Question Need advice about RAM Compatibility

Sinafey

Distinguished
Apr 12, 2012
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Hey there, I recently RMA'd my motherboard after using incompatible RAM for 3 years. I noticed I wasn't able to use the XMP profile with the RAM and eventually kind of forgot about it until my motherboard starting posting with errors and unable to boot windows. I contacted support and got the motherboard replaced, now I've been searching for RAM and I just purchased some from newegg.

I am using the Asus Maximus XI Hero motherboard with an i9-9900K processor. I ordered the G.Skill F4-4000C17-32GTZRB RAM. I looked at the Asus QVL list here https://dlcdnets.asus.com/pub/ASUS/mb/LGA1151/ROG_MAXIMUS_XI_HERO/ROG_MAXIMUS_XI_HERO_SERIES_Memory_QVL_0225.pdf

I noticed the RAM I purchased was not on the QVL. Would this be due to not testing any newer RAM? The XI Hero is on the G.Skill QVL list here https://www.gskill.com/qvl/165/166/1590134885/F4-4000C17Q-32GTZRB-Qvl

I went ahead and ordered the RAM so that I didn't miss the shipping window.. but I'm now wondering if I made a mistake. Any advice from PC Builders that are more experienced than I am would be greatly appreciated.
 

Bob.B

Prominent
Feb 8, 2021
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Hey there, I recently RMA'd my motherboard after using incompatible RAM for 3 years. I noticed I wasn't able to use the XMP profile with the RAM and eventually kind of forgot about it until my motherboard starting posting with errors and unable to boot windows. I contacted support and got the motherboard replaced, now I've been searching for RAM and I just purchased some from newegg.

I am using the Asus Maximus XI Hero motherboard with an i9-9900K processor. I ordered the G.Skill F4-4000C17-32GTZRB RAM. I looked at the Asus QVL list here https://dlcdnets.asus.com/pub/ASUS/mb/LGA1151/ROG_MAXIMUS_XI_HERO/ROG_MAXIMUS_XI_HERO_SERIES_Memory_QVL_0225.pdf

I noticed the RAM I purchased was not on the QVL. Would this be due to not testing any newer RAM? The XI Hero is on the G.Skill QVL list here https://www.gskill.com/qvl/165/166/1590134885/F4-4000C17Q-32GTZRB-Qvl

I went ahead and ordered the RAM so that I didn't miss the shipping window.. but I'm now wondering if I made a mistake. Any advice from PC Builders that are more experienced than I am would be greatly appreciated.
Flip a coin.
The mobo maker can not test every type of ram on the market.
Newegg has a good return policy if it does not work.
 

zhiyeliu

Contributing Writer
Editor
Jan 24, 2019
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Your processor's IMC will determine whether you can run DDR4-4000. Just know that DDR4-4000 will not be plug-n-play on all processors.
 

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