Signs of Power Supply PSU bottleneck

MisterBombastic

Honorable
Jan 31, 2013
11
0
10,510
i switched from a HD 6870 Card to a HD 7950 Card
and im having performance issues ingame and also lag problems (sudden lags ) in most of the games, old drivers are completely wiped and new drivers installed.
i noticed that on afterburner i have throttling with GPU usage on idle status,
http://s17.postimg.org/yo5996ba7/gpu_tr.jpg there is the graphic.
but for this moment its not throttling the GPu is at 0% usage all time but today earlier it was throttling , so my question is, is it the power supply (somethign about 550 watts)
all i can think about is the power supply since i never had problems with the 6870 card.
the 7950 clearly has more usage of power supply. any help will be apreciated, thanks in advance.
 
A 7950 would not have any issues on a 550 power supply, even a cheaper one, it draws less than 200 watts under full load.

Could be a card issue, maybe driver issue. What if you put the old card back in, is it running OK or are you seeing the same issues?

Maybe heat? Try running with the case open and a fan blowing at it.

Try updating the BIOS on the motherboard, can't hurt to try that.