i just bought this graphics card.
:Sapphire HD5570 1GB DDR3 Graphics Card 2.1 PCI-e
am not sertain but i think i have a 1.0 slot.
and a 450W power supply.
the problem is when i put it in. and try turn on the PC. it starts.. then stops... then starts and stops again and again.
when i remove the card. it goes back to normal working fine. ive tried to look up the problem on line. my power supply is high enough. so i dont think thats the problem. but i am not the best at computers so i thought id ask here.
Got it. Try this. You are going to shut the system down and disconnect all power sources (power cable, monitor, powered speakers). Then press the power button to discharge any residual power in the system (yes, it is true). Then remove the old video card. Then remove the motherboard battery (a.k.a. coin battery) and wait 30 seconds. This resets your BIOS to its default config.
Now, re-insert the battery and install the new video card. Reconnect all of your power sources and attempt to restart the computer.