What's the best way to do continuous GPU temp logging?

[lavaheadache]

so it seems as though moving the non HIS card worked? Have you tried checking the gpu activity using the CCC or gpu-z?

 

[Hauk]

The front intake fan is visible in your new pic. Moving the hdd's was a great idea, the front fan isn't too far from the cards and is in line to provide decent airflow between the cards. Only reason I mentioned not swapping the cards is the master card is more taxed in CF and being the egg/orb cooler, would dump more heat into the case. In the end, it's what works that matters. When I had 4850 CF, I had to take extra steps to keep Crysis from crashing. Fun stuff!

 

[Seero]

Thanks guys. I bought Crysis during the Steam holiday sale so as soon as that is done downloading I'll run the timedemo until it crashes and see if the second card is utilized at all. I'll also try using each card individually and make sure they both work by themselves.

I'm running a Phenom II x3 720 BE on an ASUS M4A78T-E mainboard w/ 2x2GB G.Skill DDR3-1333. PSU is a 500w Silverstone. Everything is stock. A while back I did a bunch of testing with Prime95, MemTest, and a Kill-a-Watt meter, and I didn't turn up any problems. The CPU was stable for 24+ hours, no problems in MemTest through 6-7 runs (left on overnight), and I couldn't get the box to draw more than ~300w from the wall, even running futuremark vantage. So I'm pretty sure my problem is graphics subsystem-related. I just have figure out where the problem is exactly.

I suspect the problem is at the PSU. The min load of 4850 is 160w, and max 243w. 2 cards = min 320w max 486w in theory, approximately 205-376w in CF config. Since both 6-pin connectors from your PSU is from the same rail, it may not be able to handle the spike draw of power, causing your PC to shut down.
See if you can test it out with another PSU.

 

[Schmide]

I suspect the problem is at the PSU. The min load of 4850 is 160w, and max 243w. 2 cards = min 320w max 486w in theory, approximately 205-376w in CF config. Since both 6-pin connectors from your PSU is from the same rail, it may not be able to handle the spike draw of power, causing your PC to shut down.
See if you can test it out with another PSU.

WTF. A 4850 typically uses 40w idle, 110w game load, 140w furmark. Where the hell did you get these numbers?

 

[toyota]

I suspect the problem is at the PSU. The min load of 4850 is 160w, and max 243w. 2 cards = min 320w max 486w in theory, approximately 205-376w in CF config. Since both 6-pin connectors from your PSU is from the same rail, it may not be able to handle the spike draw of power, causing your PC to shut down.
See if you can test it out with another PSU.

where are you getting those ridiculous numbers from? a 4850 max TDP is only 110 watts.

 

[Schmide]

You know you're wrong when toyota and myself are in agreement. :awe:

 

[toyota]

You know you're wrong when toyota and myself are in agreement. :awe:

hey now, we get pretty close to agreeing most of the time...

 

[cusideabelincoln]

I suspect the problem is at the PSU. The min load of 4850 is 160w, and max 243w. 2 cards = min 320w max 486w in theory, approximately 205-376w in CF config. Since both 6-pin connectors from your PSU is from the same rail, it may not be able to handle the spike draw of power, causing your PC to shut down.
See if you can test it out with another PSU.

The 4850 uses much, much less power than 243W. It's max load under gaming conditions is about 110W. Two 4850s would only be about 220W.

Now he PSU could indeed be the culprit. Under load its temperature increases, and the heat inside the case is also increasing, and when a PSU's temp goes up it usually becomes more unstable. If the PSU is getting hot and his system is loading it near or over it's maximum output, then that could cause instability.

But I suspect he has at least a good quality 600W power supply, and as such this shouldn't be the problem unless there is something defective with his unit.

 

[v0id]

But I suspect he has at least a good quality 600W power supply, and as such this shouldn't be the problem unless there is something defective with his unit.

It's 'only' 500W, but I think it's pretty good quality unit:

Silverstone Element ST50EF-PLUS 500W

I'll do some more testing today and see if it's still stable.

Thanks everybody for the suggestions.

 

[Schmide]

Do you have an overclocked CPU?

The reason I say this. 2 cards pulling 200w + an overclocked CPU will cause the 12v to dip even on a highly rated PSU. If so, you may be able to bump your CPU voltage to alleviate the dip.