I just bought an nvidia 6450 card for my 1 year old computer. I plugged in the card and the computer would not boot. No post or beeps. The fans run and the hdd spins up. There is power to the dvd drive also.
The psu is only rated at 220W, but I picked this card for the low power requirements.
I removed the card and plugged the vga cable back into the on board video slot and still nothing.
it depends. if the unit was good quality one it should be able to run 6450 just fine. but if the psu was quite old or generic one it might be the problem. i think it is a good idea to get better power supply. try to get at least 300w psu that comes from reliable psu maker. if you look for generic psu try to look one with 400w-500w unit though personally i don't recommend you to use generic psu with your computer
first i will suspect the psu. maybe it cannot provide enough power needed for your pc to be properly boot hence the pc fail to boot even if other components are powered up such as fans. other than that it could be your mainboard
1. Removed video card, pci cards, ram.
2. Powered up and got one long loud beep (no memory)
4. Added one stick of RAM.
5. Powered up and it booted using the on board graphics.
6. Disabled the on board graphics in the device manager.
7. Tried Inserting the new graphics card and the computer wouldn't boot (no post or beep)
8. Removed RAM and Video Card and got the one long beep.
9. Reinserted new video card and one stick of RAM and it booted using the new graphics card.