High temp on load with VF900

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Luke20

n00b
Joined
Jun 1, 2006
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19
65-66 w/ NvTempLogger - Real-time HRD IBL running.

Freshly installed 2 Vf900's on my eVGA 7900GT CO's

Everything is stock, not sure what's going on..

Running 91.28 drivers, Antec True Power 2.0 550 Watt PSU
 
Double check vf900 placement on core, arctic silver, airflow. possibly bad sensor, have you tried any other programs to monitor temps?
 
How are those bad temps for load? Also, what thermal compound did you use? AS5 is best.

Make sure you tightened the screws evenly when your fastened the heatsink unto your card. The card will also need proper airflow since it will not send it out.
 
Especially if they're one of the newest cards, like those being sent out w/ the RMAs..With the stock cooler & 1.45v vcore, I see 86c w/ the 'upgraded' cooler on my soon to be RMAd again gt co.
 
I have a EVGA 7900 GT and the Zalman VF900 running at 525/775. It idles at 40C and reaches 46-48C on load. So 66C is pretty high. Even with the stock fan, it's cooler than that.

Like digitalx0 said, check placement of the heatsink, make sure the artic silver is placed properly.
 
My 7900GT KO with VF900 runs about 41C idle and 51C load, however the AS5 has not had time to settle in yet so temps might go down.
 
I can bet you its the air flow in your case. I have the same exact setup, two 7900gt's running 600/1800 w/ two VF900. With a 120mm fan blowing straight at it from the side it idles at 38-39c and loads go up to around 48-50c. but once i turn that 120mm fan off, my idle temps shoot up to 45-48c and load temps around 60c. The VF900 seems like it requires good airflow to function properly as far my own observations. I think the heat gets trap in between the cards and the heat just builds up and temps go up.
I suggest trying this. When testing try sticking a fan on the side of the cards and have it blowing directly at the cards see if your temps go down. This is assuming that the heatsink is seated properly on the GPU's.
 
I had issues mounting the vf900 correctly.. make sure the tension is even all around on the bolts so you have equal pressure on the GPU.
 
Maichena said:
I have a EVGA 7900 GT and the Zalman VF900 running at 525/775. It idles at 40C and reaches 46-48C on load. So 66C is pretty high. Even with the stock fan, it's cooler than that.

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That is ENTIRELY dependent on ambient temps (not to mention case airflow). In my house, in this hot ass climate, 75c loads are COMMON with the stock cooler...and that's running at stock 1.2v on the core.

I have good airflow in the case as well.....
 
Those temps are nothing, video card cores can handle way more than that.

I remember the nvidia 70 series drivers introduced a bug that made the cards idle, yes IDLE at around 70C. Thankfully it has been fixed since then though.
 
jaguax said:
Those temps are nothing, video card cores can handle way more than that.

I remember the nvidia 70 series drivers introduced a bug that made the cards idle, yes IDLE at around 70C. Thankfully it has been fixed since then though.
Click to expand...
The drivers just misread the temp BTW, the cards were never actualy running that hot at idle.
 
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