Good Tmax for 5870 Mobility?

What's a good maximum temperature under full load for a 5870 Mobility?

I know for older cards it was 80C, but I've read that the newer cards can work well at higher temps, so I wanted to find out if the comfortable upper limit at full load is still considered 80C or if the goal post has been moved.

 

For such a high end card I'd say about 95-100?

 

Asus and Clevo have proven, that the 5870M can be kept below 90C. What the 5870 hits will come down to how well the MSI's cooling is built.

That said, it wouldn't at all shock me, to see the MSI reach higher temps than an Asus or Clevo.

 

Sounds good. At ~8% overclock (Stock: 700/1000, current OC is 755/1075) I'm only running at 82C, so I should have some more room to push it further.

 

At 835/1080 mine runs 76C under full load with back cover off and NC2000

At 21 Ambient it goes down to about 70-71

 

Mine hasn't gone above 82C, with 840/1025 clocks. Granted, I'm hardware modded, the weather is in the 60F range, and I use an NC2000, but still.

But that's my maximum temperature, ever, for a game. Depending on the game and how long I've played it, I'm anywhere from 60C-70C.

MSI engineered the cooling pretty well on the GX660(R). Not sure about the 740.

 

I've got it running at 760/1085 @ 81C.

I didn't realize the core could be pushed up into the 800's. At 760/1085 I started to see some texture drop outs on Furmark. I wonder if that was the memory more than the core...

 

Maybe the memory. I literally cannot go above 1050 with my memory without something blowing up. Try easing up on the memory and raising the core.

 

ATI claims the chip is fine up to 110'ish. If you're hitting the mid 90's on anything but SC2, Crysis, Metro 2033 or Furmark I would say you are on the warm side. I think about average is mid 80's.

 

Yeah your mem might be a bit high.

It's stupid because I ran furmark for 5 minutes at 840/1100 and it's stable. Then I run Dirt2 and it crashes after a few min in the first race.

As soon as dirt2 stops crashing some other random games crash.

I keep compromising so now I'm at 835/1080 with no crashes, knock on wood.

 

Got it to 860\1095, running stable at 85C. It crapped out at 860\1100.

3DMark06 was 13101, Vantage GPU was 9333, P8820 overall. Not bad.

I'll have to test it with a few games and see how it goes, although I always find the 3DMark tests are far more strenuous than any of the games I have.

 

that will not run stable.

3dmark doesn't test temps/stability at all. I've never crashed once in 3dmark but it always does in more demanding games.

Try Dirt2, that always detects what's stable or and what's not.

Just tried 860/1120. temps maxed out at 72C and didn't crash. But I bet if I do any gaming it'll crash straight away.

 

Was just playing Dragon Age: Awakening and it seems to be just fine.

 

Yep, crashed on second race in Dirt 2.

Honestly you're not going to see much improvement after 840/1080, for example my 835/1080 GPU score in Vantage is 9143.

Does Dragon Age use the GPU a lot? I find games with games like CoD4 I can get a crazy overclock and it won't crash but that's because it's capped at 91FPS and therefore the GPU usage drops.

 

Running DA:A full screen/settings, GPU usage was consistently between 95-99%.

 

Clocked at 800/1000 Running GTAEFLC Max out at 1080 (High, Very High)
GPU load avg 65-75 Peak 100
Temp avg 77, peak 85 (5 sec)

1Hr of gameplay........

 

Do you have Dirt2? The game runs at 99% consistently (constantly if you turn off VSync). It's what I use to test my clocks because it's dx11 and utilizes pretty much everything.

If you don't, it's only $5 on Steam. Great game for the price and it's a tribute to Colin McRae which is even better.

 

What normally happens in Dirt2 when your overclock is too high. Does the actual program itself fault or does it produce one of those windows system messages "Your display driver stopped responding, etc..."?

 

driver crashes, sometimes it gives the grey/striped screen before resetting the drivers.

It may not happen immediately. Sometimes it happens randomly after being stable for 2-3 days but it's sure to be due to the instability of the OC.

 

dragon age does not use the gpu as much, its actually more cpu dependant....... Bad company 2 is a good tester for stability, my drivers always crash at 850 core so i just leave it at 840, however to do this i have to use 1.15v which makes me get over 98oC.

 

Hmm weird mine is stable at 835 with 1.05V.

Your memory may be clocked too high?

 

not good at anything above 85C IMO.. calm down OC... 90C is pushing it..

 

Use OCCT to test overclock stability, not games with subjective error checking. It's the same as CPU overclocking: It might be able to boot and run games, but if it fails prime, it's not stable.