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PC wont boot with GFX card installed

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Possumwee

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Posted May 31, 2011 at 12:08PM

Hello all,

I have a problem with my desktop PC, it started by taking 1 or 2 attempts at turning it on to get a bios beep and the PC to boot. Once booted however the PC was fine and stable.

But the other day it just wouldnt boot, I got no bios beeps and no video output. I dismantled it and put it back together and now I have found that the pc will boot with no GFX card installed but wont with one. I have tried 2 different GFX cards and get the same problem.

Does anyone know what this could be? Could it be the PSU?

Any help is appreciated, thanks a lot!

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Possumwee

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Posted May 31, 2011 at 3:27PM

Oh just to add this PC was running and working fine for a good 3 years before this happened. Its not a new build.

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Fruit Bat /\0/\

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Posted May 31, 2011 at 4:41PM

no bios beeps and no video output

which video output are you connected to?

Once you fit the card connect the monitor to the new card boot to BIOS disable onboard graphics - save and exit

If you cannot get to BIOS connected to the new card, connect to onboard graphics - boot to BIOS, disable on board graphics, save and exit connect monitoe to new card.

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woodchip

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Posted May 31, 2011 at 5:42PM

As above how do you know its booting if you cannot see anything on screen, and you would get several BIOS beeps if there was a graphics problem

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Possumwee

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Posted May 31, 2011 at 5:53PM

I have a BFG 680i mobo, it has an LED display and an onboard speaker so you can tell when its booting. With a GFX card installed, there are no beeps and the LED display is just --.

It wont boot with any GFX card connected (I have tried 2) and I dont believe it has onboard GFX. At least there is no monitor connection I can see.

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Fruit Bat /\0/\

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Posted May 31, 2011 at 6:12PM

I have found that the pc will boot with no GFX card installed I dont believe it has onboard GFX. At least there is no monitor connection I can see.

How?

it would be beeping without a graphics card and you can't see anything without a monitor connected??

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Possumwee

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Posted May 31, 2011 at 6:24PM

Not sure how to quote on here,

But the LED display shows the booting progress, and I get a bios beep with no gfx card installed. With no monitor I obviously cant tell if its booting properly but I get no beep codes and no error codes on the LED. Which means it should be booting properly.

But with a gfx card installed I get no beep and no LED progression display.

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woodchip

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Posted May 31, 2011 at 7:08PM

How can the display tell you its booting when it nothing to connect to on the PC

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Possumwee

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Posted May 31, 2011 at 10:43PM

Its not the monitor, as I said the mobo has an LED display on it which tells you when it boots successfully (it loads to 100%). I also get no error beep codes when no gfx card is installed which would indicate an unsuccessful boot.

With a gfx card installed the LED display shows nothing and I get no initial beep.

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Fruit Bat /\0/\

Likes # 1

Posted June 1, 2011 at 10:57AM

Either faulty cards or faulty PCI slot.

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Possumwee

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Posted June 1, 2011 at 12:46PM

You think its the PCI slot?

Ive used 2 graphics cards, both of which worked in other PC's so that makes sense. I guess I need a new motherboard.

Thanks for the help!

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