My Pc doesnt boot I change GPU

Xfx Radeon hd 5570 pci-express video car...
March 28, 2011 at 15:12:12
Specs: Windows XP, 1GB
My Computer Won't Boot... I didnt delete any Drivers or change any settings, I simply swapped Cards. Now either card doesnt work..

New card: XFX Radeon HD 5570
Old card: XFX Geforce 7900 GT

I'm struggling to Troubleshoot by eliminating options because nothing works.
I've tried:
New Card + Vga Cable + Monitor = "HP Dos Screen with: F1 for Setup, Etc" then "Black Screen"
New Card + Vga Cable + Tv = Nothing.
New Card + Hdmi + Tv = Nothing.
New Card + PCI-Cable (the wider slot.?) + Monitor = Nothing
New Card + PCI-Cable + Tv = Nothing
Old Card + PCI-Cable + Monitor = Hp Dos Screen, then black screen with an UNDERSCORE "_" top left
Old Card + Vga Cable + Tv = Nothing
Old Card + PCI-Cable + Tv = Nothing
Old Card + Vga Cable + Monitor = Hp Dos Screen, Black screen with Underscore.

Could I have messed up my Pc because I switched from NVIDIA to ATI without removing drivers first?

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March 28, 2011 at 15:20:43
I doubt it is a driver issue since nothing you have said indicates windows is even getting to the stage of booting the operating system.

I suspect you may have dislodged or damaged the hard-drive data cable.

Put whatever configuration together to get an image on-screen and when you get to the F1 prompt, press it and see if you can get into BIOS settings. Check that your drive is properly recognized

Goin' Fishin' (Some day)

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March 28, 2011 at 15:27:10
I can get to the F1 stage, when i press it, it has "Generic Hard Disk" Selected as Primary Boot Device under the "Boot" is this what you mean? I'm not that great with this side of computers i'm afraid to say..

On the "main" tab it doesnt have a Hard Drive listed, only my Dvd drives... which One am I looking for?

I may add there are about 4 connectors just loose in my tower. I know a couple of them are from a removeable hard drive that went bust but I really don't know what else a couple of them are.

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March 28, 2011 at 16:03:41
It seems your hard drive is not being detected in BIOS.
Disconnect the power and then disconnect & re-connect the power and data cables to your hard drive. With the data cable check the connection to the motherboard is firmly and fully inserted, then try booting again.

Goin' Fishin' (Some day)

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Related Solutions

March 28, 2011 at 16:11:37
Ok, I really don't know how to do that, so I suppose I'm just screwed / have to pay somone (no money = screwed). I can't get to my Hard Drive because theres an empty casing slot where a removable hard drive used to be, I've got the HP Pavillion Media Centre where it has an internal hard drive and Removeable.. dont know what to do

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March 28, 2011 at 16:15:02
Wow.. seems I have sorted it via a massively Wild guess of plugging in 1 of 3 unconnected power cables., It seems when i asked my girlfriend to help me move some wires out the way whilst I fitted the Gfx card she unplugged one.

So thats my Old card working,

My next problem is my screen doesnt pick up the new card at all.

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