FAQ - Frequently asked questions about ASRock X299M Extreme4
What is the maximum memory capacity of my ASRock X299M Extreme4?
The maximum memory size of the X299M Extreme4 is 128GB.
The phs memory® option for my ASRock X299M Extreme4 is faster than the existing RAM - Is this a problem?
If your system is limited to a slower memory speed, the "Fallback Speed Setting" in the SPD of the phs memory® RAM-Modules ensures the support of slower memory settings down to the given memory speed.
Will the legal warranty of the device expire, if I install a new memory module?
The legal warranty right of your X299M Extreme4 will not be affected if you install the memory yourself.