GPU temperature monitor for Windows

macdudesir

macrumors 6502
Original poster
Jan 16, 2011
357
76
Blacksburg, VA
I installed Windows 7 on my 27" iMac to game on it and i want to try overclocking my gfx card but I wont without a GPU temp monitor for obvious reasons...I was wondering if any of you found a GPU temp monitor for your iMac that works? i have the ATI 6770M gfx card if that makes any difference...

Thanks in advance!
 

iSayuSay

macrumors 68040
Feb 6, 2011
3,253
385
Sorry for hijack, but out of curiousity does iMac's GPU has its own fan? I have smcfancontrol on my iMac and it only detects CPU, HDD, and ODD fan. Where is GPU fan?

Does the GPU inside has passive cooling? Does it cooled only by giant heatsink on upper right of the iMac?

If indeed GPU has no fan, what's the point of controlling fan speed anyway? It's going to be heated anyway since it has no fan?
 

Eidorian

macrumors Penryn
Mar 23, 2005
29,085
288
Indianapolis
Sorry for hijack, but out of curiousity does iMac's GPU has its own fan? I have smcfancontrol on my iMac and it only detects CPU, HDD, and ODD fan. Where is GPU fan?

Does the GPU inside has passive cooling? Does it cooled only by giant heatsink on upper right of the iMac?

If indeed GPU has no fan, what's the point of controlling fan speed anyway?
The optical drive fan is what cools the heatsink for the GPU. The optical drive is barely going to make any heat anyways.
 

macdudesir

macrumors 6502
Original poster
Jan 16, 2011
357
76
Blacksburg, VA
Thanks

Have you tried GPU-Z or Open Hardware Monitor?
Hey, thanks for that suggestion! I have CPU-Z i guess it never occurred to me to try GPU-Z I assume that its temp sensor is right but its giving me a 173RPM fan speed which is obviously wrong but fan speed isnt too important i dont guess seeing as i can use smc fancontrol to control them before i boot in to windows....anyways thanks again!
 

iSayuSay

macrumors 68040
Feb 6, 2011
3,253
385
The optical drive fan is what cools the heatsink for the GPU. The optical drive is barely going to make any heat anyways.
Hmm ... okay, so actually GPU has no dedicated fan on its board to cool it off? GPU's heat spread out by heatsink, and the heatsink is cooled down by a fan so-called ODD fan on smcfancontrol?

If that's right, well ironically the ODD fan is odd :D because you said it, Superdrive barely makes any heat unless you burn 10 DVDs in a row
 
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