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Computer shuts down by itself after new graphics card?

Tags:
  • Graphics Cards
  • Drivers
  • Graphics
Last response: in Graphics & Displays
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July 12, 2011 3:23:29 AM

Hello,

I REALLY need your help. i went and got a new graphics card today (ATI RADEON 6870) so i can replace my GeForce 9400. At first, everything went fine when i switched the cards. I installed the drivers off the CD and had to reboot.

After i rebooted, my pc would start up until the "Starting Windows" screen and then would completely shut off.

After a few hours, i ended up switching back to my 9400, and deleted all the drivers i had. then i turned the computer off.

I put in my 6870 and ran in safe mode, and then went to the AMD website and downloaded new drivers from there.

after the reboot, i ended up going past the "Starting Windows" screen and actually started windows up normally and not in safe mode.

After a minute or two, it crashed again.

Im so tired of trying to fix this, so is my PSU the problem?

Specs:

Intel Core duo @ 2.66 GHz
Radeon 6870
4 GB of Ram
and my PSU is 500 watts.

PLEASE help.

thanks

More about : computer shuts graphics card

July 12, 2011 3:34:06 AM

can anyone help?
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a b U Graphics card
July 12, 2011 4:01:55 AM

NOt all 500 watt PSUs are created equally....(some no-name PSUs might have issues with even a 300 watt continous load, which is bad news.)
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a b U Graphics card
July 12, 2011 4:20:43 AM

It sure sounds like a power problem - what is the make and model of your psu please?

Make sure the 2 6-pin power connectors are firmly attached to your 6870 . . . it sounds like your system is shutting down the minute the vid card attempts to draw power for graphics.
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July 12, 2011 12:29:16 PM

Twoboxer said:
It sure sounds like a power problem - what is the make and model of your psu please?

Make sure the 2 6-pin power connectors are firmly attached to your 6870 . . . it sounds like your system is shutting down the minute the vid card attempts to draw power for graphics.


It's an Antec SP-500 (or a PS-500, I'm not too sure)
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a b U Graphics card
July 14, 2011 8:24:05 PM

Have you connected the two extra power plugs the 6870 requires?

If you connected them correctly, then the problem is most likely either the psu or the graphics card. It's not possible to tell which one without swapping.

You could try installing the graphics card in someone else's PC with a good psu, or you could try a good psu in your current PC.
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