Losing FPS without sign of heating problems.

Asus Engtx560 ti dcii/2di/1gd5 geforce g...
July 19, 2012 at 08:22:27
Specs: Windows Vista, Intel Quad Core @ 2.50Ghz / 6.00 GB
Hey there,

About a month ago I purchased a Nvidia GTX560 TI (Asus overclocked) and every game ran as smooth as planned.
However, since a few days I seem to be losing FPS for no apparent reason:
On light games, like Team Fortress 2, I used to have 120 FPS, which has now dropped to a (still playable) 50-60 FPS.
Heavier games like Bulletstorm used to run at a solid 60 FPS, but has now become completely unplayable with 5-9 FPS.

The weirdest part is that this doesn't happen immediately at the start-up of my PC, but rather after a couple hours of playing games. This could point at a overheating problem, but the card never gets hotter than 50°C

Once the FPS drop hits, it seems that my card becomes stuck in some sort of idle mode. Nvidia Inspector and PC-wizard both claim a temperature of 38 - 40°C, fan speed under 25% and a clock speed of only 66 MHz (while it's clocked at 900 MHz), even while playing games or using benchmark programs like FurMark.
The card keeps on doing this until I restart the PC. (Even a fast reboot seems to solve the problem for a couple of hours)

Anyone know whether this is some sort of protection, which hopefully can be delayed/disabled, or is there something more serious going on?

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July 19, 2012 at 09:23:20
Did u try re-installing video driver(get the latest fron nvidia website)?

You know the real meaning of peace only if you have been through the war.

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July 29, 2012 at 07:28:25
About a week ago I re-installed the video driver, as you suggested, and it seemed to help for a little while. However, after some more testing (aka gaming for few hours straight) it appears the problem still occurs.

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July 29, 2012 at 09:39:07
what about ur other system specs ? mention the power supply specs could be a low powered power supply not giving enough juice this could explain the idle mode.

computers are a second home

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Related Solutions

August 5, 2012 at 07:11:28
The power supply is a LiteOn PE-6451-1 with a max output of 450 Watt.

After doing some research you seem to be right; Nvidia has stated that the card needs a minimum of 500 Watt.

I guess this means I need to replace my PSU? If so, does anyone have some tips/recommendations when buying a new one?

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