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How would you observe VRM/VRAM temps? - Page 2

post #11 of 17
Quote:
Originally Posted by nvidiaftw12 View Post

Hmm. Did not know those were all die temps. But, why is there so much variation in die temps?

Different locations on the die, sometimes a bad seat means higher delta between temps.
By mem ic I mean controller.


500
Edited by grunion - 3/24/12 at 9:03pm
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post #12 of 17
Thread Starter 
Quote:
Originally Posted by grunion View Post

Your card isn't down clocking, hmm..
Should be at 250/150/.89v when idle.
I wouldn't worry about the memory, blown down coolers work well for cooling the memory.
Temps 2 and 3 are on die, I'm talking about the vreg temps.
But yeah I don't like to see >80°c on the die temps.

Okay you'll have to do me one more.

So if I'm looking at VRM/VRAM temps, should I be looking at GPU2 temp or VREG temp?

I'm going with a CLC, so no fan over it cooling it...
Hence my freakout. thumb.gif
post #13 of 17
Quote:
Originally Posted by rawfuls View Post

Okay you'll have to do me one more.
So if I'm looking at VRM/VRAM temps, should I be looking at GPU2 temp or VREG temp?
I'm going with a CLC, so no fan over it cooling it...
Hence my freakout. thumb.gif

Oh I misunderstood, thought a Gelid cooler.
But now I see Kuhler, you're flirting with disaster passively cooling the memory and vregs.
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post #14 of 17
Thread Starter 
Quote:
Originally Posted by grunion View Post

Oh I misunderstood, thought a Gelid cooler.
But now I see Kuhler, you're flirting with disaster passively cooling the memory and vregs.

Oh boy, looks like I'll have to ghetto-mod up a fan...
post #15 of 17
Look at the image I posted, barely overvolted, 100% fan speed >100°c.
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post #16 of 17
Quote:
Originally Posted by grunion View Post

Look at the image I posted, barely overvolted, 100% fan speed >100°c.

I get much better temps in furmark, @ 1.212 volts 930 core and 80% fan speed. Dunno bout vreg, but my core doesn't get over 65C. And it's drawing 145 amps. Makes me wonder 'bout that tf3 sometimes.
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post #17 of 17
I personally would not consider 120C remotely safe on a reference 6950 that's been OCed and overvolted.

The more power you pull through them the colder they need to be for the same kind of longevity (the amount of current they can deliver is inversely proportional to their temperature; and 80C VRM can usually handle almost double the power as one at 120C). On my reference 6950s, my personal limit is 80C. I usually see 70-75C in extended runs of FurMark and OCCT with a custom fan profile on my unlocke dcards running at 950/1450 with 1.205v. If I went further, I'd want my VRMs colder.

120C is probably fine for stock, but i have killed the VRMs on multiple OCed cards (two 5850s and a GTX 480 most recently) well below this temp.
Quote:
Originally Posted by grunion View Post

Look at the image I posted, barely overvolted, 100% fan speed >100°c.

The Twinfrozr II uses a custom PCB and custom VRM that is no doubt rated to deliver more current than the reference design. Temps that are well within margins for it may be very dangerous for a reference card with a similar OC.
Quote:
Originally Posted by nvidiaftw12 View Post

I get much better temps in furmark, @ 1.212 volts 930 core and 80% fan speed. Dunno bout vreg, but my core doesn't get over 65C. And it's drawing 145 amps. Makes me wonder 'bout that tf3 sometimes.

The TF design is less suited to VRM cooling, but since MSI must have known this, I'm assuming they took it into account when designing the card.

A screen shot I just took of my card after running just under 3 hours of FurMark in ~75F ambients (fan profile is 40% below 60C, 62% below 75C, and 82% at 75C+):

375
Edited by Blameless - 3/25/12 at 7:58am
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