Video Card overheating

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For some odd reason My Video card(9800 GT) is at 77c at idle even after i just booted up. Thinking it was a bad Videocard i bought a new one (GTS 250) and replaced my 9800 GT, But it's still overheating at the same temperature. Also I've noticed that I can't hear the sound of the video card fan anymore like i used too when it wasn't overheating. I did a Video Card Stability test my Cards and they passed. I set the fans on my Antec 900 on high, Could this be a PSU or Mobo problem?

Mobo: ASUS P5N-D
CPU: Duel Core e8400
Ram: CORSAIR 2GB KIT TWIN2X2048-8500C5D
PSU: CORSAIR CMPSU-650TX ATX
Video Card: 9800 GT & GTS 250
Case: Antec 900

Edited by Esca - 25/Aug/2009 at 10:00pm

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Esca Members Profile Find Members Posts Junior Member Joined: 29/Jun/2009 Location: Guam Posts: 5	Quote Reply Topic: Video Card overheating Posted: 25/Aug/2009 at 9:59pm
	For some odd reason My Video card(9800 GT) is at 77c at idle even after i just booted up. Thinking it was a bad Videocard i bought a new one (GTS 250) and replaced my 9800 GT, But it's still overheating at the same temperature. Also I've noticed that I can't hear the sound of the video card fan anymore like i used too when it wasn't overheating. I did a Video Card Stability test my Cards and they passed. I set the fans on my Antec 900 on high, Could this be a PSU or Mobo problem? Mobo: ASUS P5N-D CPU: Duel Core e8400 Ram: CORSAIR 2GB KIT TWIN2X2048-8500C5D PSU: CORSAIR CMPSU-650TX ATX Video Card: 9800 GT & GTS 250 Case: Antec 900 Edited by Esca - 25/Aug/2009 at 10:00pm

yougotkicked Members Profile Find Members Posts Platinum Member Joined: 01/Aug/2006 Location: United States Posts: 625	Quote Reply Posted: 26/Aug/2009 at 2:22pm
	hmm, if the 9800gt wasn't overheating befor, that would make me doubt the likelyhood of a bad thermal sensor, and your system has plenty of cooling. nothing really seems likely to me, but i would suggest you update all the drivers for your graphics cards and mobo, and maybe try updating the BIOS on your mobo. if the software updates don't do anything to fix the problem, i would test to see if the problem is actually with the temperature of the card, or how it is being read by the system. open the side of the case and see if that has any effect on the temperature, if not i would suspect that the issue is with the thermal sensors and not the actual cooling system. how are you getting the temperature readings? not sure if it will matter but i would like to know just in case anything comes to mind.


Esca Members Profile Find Members Posts Junior Member Joined: 29/Jun/2009 Location: Guam Posts: 5	Quote Reply Posted: 27/Aug/2009 at 1:29am
	1. Currently using Rivatuner to check temps. 2. I turned up the fan speed to 80% and the temps went down from 77c to 64c. 3. Drivers updated 4. Also forgot to add that all this started happening after i had a power outage.

yougotkicked Members Profile Find Members Posts Platinum Member Joined: 01/Aug/2006 Location: United States Posts: 625	Quote Reply Posted: 27/Aug/2009 at 2:12pm
	ahh, the power outage, responsible for all sorts of wonderfull things; data corruption, component failure, and everything in between. i doubt that the protective hardware in the power supply would allow the internal hardware to suffer any damage that could do something like this, if it is related, my best guess would be that the PSU fans may be under performing. because the psu is placed under the graphics card in your case, the hot air is accumulating there and raising temperatures. check how much air is moving through the PSU, if you dont feel a lot of air being pushed out the back, try to get more ventilation in the area (remove the PCI slot covers and zip-tie an exhaust fan to the open space).


Esca Members Profile Find Members Posts Junior Member Joined: 29/Jun/2009 Location: Guam Posts: 5	Quote Reply Posted: 27/Aug/2009 at 5:38pm
	I just felt the back of the PSU and it's just as you said, "if you dont feel a lot of air being pushed out the back". Not alot of hot air is coming out, Actually its like no hot air is being pushed out. I think I'll just buy another PSU.

yougotkicked Members Profile Find Members Posts Platinum Member Joined: 01/Aug/2006 Location: United States Posts: 625	Quote Reply Posted: 28/Aug/2009 at 2:45pm
	that's up to you, there is the chance that the psu was damaged beyond the fans and may be under-powering your system, or otherwise not functioning correctly, and could eventually fail. it is also possible that nothing beyond the fans was damaged, and replaceing the fan is all you need to do. if you can spare the cash for a new psu i would go ahead and buy one. glad i could help you figure this out, and proud of myself for diagnosing a bad power supply from an over-heating graphics card .