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GTX 280 - PC Crashes and reboot with every games after psu fail/change.

Last response: in Graphics & Displays
August 15, 2013 2:26:01 PM

Hello !
This is my config :
Asus P7H55
Intel Core I3-540
2*2Go Kingston Value
Leadtek GTX 280
Thermaltake Smart SE 530

I used to have a no-name kind of PSU (650 watts) but it finally died on a hot evening, so i ordered a new alim, i figured that 530 watts would be enough as the PSU was rated 87%.

My PC works fine as long i'm not playing any game, but when i launch a game, it will crash and then reboot after 2 or 3 minutes.

I have logged the temps and voltages and nothing seemed to be bad.
My GPU temp was about 85C°, CPU @ ~60C°

I have tried another hardrive with another windows installation but I have got exactly the same problem.

Everything was working perfectly before my noname psu fried.

Someone has any idea of what could be the problem ?

Thansk, have a great day.
August 15, 2013 2:47:01 PM

it is probably that the computer has to little power since you downgraded from 650 to 530 watts if not its probably the graphics card.
its about 4 years old and may not be able to handle games anymore
August 15, 2013 2:49:46 PM

Yeah but would not the PSU get hot ? Is 530 watts really not enough ?
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August 15, 2013 3:01:46 PM

try reinstalling the 650 watt PSU and see if the computer works other than that i would recommend upgrading your graphics card
August 15, 2013 3:17:44 PM

My 650 PSU died... That's why i bought a new PSU.
Yeah i know I should upgrade the GC but i'm pretty cheap ATM, It was given by my brother in law from his former pc...

I used to estimate the needed psu rating and It said 390W min, so I should be good...

August 16, 2013 1:40:33 PM

Update: I swapped the PSU with a 650 noname one and it still crashes.
I swapped the GTX280 with an old fart 7600GT and it works "fine"

Do you think the gc is dead ? How could i check it ?
August 16, 2013 1:58:37 PM

if the 7600gt worked over the gtx 260 is most likely unable to handle the graphics of video games
August 16, 2013 2:05:17 PM

No shit sherlock ? Of course it doesn't handle much over the GTX280.
But the pc doesn't crash so i now know the problem is really between my GC and my PSU, but since it doesn't work with any of 2 psu, it looks like it most likely the gc that is faulty.

Best solution

August 16, 2013 2:07:01 PM

like i said get a new one
August 16, 2013 2:16:52 PM

I would like to be sure first.

How can i know if my card is faulty ?
August 16, 2013 2:58:55 PM

its faulty if an older card does beter
August 16, 2013 4:22:09 PM

Doen't do better, just doesn't crashes.
August 16, 2013 4:25:02 PM

well then the 280 is clearly broken like i said get a new one
August 18, 2013 4:02:01 PM

Update: I test my 280 in a friend's setup with a 700 watts psu and it works fine... So i guess 530 watts (even with 87% of eff.) is not enough !?