Video card Overheat

Visiontek Ati radeon hd 4650 pcie graphi...
January 18, 2010 at 16:17:08
Specs: Microsoft Windows Vista Home Premium, 2.498 GHz / 6141 MB
I have a 1.5 year old Gateway FX 4710-UB003A. The stock Nvidia 9800 overheated and died around 9 months in. I replaced it with a ATI Radeon HD 4650 512 MB DDR2. New card worked great until now.

My video card runs idle on start up at around 40-50 degrees C. This temperature rises with use and no amount of idling will allow it to drop. When it reaches something around 110 degrees C it shuts down the computer. (All temps taken with Everest Home Edition.)

I have installed a new 500W Thermaltake PSU. This should not have been my problem, but it didn't hurt to try, I guess.

I have cleaned and reseated the graphics card (including the fan). I have cleaned the rest of the inside of the case and the main fan which sits over the CPU.

What else should I be trying? This problem didn't start until 6 months after the card was installed, if that makes a difference. I will be happy to post any other information that may be helpful.

Thanks in advance for any replies.

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January 18, 2010 at 17:09:00
Have you looked at installing a couple of extra casefans? eg an intake fan low on front and extra exhaust fans in rear? 110degC is way too hot and increasing the airflow in the case should help.
What is ambient temperature and do you have adequate ventilation space around your case?

Goin' Fishin' (Some day)

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January 18, 2010 at 18:21:30
The HD4650 is a huge downgrade from the 9800. When a video card overheats, it doesn't shutdown the may display artifacts or freeze up, but it won't shutdown. 110C is very hot but it's still below the safe max for most cards. Are you sure it's not your CPU that's overheating? Don't trust Everest, check your BIOS readings for the system & CPU temps.

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