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VRM Temps, are they bad?

post #1 of 8
Thread Starter 
Hey overclock.net,

I recently purchased a brand new Asus HD 7950 DCII V1 for around $230. It was one of those faulty cooler ones, which was why it was cheap. Nothing hard to fix with a couple of washers, and soon I was getting temps lower than 60 degrees celcius in 35 degree ambient.

The card I have is notorious for not having any decent VRM cooling, apparently there aren't any heatsinks or whatever for it, and its expected to be cooled by the two fans. I've got it overclocked to 1 GHZ with no voltage change (Can't believe a 7950 is that easy to overclock).

After playing BF3 for around twenty minutes, I checked my VRM temps using GPU-Z. VRM 1 was around 60 degrees celcius, and VRM 2 was around 65. Is this too high?

Thanks for reading, any help would be greatly appreciated.
post #2 of 8
your VRM temps are not too bad for this card. mine are roughly the same and i havernt fone any fixes to mine. from what hear VRM temps at 90*C + is where you should worry.
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Going to be chaep
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Wife's Rig
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post #3 of 8
Most MOSFETS in VRMs are rated to run at 105C, so 60C-65C isn't bad at all. IF you could get the numbers off the MOSFETs, I could find the datasheet to see their rating. But really, I think they are fine. :-)

Edit - If you are really worried, can't you just get some RAM heatsinks, and pop them on the MOSFETS? That would help dissipate the heat.
Edited by latelesley - 2/12/13 at 2:06am
post #4 of 8
Thread Starter 
It is one huge cooler, and though I wouldn't really mind trying it, I don't know where to put the heatsinks redface.gif

Thanks for the help.
post #5 of 8
Thread Starter 
post #6 of 8

Yup! They should do the job nicely, just check the dimensions to make sure they can fit in the space where the MOSFETs are.



You basically want heatsinks covering the chips within the red loop, these are the MOSFETs. You may find one heatsink will cover two or more chips, this is fine. The most important ones are the two leftmost ones, it looks like the right hand ones are the drivers for the MOSFETs, so if you can't cover those, don't worry about it.
post #7 of 8
Thread Starter 
Hey thanks! My local store had some, and I installed it and its working perfectly. VRM temps aren't going past 55 now.

+1 REP.
post #8 of 8
Quote:
Originally Posted by JJ1217 View Post

Hey thanks! My local store had some, and I installed it and its working perfectly. VRM temps aren't going past 55 now.
.

wow, nice.. are they the same ones you found on eBay? do you have a pic by chance as i really should do something with my card
Going to be chaep
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Coolermaster HAF 912 advanced (Asia version) 
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I5-3570K Gigabyte Z68X-UD3H-B3 Inno3D Ichill GTX660 8GB G.Skill RipjawsX 1600 
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Win 7 ultimate Samsung Syncmaster 932gwe+ OCZ ZT series 550W Coolermaster 410 
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1.67Ghz Atom stock 1GB DDR2 2 x 500GB Western Digital Cavier Blacks [RAID 1] 
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stock DSM3.2 [built on linux] stock stock 
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Going to be chaep
(16 items)
 
Wife's Rig
(12 items)
 
 
CPUMotherboardGraphicsRAM
i7-3770k Gigabyte GA-Z77X-UP5 TH MSI GTX460 G.Skill TridentX 2400 2 x 4GB 
Hard DriveHard DriveOptical DriveCooling
Plextor M5p 128GB 2 x WD 500GB Blues LG Prolimatech Megahalems Rev C 
CoolingOSMonitorPower
Arctic F12 CO PWM x 2 Push/Pull Windows 7 64 bit Ultimate LG IPS235V Corsair AX850 
Case
Coolermaster HAF 912 advanced (Asia version) 
CPUMotherboardGraphicsRAM
I5-3570K Gigabyte Z68X-UD3H-B3 Inno3D Ichill GTX660 8GB G.Skill RipjawsX 1600 
Hard DriveHard DriveOptical DriveCooling
Samsung 830 128GB WD black 500GB Liteon Coolermaster Hyper 212+ EVO 
OSMonitorPowerCase
Win 7 ultimate Samsung Syncmaster 932gwe+ OCZ ZT series 550W Coolermaster 410 
CPUMotherboardRAMHard Drive
1.67Ghz Atom stock 1GB DDR2 2 x 500GB Western Digital Cavier Blacks [RAID 1] 
CoolingOSPowerCase
stock DSM3.2 [built on linux] stock stock 
OtherOther
Synology DX510 Expansion unit 5 x 1TB WD Cavier Blacks in a RAID 6 
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