Hello. I am currently running Corsair Dominator DDR4 RAM 16-18-18-36 / 3200mhz / 1.35v and an Asus Maximus IX Hero board with an i7 7700k cpu. Whenever I enable XMP and manually enter timings, once i get to my desktop (just at idle; no load) my fans will ramp up high then slow down to silent and cycle that way every 6-10 seconds. During this time the cpu temp will spike by about 25 degrees and then instantly drop back down. Without XMP, my cpu temps at idle are almost completely constant (~37 degrees). I went back into bios to see if maybe it had anything to do with Q-Fan Control and my bios would completely freeze after 5 seconds. It would not unfreeze, and once i reset i would have the same issue over and over. I went back and quickly disabled XMP (i have had it disabled generally) and everything acts normal again (fans normal, bios doesnt freeze). I get intermittent freezing in games (some games once an hour, some multiple times an hour) that lasts for 3-5 seconds on some games (Guild Wars 2) and 10+ on others (H1Z1). I read somewhere it may be RAM timings thus my reason to try and adjust. Once I go into bios (when I have timings set to Auto and Freq to 3200mhz *i should note my bios Auto sets frequency to 2133mhz and i manually change it to 3200) i notice my CAS is 17 and voltage is 1.44mhz. Is there a reason my CAS is 17 instead of 16? And why is my voltage higher? I dont see a way to change voltage without enabling XMP (which is chalk full of problems when i enable) and I dont want to edit the CAS with a higher voltage since I'm not really knowledgeable about these things. Any help is appreciated.
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XMP and RAM Timing Problems
- Thread starter VestaL
- Start date
First things first: Has this memory ever been stable on your motherboard?
Second, are you on the latest BIOS version of your board? Upgrading can fix a ton of memory issues.
Whether its been stable before, or its brand new, you can download memtest from passmark.com, rip to a bootable USB (the install package does this for you), boot from the USB thumb drive and let memtest run for a couple hours to see if any errors are thrown.
At the end of the day, some RAM just doesn't play nice with some motherboards. Just is what it is. Sometimes the easy fix is to enable XMP and then manually back the speed off by one step (like to 3000) and that can stabilize everything. If so, you can then play with pulling timings back by one (15-17-17-25) while running at 3000.
Second, are you on the latest BIOS version of your board? Upgrading can fix a ton of memory issues.
Whether its been stable before, or its brand new, you can download memtest from passmark.com, rip to a bootable USB (the install package does this for you), boot from the USB thumb drive and let memtest run for a couple hours to see if any errors are thrown.
At the end of the day, some RAM just doesn't play nice with some motherboards. Just is what it is. Sometimes the easy fix is to enable XMP and then manually back the speed off by one step (like to 3000) and that can stabilize everything. If so, you can then play with pulling timings back by one (15-17-17-25) while running at 3000.
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