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Noticed something weird about temps..

post #1 of 7
Thread Starter 
Ok, so I was playing around with my cards yesterday, ran 3DMark 11 and Kombustor for a total of like 2 hours and they max'd out at 47 degrees (Celsius) above ambient (Then I said, ok, maybe it's just another reason to build a custom loop and get rid of the heatsinks)..
But an hour later I started playing games (MOH, BF3, etc.) and they max'd up at around 20 degrees above ambient.
I still don't know why I get temps that are really close to my idle temps when I game, yet 20~30 degrees more when I run tests and benches, I mean, I know that burnout tests make the card warm up a lot, but I didn't expect 27C more! o.0
So basically, I think I could push it more when I game, but go back to my current profile when I test, or that'll just be a dumb move?

Oh and another thing, I'm currently running my cards @1200/1700Mhz on air, how much more do you guys think I could push them with a loop? biggrin.gif
Damn I love those 7970s.
post #2 of 7
Hey mate that's pretty normal thumb.gif. My 580's run at around 60 to 70 in-game, but go as high as 90 in Kombustor (now that I don't have liquid cooling anymore). Kombustor and 3DMark11 are pretty tough on my cards. Some games sure, they run hotter but there's always at least a 10C difference.
As for your second question I'm not sure. I haven't had experience with AMD cards all that much.
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Odin
(20 items)
 
Tyr
(15 items)
 
 
CPUMotherboardGraphicsGraphics
Intel i7 - 3930k sabertooth x79 GTX 580 GTX 580 
RAMHard DriveHard DriveHard Drive
8GHz Patriot-S kit (2 x 4GHz) OCZ Vector SSD 2TB Seagate 2TB Seagate 
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500 GB external Seagate Antec 620  2 x Antec Case Fans, 3 x Noctua NF-F12 Fans, 3 ... Windows 7 
MonitorKeyboardPowerCase
LG Flatron W2753VC TT eSports  Antec HGC 900 Antec P280-W 
MouseMouse PadAudioAudio
CM Storm Sentinel Zero-G Shattered Horizon Edition Star Craft 2 - Heart of the Swarm Edition Logitech Z906 5.1 Surround sound  Steelseries Gaming Headphones 
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post #3 of 7
Yeah, normal temp difference really.

As for question #2, it is as always, chip by chip, but it might be able to be estimated with a bit more detail than "Between 0 and 200MHz" extra core OC headroom.

What makes you hit the limit?
Artifacts?
Display driver crash?
BSOD/Freeze?
Throttling?

I have a similar card [1200/1800MHz] air cooled for gaming, [1250/1900MHz benches] and will hopefully have it under water by thursday. I'll of course get to OCing it right away. Hoping for 1300 gaming tongue.gif.

BTW, mine hits the overclock limit with temps right now. Once its over X temp @ Y Core clock, it artifacts and shortly after, display driver crashes. If yours is like this, then maybe my results predict yours.
post #4 of 7
Thread Starter 
I'm yet to hit it's limit, no crashes or artifacts at all @1200/1700, I'm just not sure whether I want it to run hotter then high-70s..
Gaming wise I think I could pull it much higher, and knowing myself I'll probably try, it's the benches that make worry (so much god-damn noise and high temps..)
Thank you both for commenting biggrin.gif
post #5 of 7
lol I know what you mean. It sounds like your card has a lot of headroom with better cooling with that info. My card wont stay 100% stable over 60c @ 1200MHz.
post #6 of 7
Thread Starter 
Well.. I tried playing with it a little, it's stable enough for Kombustor at 1275/1775, but when I try playing games the drivers crash.
Any solution for that?
post #7 of 7
Well Kombustor is probably throttling the GPU core, preventing it from truly testing stability at that speed, unless your cards bios has a very high default max power draw.

Even if it isnt throttling, Kombustor and other GPU stress programs are more for temperature testing and not stability testing. Bitcoin miners are also an odd ball, as voltages can be much lower for the same core clock while retaining stability. Games are the opposite unfortunately tongue.gif

Core clock is too high/voltage too low. Memory wont cause driver crashes AFAIK.
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