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MSI VRM Issues

post #1 of 14
Thread Starter 
I didn't realize this until yesterday, when I had CPU-Z up while IBT was running, but my MSI 790FX-GD70 has VDroop BAD.

My vCore is set to 1.395 in the BIOS, it usually reads as 1.385 in CPU-Z, however under load it will get all the way down to 1.368.. Is that normal or are my VRM's getting ready to fry on me?

If they are, would this be a good replacement?
http://www.newegg.com/Product/Produc...Tpk=990x%20ud3

On the bright side though, that means that my cpu can get 4GHz stable at 1.368
post #2 of 14
Not sure about the vrm stuff, but that is a solid replacement board.
    
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post #3 of 14
Thats a perfect board but if you want you can go for a sabertooth 990fx from Asus. They are really good but the board your looking at is prime.

or you can grab some VRM heatsinks which is what I have and try them out. What temp were the VRMS running at?

http://www.newegg.com/Product/Produc...82E16835708011
Edited by Sauce Boss - 8/5/11 at 3:31pm
5WAG
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post #4 of 14
I've read before here that the vdroop problems with you board are due to only having a 4pin cpu power instead of an 8pin one, at least that happened with 6-core PHIIs because the VRMs weren't capable of giving the cpu enough power.
post #5 of 14
Thread Starter 
Awesome
I'm looking to go for bulldozer eventually anyway

As far as VRM temperature, I have no Idea how hot they're running, but Motherboard reads as 38C in hardware monitor usually

Quote:
Originally Posted by xGTx View Post
I've read before here that the vdroop problems with you board are due to only having a 4pin cpu power instead of an 8pin one, at least that happened with 6-core PHIIs because the VRMs weren't capable of giving the cpu enough power.
I'm using 8 pin power
post #6 of 14
Quote:
Originally Posted by Hobybobag View Post
Awesome
I'm looking to go for bulldozer eventually anyway

As far as VRM temperature, I have no Idea how hot they're running, but Motherboard reads as 38C in hardware monitor usually


I'm using 8 pin power

Good stuff that board is good for overclocking. Its a whole lot safer just to get a new board than to risk all of the tendencies of VRM failure.
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post #7 of 14
Thread Starter 
Yeah, that's pretty much what I figured... It sucks though, this board is fantastic for everything else :\\
post #8 of 14
Quote:
Originally Posted by Hobybobag View Post
Yeah, that's pretty much what I figured... It sucks though, this board is fantastic for everything else :\\
I know right? I agree. I love the bios on it
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[AMD] Phenom II X4 965 BE @ 3.5ghz [MSI] 870S-G46 ATX w/ VRM heatsinks (sabertooth) [MSI] Radeon HD 5770 1GB (evga gtx560ti) [G.Skill] Ripjaws 8GB (2 x 4GB) DDR3-1333 Mem 
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5WAG
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post #9 of 14
I don't think vDroop may necessarily mean your VRMs are about to fry, but it may be a result of instability. The 790FX-GD70 lower phase count may cause more unstable than usual voltage. They're not usually known for frying with x4s (well they were I believe but using voltages above 1.5V), mostly x6 had the problem.
post #10 of 14
Thread Starter 
Is there anything I can do about that? Or should I just keep in mind that my voltage wont be anywhere near what I set it to
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