Computer keeps restarting when booting after putting in new graphics card

[chelck]

I just got a Radeon HD 6850 by gigabyte today and from previous issues I thought I was suppose to put the card in before installing the new drivers or remove the old ones. I put the card into my computer and plugged the vga in and turned the computer on and it started, I told it to start windows normally, then it did the little spinning animation with the loading bar like it usually does then it just goes black and goes back to the original boot up screen when you first start the computer.
I have tried starting in safe mode with networking so I could delete the only drivers and install the new ones but that didn't work, it just does the same thing.
I can access the system repair and have tried the system restore which didn't work.
I am sure the problem lies with me not uninstalling the drivers because stupidly, 2 months ago I did the exact same thing with a different graphics card on another computer. I thought it was time to get a better computer so I didn't think much of it.
EDIT: I also tried taking out the new video card and used the build in one and got the same effect.

Specs:

Processor: AMD Athlon II X4 630 Processor 2.80 GHz
RAM: 4 GB (3.75 GB is usable)
System type: 64-bit
Motherboard: Biostar A880G+
Power source: CoolerMaster RP-600-PCAR (W600)

[moesislack]

Take out the card and use the onboard video to uninstall the previous drivers. Then put the new card in. If that fails call gigabyte support I guess.

[chelck]

[QUOTE=moesislack;33971141]Take out the card and use the onboard video to uninstall the previous drivers. Then put the new card in. If that fails call gigabyte support I guess.[/QUOTE]

AH, I knew I was forgetting something. I then took out the card and tried with the onboard one and it got the exact same thing

[moesislack]

[QUOTE=chelck;33971215]AH, I knew I was forgetting something. I then took out the card and tried with the onboard one and it got the exact same thing[/QUOTE]

[QUOTE=moesislack;33971141]Take out the card and use the onboard video to uninstall the previous drivers. Then put the new card in. If that fails [B]call gigabyte support I guess.[/B][/QUOTE]

[chelck]

[QUOTE=moesislack;33971264][/QUOTE]
It's not available right now

[editline]30th December 2011[/editline]

I wrote an email in the customer support section but I don't know how many weeks it will take for them to process it. Anyone else have any ideas?

[mooty]

get a better power supply i would imagine...... i think it would be ideal if you got atleast a 750WATT

[chelck]

[QUOTE=mooty;33974330]get a better power supply i would imagine...... i think it would be ideal if you got atleast a 750WATT[/QUOTE]
I'm not even sure anyone reads my whole post or not, I mentioned that when I tried using the built in graphics card after the new one messed up that it still didn't work. Also the requirements for the card is a w500 power supply

[chelck]

I ended up restoring my computer to factory settings. It wiped my hard drive but at least my computer is usable now. I installed the card correctly now and it works great.