Ati Radeon HD 4870 black screen

[taher]

I recently installed Ati Radeon HD 4870 on my windows xp computer. The problem after installing a new graphics card i am getting black screen on windows after booting. Some times it also appear while playing high application game. I have tried to restart my system and updated all the drives but no fix....

[Team Leader]

Can you boot into safe mode? If so - boot in - & look in device Manager in my computer, is the device installed properly?Have you tried leaving the new hd 4870 graphics card out and trying the onboard/integrated graphics?perhaps your BIOS needs set to run the new graphics card.

[kiLLer]

Make sure you update the hd 4870 graphic card drivers from the manufacturer site, If the problem still exists then go into the bios and set the display to onboard graphics, boot then shutdown the pc and remove the graphics card. Then boot up and see if the problem still happens. If you need help with the BIOS settings then just ask.

[ApPy10]

If you're going to actually use new hd 4870 graphics card you'll need the extra one to have it's own onboard bios. Otherwise disable the onboard graphics to allow access to the other that you intend to use. You may have to boot OS in safe mode to install hd 4870 card drivers.