Overheating graphics card help
Discussion
Right, I have no idea what's going on here so maybe someone else has an idea.
Gfx card is a Gainward NVidia GS7800. It has been running in my PC for 6 months now, so too has a 450w PSU and a new case fan. They are all running and working for everyday use but when I run a gfx extensive game now after 10minutes or so the GPU temperature goes up to around 70+ and goes into go slow mode (3fps) and puts up a warning asking me if the gfx card's extra power supply is connected.
Well it is connected and working as it displays that message on startup if not connected, all the fans are working too. Up until this week my core CPU temp on normal use was about 40-42 degrees, it's now 53-54 and of course jumps much higher under load.
Could it be my PSU failing and not providing enough power when the gfx card is under load to run the fan at a faster/higher speed to cool it? Would that cause the rise in temperature in normal use? Is it the gfx card itself, its fan is fine and it's running the fans under Dynamic speed control in the Expertool controller.
Gfx card is a Gainward NVidia GS7800. It has been running in my PC for 6 months now, so too has a 450w PSU and a new case fan. They are all running and working for everyday use but when I run a gfx extensive game now after 10minutes or so the GPU temperature goes up to around 70+ and goes into go slow mode (3fps) and puts up a warning asking me if the gfx card's extra power supply is connected.
Well it is connected and working as it displays that message on startup if not connected, all the fans are working too. Up until this week my core CPU temp on normal use was about 40-42 degrees, it's now 53-54 and of course jumps much higher under load.
Could it be my PSU failing and not providing enough power when the gfx card is under load to run the fan at a faster/higher speed to cool it? Would that cause the rise in temperature in normal use? Is it the gfx card itself, its fan is fine and it's running the fans under Dynamic speed control in the Expertool controller.
Replace the cooler with one of these: www.arctic-cooling.com/vga2.php?idx=40
I have one on my 7800GT and it's great: runs cooler than the stock one and quieter too.
I have one on my 7800GT and it's great: runs cooler than the stock one and quieter too.
robbieduncan said:
Replace the cooler with one of these: www.arctic-cooling.com/vga2.php?idx=40
I have one on my 7800GT and it's great: runs cooler than the stock one and quieter too.
I have one on my 7800GT and it's great: runs cooler than the stock one and quieter too.
I've have a clean around mine to see if it's the cause, but I'll have a look at that too.
This one right? - www.overclockers.co.uk/showproduct.php?prodid=HS-009-AR
robbieduncan said:
Replace the cooler with one of these: www.arctic-cooling.com/vga2.php?idx=40
I have one on my 7800GT and it's great: runs cooler than the stock one and quieter too.
That is an arctic cooling one fitted as standard by Gainward. I have one on my 7800GT and it's great: runs cooler than the stock one and quieter too.
My guesses: either dust or the PSU isn't providing enough juice.
if as you say all the fans are still going around then I would assume the PSU is playing up.
If the PSU is failing to regulate the voltage giving too much to the card (I assume the card has it's own power connector) then that would explain the unusual temps. This in turn would warming up the ambient case temp and thus increasing the CPU temp also.
How old is the PSU? As they age the Caps fail and the actual power the PSU can make falls away. Does it have a dedicated PCI-e type video connector or does the card (being AGP) not use the PCI-e video power connector and just use the std. molex connector? If the std. Molex connectors (hard disk drive power connector) is the video card the only thing using that branch (rail) of power connecotrs?
When my PSU failed the system became hotter than usual (sometimes witha slight burning smell) and started ramdomly re-booting. After a couple of weeks it got worse so I took a look. I tried to remove the 20pin ATX connector from the mobo but it was melted to the board and about 6 of the pins were black
When I finally prised it off with a screw driver (the board and PSU were obviously knackered) half the PSU plug was left behind in the mobo socket.
If the PSU is failing to regulate the voltage giving too much to the card (I assume the card has it's own power connector) then that would explain the unusual temps. This in turn would warming up the ambient case temp and thus increasing the CPU temp also.
How old is the PSU? As they age the Caps fail and the actual power the PSU can make falls away. Does it have a dedicated PCI-e type video connector or does the card (being AGP) not use the PCI-e video power connector and just use the std. molex connector? If the std. Molex connectors (hard disk drive power connector) is the video card the only thing using that branch (rail) of power connecotrs?
When my PSU failed the system became hotter than usual (sometimes witha slight burning smell) and started ramdomly re-booting. After a couple of weeks it got worse so I took a look. I tried to remove the 20pin ATX connector from the mobo but it was melted to the board and about 6 of the pins were black
When I finally prised it off with a screw driver (the board and PSU were obviously knackered) half the PSU plug was left behind in the mobo socket.
Normally PSUs have an output chart on them. You can also check the manual.
Check the maximum output (in amps)for a given DC output voltage.
A lot of people assume a higher wattage indicates a better PSU.
In fact, the current figures are what you need to look at.
If you're running two video cards (SLI, for example) look for a PSU which is certified.
Other factors to consider include noise and efficiency.
What make/model is your PSU ?
Check the maximum output (in amps)for a given DC output voltage.
A lot of people assume a higher wattage indicates a better PSU.
In fact, the current figures are what you need to look at.
If you're running two video cards (SLI, for example) look for a PSU which is certified.
Other factors to consider include noise and efficiency.
What make/model is your PSU ?
I've de-fluffed the gfx card, although the fan was clear there was a fair bit on the grill next to it that runs into the plastic cover. Running at 42-45 degrees now, I haven't tested it under any heavy load yet but I think tomorrow morning I'll take it out again and give it another clean.
Ps. Is the ducting & fan glued on?
Ps. Is the ducting & fan glued on?
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