VRM temperature on an MSI 990fxa-gd65

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AnEwG

AnEwG

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Dec 31, 2013
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Hi.
I have recently replaced my stock AMD cooler with a TX3, after that I have noticed that a sensor reading was getting too high, usually +12* c above CPU temps at stock and as far as 27* C above CPU temps when the I overclocked the processor to 3.9 and stress tested it with Prime95, I found out that this is probably the VRM temp; since I touched its heatsink and it was quite hot to the touch. My question is: Does anyone know what are the maximum safe temperatures for the VRM on this board?
 
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lfkfkfkffs
Yeah motherboard water blocks are amazing. Do you have any options to mount a fan on the side of your case? I know a lot of those air coolers won't let you mount another fan most of the time on the side of the case
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lfkfkfkffs

lfkfkfkffs

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Do you know the temp on the vrm? for the most part they can get up to about 100 degrees without any issues but I normally get concerned if mine get over 90c. I haven't had that issue since I water blocked my motherboard.
 
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AnEwG

AnEwG

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I asked on the MSI forum and a moderator told me a similar thing, that as long as it remains below 100 degrees it is safe. It runs at 80 degrees under Prime95. Under normal load conditions it runs in the low to high 60's.
 
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lfkfkfkffs

lfkfkfkffs

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I wouldn't worry to much about it then, the best thing that you could do is try getting some air to flow across where the VRM is. I really wouldn't worry to much about the temp to be honest. Maybe like a month from now run prime 95 again and see if you see any change higher or lower. Just run the test again one month from now and see if you have any change. If you do still find yourself concerned with the temps you could get something like a water cooler, because right now the the fan on your heatsink is blowing the hot air from the processor over your VRM. The nice thing with liquid coolers is it doesn't have a fan right next the the vrm or anything else around the processor just the water block
 
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AnEwG

AnEwG

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Yes but instead there isn't any air blown at the VRM so it is also quite possible for it to overheat. If I understand correctly water block cooling is a different story since you can cool almost every chip on the motherboard, that I assume also including the MOSFETs.
 
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lfkfkfkffs

lfkfkfkffs

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Apr 2, 2014
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Yeah motherboard water blocks are amazing. Do you have any options to mount a fan on the side of your case? I know a lot of those air coolers won't let you mount another fan most of the time on the side of the case
 
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AnEwG

AnEwG

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I have two cases, an older one with the PSU at the top which may help remove some of the hot air from the VRM area but unfortunately it can only accommodates a 92 mm exhaust fan, while my newer CM Elite 311 has bad airflow all over and I usually leave the side panel open, moreover it only has 1 120 mm fan, beside the intake and exhaust fans, positioned at the graphics card level. I was thinking about attaching a few small fans (40 mm or something if I can find any) to the heat sink not sure if that will be possible though. I guess I'll just have to push my CPU a little more and see if the VRM temperatures remain within acceptable limit. Thank you for your help.
 
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