The importance of the XMP profile:
BIOS settings :
We can’t stress this enough, but your memory kit ‘s parameters are not automatically set once you’ve installed it. If this is the case for your processor, it’s not so for your memory kit, and you’ll have to go through the BIOS! This is what we had to do with our Maximus Z790 APEX Encore to get the BIOS to load the XMP profile.
You can then configure it manually, choosing the right frequency, timings and voltage for your kit. For ease of use, we advise you to activate XMP (Intel) or EXPO (AMD) mode in ” AI Overclock Tuner ” to set it up automatically.
Without this, your performance will be impacted in all areas, and you’ll end up with a kit that doesn’t exceed the CL40 frequency of 4800 MHz. Performance will then be extremely limited. So let’s activate our XMP profile directly in the BIOS. The XMP1 proposed is the 8000 MT/s profile. The other two XMP profiles, XMP2 and XMP Tweaked, are very slightly different in terms of subtimings and sometimes perform slightly better.
ROG BIOS, whether on APEX or Crosshair models, benefit from memory profiles. They are a good basis for overclocking your memory kit. We’ll start by using them in our overclocking tests. Our kit is now set up in the BIOS and will work with the manufacturer’s specifications.
As you can see from the screenshots above, once the XMP profile has been activated, the settings are automatically detected. The frequency is set to 8000 MT/s, timings 40-48-48-128 are activated and the voltage is increased to 1.35 volts.
