Determine the RAM modules suitable for your system

Method 1: The RAM module online search on phs-memory.com

On phs-memory.com you will find a well-maintained database of compatible RAM modules. Currently, more than 400,000 compatible RAM modules for almost all manufacturers and devices are listed.

Simply enter the name of your device in the search field on the homepage, e.g., Dell Inspiron 7569.

In seconds, our system shows you the RAM modules found for your device.

Simply click on the desired RAM size.

Note: If items are displayed here, you can assume that you can replace or upgrade the RAM. All shown RAM modules are guaranteed to be compatible with your device.

On the following page, you will see all information about your device on the right.

RAM Installed: The memory configuration with which the device was shipped.

Maximum RAM: The maximum memory size your device can be upgraded to. In many cases, the maximum possible RAM is higher than the manufacturer specifies. These RAM modules are marked with the overRAMing Project logo.

Memory Slots: Shows the number of RAM slots available in the device.

Method 2: RAMONA – The RAM online analysis from phs-memory.com

Don’t know the model name of your device or unsure? No problem!

Our RAMONA analysis program scans your system and finds the suitable RAM in seconds. Simply download RAMONA, run it, and purchase the compatible memory.

Download RAMONA for free here
Start RAMONA-de.exe with a double-click
Confirm security warnings, if necessary click on “More info” and then “Run anyway”
Display the compatible RAM
If the search was unsuccessful, you can easily send your memory request to one of our RAM experts
You will then receive a message with a link to the compatible RAM modules for your system

Method 3: Manual check in the operating system

This method only tells you which RAM is installed in your system.

Windows operating system:

Open the Task Manager by pressing [Ctrl] + [Alt] + [Del] simultaneously.

Navigate to Performance and then to Memory.

Here you can see:

Top-right, the installed total memory
How much RAM is currently used and how much is still available
The speed at which the RAM is running
How many slots the system has and which of them are occupied
Which form factor (SODIMM or UDIMM) the system uses

macOS operating system:

Apple menu -> About This Mac -> More Info… -> Memory ->

What does RAM upgradeability depend on?

Whether you can upgrade your RAM primarily depends on the motherboard in combination with the installed CPU. Both determine:

Which RAM generation is supported (DDR3, DDR4, DDR5)
Which RAM speeds are possible
How the modules should be installed
The maximum total RAM capacity

Note: phs-memory.com has already done this work for you. All RAM modules displayed on phs-memory.com for a manufacturer’s device have been checked and approved by the RAM experts at phs-memory.com. This minimizes the risk of purchasing incompatible or incorrect modules.

How to correctly install RAM

Familiarize yourself with the tips and the straightforward installation of your newly purchased RAM at phs-memory.com.

Here you can find the steps for SO-DIMM.

Here you can find the steps for UDIMM.

When should you upgrade?

Upgrade now if:

You regularly use 8+ tabs + Office + chat simultaneously
You notice that your computer becomes extremely slow or stutters during multitasking
Your notebook is 3–5 years old but still otherwise fast
You plan to use the system for another 3–5 years
Your RAM is already over 70% utilized

Expected performance boost from more RAM: 20–35% noticeable improvement

FAQ: Frequently Asked Questions About Performance Boost with More RAM

Can I mix different RAM brands?

Basically, yes, as long as the DDR generation, voltage, and form factor match. However, for the best stability and dual-channel performance, identical modules are recommended. A kit with two sticks is the safest choice.

Can I mix DDR3 and DDR4 RAM?

No, that is not possible. The memory modules are incompatible. DDR4 RAM does not fit into a DDR3 slot. The connector pins, dimensions, and memory sockets are different. You must always upgrade using modules of the same memory type.

My laptop has only one RAM slot – what now?

In this case, you need to replace the existing module with a larger one.

Which is faster, DDR4 at 2400 MHz or 3200 MHz?

DDR4-3200 is faster. In memory-intensive applications, the speed of the RAM becomes noticeably more important.

What happens if RAM that is too fast is installed?

This is not a problem. The installed processor controls the operating speed of the RAM modules. For example, if a 3200 MHz module is installed, the CPU automatically reduces the memory clock to the speed supported by the CPU, e.g., 2666 MHz.

Can modules with different clock speeds be mixed?

In this case, the CPU will always adjust the RAM clock speed so that all modules run at the speed of the slowest module.

Can too much RAM be harmful?

No, having too much RAM has no negative effects. The unused RAM remains available in the system.

Are there devices in which the RAM is not replaceable?

Yes, many Apple MacBooks and modern ultrabooks (especially from 2020 onwards) have soldered RAM. In these devices, the memory is soldered onto the motherboard and cannot be upgraded or replaced. These devices do not have a memory slot.

Search for your model on phs-memory.com. If no result is shown for your device, it is very likely not upgradeable!

Does installing RAM void my laptop’s warranty?

No. The statutory warranty is not affected and remains valid.

Will my system automatically become faster after a RAM upgrade?

Not necessarily. A noticeable performance boost can be expected if the existing RAM is already being used at around 70% by the system or active programs. In this case, installing more RAM is recommended and leads to a significant increase in performance.

Do I need to reinstall Windows after a RAM upgrade?

No, not at all. Replacing or installing an additional RAM module does not require reinstalling the operating system. Windows automatically detects the new capacity and will use the added RAM.

How long does RAM last?

Under normal use, practically unlimited (20+ years without issues). RAM is one of the most reliable PC components. Failures or defective RAM modules are extremely rare.

Is it better to buy two 8 GB modules or one 16 GB module?

Two 8 GB modules are often better. Using two identical RAM modules activates dual-channel mode. This can provide an approximate 5–10% performance increase in communication between the CPU and RAM, and it reduces the load on the memory controller.

With current CPUs, when modules of different sizes are installed, the memory controller may use flex-channel mode instead of dual-channel mode. In this case, the speed gain compared to dual-channel mode is smaller and significantly reduced.
More about this in the blog article Dual-Channel / Flex-Channel.

Can I damage my device when installing a RAM module?

No, damage from installing RAM is unlikely if you follow these steps:

Disconnect the device from power
For notebooks, remove the battery or, if this is not possible, unplug the battery connector from the motherboard
Use compatible RAM for installation
Do not apply force

RAM modules are passive components and do not have a power supply. They are designed so that a defective or incorrect module cannot cause damage. If the computer does not boot after installation, simply reinstall the old module. The system will work again.

Do I need to delete data from the RAM?

No, RAM is a temporary hardware component. This means that as soon as the power is cut off, all information in the RAM is automatically erased.

Is the RAM automatically recognized after installation?

In most cases, the RAM is automatically recognized. If not, check that the module is properly seated in the slot and perform a BIOS update.

How can I tell if my system uses DDR3, DDR4, or DDR5?

Go to phs-memory.com and enter your model number in the search bar. All compatible memory modules will be listed, and the RAM generation (DDR3, DDR4, DDR5) will also be displayed.

Alternatively, you can check in your operating system as described here.

Conclusion: RAM Upgrade – One of the Most Worthwhile Investments for Your PC

If you regularly work with multiple programs at the same time, upgrading your RAM is one of the most worthwhile investments. You’ll experience noticeably smoother performance, shorter wait times, and more headroom for the future.

The performance boost from additional RAM may not sound as spectacular on paper as a new processor, but in everyday use, it is far more effective, environmentally friendly, and cost-efficient. The result: fewer stutters, faster program switching, and an overall more responsive PC. These are improvements you notice every day.

Take just a few minutes to check on phs-memory.com whether your device can be upgraded. After installing additional RAM, you will benefit from a more powerful device. In many cases, this allows you to avoid a new purchase and save money.

Why You Can Buy Safely at phs-memory.com

When you buy from phs-memory.com, you avoid:

Reading outdated manufacturer datasheets.
Incorrect information about maximum RAM capacity.
Searching for the right memory configurations.
Guessing which memory technology fits your device (DDR3, DDR4, DDR5).
Determining the correct RAM speed for your processor.
Relying on false forum posts or pseudo-expert guesses.

When purchasing RAM from phs-memory.com, you benefit from:

Verified approvals: Listed modules are tested and approved by our experts for your specific device.
No risk: If the RAM does not fit, you get your money back.
Help and support before and after purchase.
Personal support: If a search is unsuccessful, just send us a request. Our memory experts will assist you personally and promptly.

Ready for a performance boost with more RAM? Find the right RAM for your system in just a few clicks on phs-memory.com!

Performance Boost with a RAM Upgrade for Synology NAS

Julian Olschok — Fri, 19 Jan 2024 11:47:00 +0000

Work faster, increase response times, and improve multitasking!

Upgrading the memory in a NAS, such as the Synology DS923+, can be crucial to enhancing the system’s performance and efficiency. Memory serves as a temporary storage for running applications and services, and there are various scenarios where expanding capacity makes sense.

Why should you upgrade your Synology NAS’s RAM?

One of the main reasons for upgrading memory lies in the improved availability of resources for applications and services. Some of these services can be very demanding and tend to monopolize available memory for their own use. This results in the entire system slowing down, as other applications do not receive enough resources.

By increasing the memory, these resource bottlenecks can be resolved, and overall system performance can be improved.

How to determine if a memory upgrade is necessary?

In particular, when multiple users access the NAS simultaneously, increasing memory capacity can be advantageous. In situations where multiple users access the system and use various services at the same time, a larger memory size can speed up data processing and improve response times. This is especially relevant if the NAS serves as a central storage location for file sharing, media files, or other shared resources.

In the Resource Monitor, you can quickly check your NAS’s performance data. Open the Resource Monitor and keep it open while allowing normal operation on your Synology NAS. The monitor records the performance of CPU, memory, and network. During use, you will see the current RAM usage in percentage. If usage is high at over 80%, you should consider getting a RAM upgrade.

Acting proactively and preventing problems

Considering future requirements is another important aspect. With the introduction of new applications or an increase in the number of users, resource requirements also increase. A forward-thinking memory upgrade can ensure that the NAS meets future demands and provides optimal performance.

Practical Example: Neural Networks

A practical example that highlights the importance of sufficient memory is the use of neural networks.

Neural networks consist of a large number of parameters that are updated during the training process. The training process requires large and fast memory to store data temporarily and make it available for required calculations. With too little memory, the system may have to offload data to the hard drive, leading to significant performance losses. Adding additional memory can eliminate these bottlenecks and enable the system to work more efficiently.

A simple upgrade, such as from an 8 GB module to 2 x 32 GB of memory, can make a significant difference in the system’s performance. This not only allows for smoother operation but also increases efficiency in handling demanding tasks.

Which module is suitable for my Synology system?

It is important to check compatibility with the Synology NAS model before upgrading memory and to ensure that the selected memory modules meet technical requirements. Information on suitable upgrade options can be found by searching for your device in the top search bar. Overall, increasing memory can be a worthwhile investment to optimize the performance and future viability of your NAS system.

Purchase memory for your Synology system and upgrade it.

A RAM upgrade is not complicated and can be done quickly. Expanding memory is easy and possible for devices such as DS224+ / DS423+ / DS723+ / DS923+, as well as many others, without computer knowledge.

Even if the manufacturer specifies a maximum size for the memory modules, this can usually be exceeded. Search for your device and find all options available for your system.

Installing the Upgrade Memory Modules

Follow this video tutorial to install your purchased memory modules in your system.

Is there a RAM memory slot in the QNAP series TS-x64, TS-x64U, and TS-x64eU?

Jürgen Hartmann — Wed, 17 Jan 2024 14:54:00 +0000

Reports frequently appear in various forums that the QNAP TS-464-8GB and other drives from the QNAP series TS-x64, TS-x64U, and TS-x64eU are not upgradeable in the standard configuration of 8GB from the factory. The rumor persists that there are two different model variants.

Test Example - QNAP TS-464-8G

We investigated this case in detail using the QNAP TS-464-8G as an example. In May 2023, we demonstrated that the RAM is not soldered on the QNAP-TS-464-8G. Instead, the QNAP TS-464-8G has two expansion slots for memory modules, just like its sibling model TS-464-4GB with 4GB.

Our extensive testing showed that contrary to QNAP's statements, the QNAP TS-464-8G can be upgraded to 64GB (2x32GB). In our test, we equipped both memory slots with a 32GB phs memory RAM module each. The very first boot process took a little longer, but the device started up without any issues. In the system status of the NAS, the full 64GB are displayed. Even after installing Docker applications, where the RAM was nearly fully utilized, no problems were observed. This is thus referred to as overRAMing.

Based on numerous customer feedback, we can now confirm that not only the QNAP TS-464-8GB but also all other devices from the same model and series, which are listed in QNAP's technical documentation with 8GB of RAM from the factory and are allegedly not upgradeable, have two memory slots. Thus, an upgrade to 64GB with two 32GB memory expansions is also possible here.

Are there different model variants for the TS-x64, TS-x64U, and TS-x64eU series?

So far, we have successfully upgraded hundreds of devices from these model series, which were allegedly not equipped with RAM expansion slots and came with 8GB RAM from the factory. So far, there has been not a single customer report of the 8GB RAM on the motherboard being soldered or of no RAM slots being present. Our experience indicates that the rumors about different motherboard versions with the same model designations are unfounded. Instead, we can confirm that the same motherboard has always been installed in all models.

Which devices from the QNAP series TS-x64, TS-x64U, and TS-x64eU were tested and are expandable with RAM?

Modell	Anzahl RAM Slots	max. RAM lt. QNAP	max. RAM – Test overRAMing
TS-264-8G	2	8GB	64GB (2x32GB)
TS-364-4G	2	16GB	64GB (2x32GB)
TS-364-8G	2	8GB	64GB (2x32GB)
TS-464-4G	2	16GB	64GB (2x32GB)
TS-464-8G	2	8GB	64GB (2x32GB)
TS-464U-4G	2	16GB	64GB (2x32GB)
TS-464U-8G	2	8GB	64GB (2x32GB)
TS-464U-RP-4G	2	16GB	64GB (2x32GB)
TS-464U-RP-8G	2	8GB	64GB (2x32GB)
TS-464eU-4G	2	16GB	64GB (2x32GB)
TS-464eU-8G	2	8GB	64GB (2x32GB)
TS-664-4G	2	16GB	64GB (2x32GB)
TS-664-8G	2	8GB	64GB (2x32GB)
TS-864eU-RP-4G	2	16GB	64GB (2x32GB)
TS-864eU-RP-8G	2	8GB	64GB (2x32GB)
TS-1264U-RP-4G	2	16GB	64GB (2x32GB)
TS-1264U-RP-8G	2	8GB	64GB (2x32GB)

Installation of the upgrade memory modules

Follow this video tutorial to install your purchased memory modules into your system.

overRAMing® – Project

Jürgen Hartmann — Wed, 21 Oct 2020 06:24:00 +0000

overRAMing® - maximize your RAM

Many systems can be upgraded with more memory than was originally specified by the device manufacturer. For this reason, we launched the „overRAMing^® Project". Regardless of the technical documentation and data sheets provided by the manufacturers, our memory experts evaluate new overRAMing^® memory solutions every day. This ensures that you can use the maximum possible RAM available for your device according to the latest technology.

What is overRAMing®?

If you want to install the maximum possible memory for your device but find that the manufacturer’s specs differ from what Speicher.de lists, then your device may be another case for our overRAMing^® Project.

We often find that the manufacturers’ maximum memory specifications do not match the actual maximum. We believe, "Every device deserves the maximum RAM!"

With the ongoing miniaturization of DRAM production processes, higher memory densities are possible. The number of cells on the same surface area doubles approximately every five years, which doubles the capacity of memory that can be technically accommodated. Naturally, not every new RAM module is compatible with every system.

Therefore, our expert team of memory specialists tests numerous systems daily to determine the maximum technically possible RAM capacity. New memory solutions with higher capacities and performance levels are tested for functionality and stability within the system.

All memory modules that bear our overRAMing seal have been approved by us for the corresponding device and currently offer the maximum possible RAM capacity for that device.

Why doesn’t the manufacturer specify the maximum memory in the data sheet?

There is no real reason why a manufacturer would specify a device’s maximum memory with a smaller capacity than what is actually possible.

Our assumption is that manufacturers determine memory specifications based on the available technology at the time of development. Once set, this information may no longer be updated by manufacturers. For example, a laptop may be listed with a maximum of 4GB RAM, while today, 8GB or even 16GB is actually possible.

It could also be that manufacturers do not revise the product data sheet once it’s published, which may lead to confusion regarding the device’s maximum possible memory.

Why can devices be equipped with more memory than what is stated by the manufacturer?

Most of the time, this involves devices originally produced with only 4GB or 8GB of RAM because larger memory modules were either unavailable or prohibitively expensive at the time. Over time, new memory technologies emerge that allow for higher capacities.

For instance, Samsung has released 128GB DDR4 memory modules, enabling hundreds of servers and workstations to now be upgraded with far more RAM than what the manufacturer initially specified.

Why should you trust our recommendations? - Customers ask Speicher.de

All memory options listed by us are carefully selected for each device. To ensure that phs-memory® modules are compatible with the OEM memory, we adhere to each device's technical specifications. Our engineers and memory specialists possess deep expertise in memory technology and RAM modules. All technically feasible configurations are determined precisely and according to the latest state of technology. Benefit from our years of experience and know-how when upgrading your device.

Do you have further questions about overRAMing®?

As part of our overRAMing Project, we are always looking for test devices. For questions or feedback, feel free to contact us at info@speicher.de.

Memory 16GB (2x8GB) for QNAP TS-251+, TS-451+ and TS-453 Pro

Tasneem Farzat — Wed, 21 Oct 2020 05:55:00 +0000

On the manufacturer QNAP's website, the technical specifications for the QNAP TS-451+ state that the device can be upgraded to a maximum of 8GB (2x4GB).

We have reviewed the technical possibilities regarding the maximum possible memory and tested a 16GB (2x8GB) memory kit as part of our overRAMing Project.

In the successful memory test, we successfully installed 16GB (2x8GB) in the QNAP TS-451+. The entire 16GB of memory was immediately recognized by the device. Even in long-term testing, we encountered no issues. The QNAP drives TS-251+ and TS-453 Pro were also upgraded to 16GB and released for sale.

You can find the appropriate memory for QNAPs under the following links:

16GB Memory for QNAP TS-251+

16GB Memory for QNAP TS-451+

16GB Memory for QNAP TS-453 Pro

Do you own another QNAP drive?

Here you can find all QNAP drives

32GB DDR4 SO-DIMM 2,666MHz for gaming laptops and mobile workstations

Tasneem Farzat — Tue, 20 Oct 2020 13:03:00 +0000

In the notebook and industrial board segment, DDR4 SO-DIMM memory modules were previously only available up to a maximum of 16GB. The RAM with 32GB and 64GB memory capacities were previously only found in the server environment as RDIMM and LRDIMM memory.

Samsung is now the first manufacturer to mass-produce DDR4 32GB SO-DIMM RAM memory using the 10Nm manufacturing process. The DDR4 SO-DIMMs are each equipped with eight chips on the front and back. If, for example, two 32GB (total 64GB) memory modules are installed in the notebook, the two memory modules consume less than 4.6W in active mode and no more than 1.4W in idle mode. This means that power consumption can be reduced by a whopping 39% compared to conventional 16GB RAM memories from Samsung.

This reduction in power consumption has a particularly positive effect on heat development in the device itself, but also on the battery life of mobile devices.

The new Samsung 16Gbit DRAM memory is based on a 10Nm class process technology. The previous memory chips, each with 8GBit capacity, were manufactured by Samsung using an 18Nm process.

OverRAMing - Many notebooks can now be expanded to 32GB, 64GB or 128GB

Numerous new processors from Intel and AMD already support the new 32GB DDR4 SO-DIMM memory modules. However, very few manufacturers will change their data sheets and technical documentation with regard to RAM. The new Samsung 32GB SO-DIMM memory modules were released today for more than 6,000 devices in the speicher.de store.

You can find more information about our OverRAMing project here.

To test whether your device can also be expanded with 32 GB of memory

You can test whether your device can benefit from the advantages of the new technology in the Speicher.de store.

Simply enter the model name of your device in the search field on our homepage.

Here you will be shown immediately whether you can also expand your device for maximum performance.

A small selection of devices from well-known manufacturers that can be fitted with the new 32GB SO-DIMM memories, for example:

Manufacturer / Model	Max-memory old	Max-memory new
Apple iMac Core i5 27-Zoll (5K, Mid 2017)	64GB	32GB
Apple iMac Core i5 21.5-Zoll (4K, Mid 2017)	32GB	16GB
Dell Precision 7730	64GB	128GB
ASUS ROG Zephyrus GX501VI	24GB	40GB
Lenovo ThinkPad P72 (20MB)	32GB	64GB
Fujitsu CELSIUS H980	32GB	64GB
Acer Nitro 5 AN515-52	32GB	64GB
Acer Predator G9-593	64GB	128GB
Medion Akoya E6439 (MD61051)	16GB	32GB
QNAP TVS-951X	32GB	64GB
Panasonic Toughbook CF-54 Mk3	32GB	64GB

If you have any questions, please contact our storage hotline. We will be happy to help you.

32GB of RAM – ASRock J4105-ITX – OverRAMing Test

Tasneem Farzat — Tue, 20 Oct 2020 07:33:00 +0000

For all Gemini Lake processors, the current datasheets specify a maximum of only 8GB (2x4GB) of RAM. The Gemini Lake processor series includes the following Intel CPUs, among others:

Pentium Silver J5005 (4M Cache, up to 2.80 GHz)
Pentium Silver N5000 (4M Cache, up to 2.70 GHz)
Celeron J4105 (4M Cache, up to 2.50 GHz)
Celeron J4005 (4M Cache, up to 2.70 GHz)
Celeron N4100 (4M Cache, up to 2.40 GHz)

With the ASRock J4105-ITX motherboard featuring the Celeron J4105 processor, our overRAMing test showed that the specified maximum memory in the technical data is incorrect. Our endurance test demonstrated that 32GB (2x 16GB) is achievable.

Test scenario:

In our overRAMing test, we subjected the ASRock J4105-ITX Mini-ITX motherboard to rigorous endurance testing with various memory configurations.

The following memory configurations were tested:

12GB of RAM – (8GB + 4GB)
16GB of RAM – (8GB + 8GB)
24GB of RAM – (16GB + 8GB)
32GB of RAM – (16GB + 16GB)

The memory tests were conducted using MemTest86.

The full 32GB of RAM was recognized and could be fully utilized. Patience is needed during the first initialization of the 32GB, as the ASRock J4105 Mini-ITX takes around 35 seconds to start up the system.

The two 16GB memory modules were tested in the ASRock motherboard for over 6 hours, including in the "Hammer Test". All tests were conducted three times in a row. No issues, errors, or problems were found in any of the tested memory configurations during the endurance test.

It is unclear why manufacturers limit the maximum memory to only 8GB (2x 4GB) in the manuals and documentation. Our tests were successful with each memory configuration.

Where are the new processors used?

The new Gemini Lake processors are used in the following motherboards/mini-PCs:

ASRock Motherboard J4105 Mini-ITX
ASRock Motherboard J5005 Mini-ITX
Fujitsu Motherboard D3543-S1/-S2/-S3
Fujitsu Mini-STX Boards D3544-S1/-S2
Intel NUC KIT NUC7CJYH
Intel NUC KIT NUC7PJYH
MSI Cubi N 8GL (MS-B171)

The 8GB and 16GB memory modules have been successfully tested, approved, and sold several times.

A note from the manual!

While swapping memory modules, we noticed that the ASRock J4105-ITX motherboard BIOS does not always recognize the new memory. In this case, the motherboard does not boot, and the screen remains black.

This issue does not depend on the memory sizes used, as we could reproduce the problem even with 2GB and 4GB memory modules.

As described in the manual under 1.3 Jumper Settings, the solution is the CRLCMOS1 function.

Excerpt from the ASRock manual: CRLCMOS1 allows you to clear the data in the CMOS. The CMOS data includes system configuration information such as system password, date, time, and system setup parameters... Turn off your computer and unplug the power cord. You can then short the CLRCMOS1 solder points with a metal part, such as a paperclip, for 3 seconds...

Once the CMOS was cleared, every memory configuration could be installed, was immediately recognized, and the system booted on the first attempt.