Problems installing 6800GT into Neo2 Platinum

[jteow]

This has been my first time building a computer, so if there is an obvious answer to my dilemma, that's the reason why I didn't catch it.

I built the computer using an AMD socket 939 processor, WD 200 MB hd, MSI K8N Neo2 Platinum mobo, 512 Corsair XMS memory, two opticals, and a floppy drive, inside a Antec case with a Ultra 500w powersupply. I booted it up with my friends crappy video card just to work with BIOS and check the hardware connections, and everything seemed fine. I didn't install any drivers, nor an OS.

Today, my video card, the XFX 6800GT, finally came in the mail. I was obviously quite excited, and installed the card into the mobo, and then connected my monitor into the port. But when I turned it on, I keep hearing this incredibly high pitched sound, and the monitor didn't turn on. I turned off the computer, unplugged the power cord, and disconnected the card from the mobo, and tried turning it on again (after plugging the power cord of course). No sound.

Excluding a faulty video card (at least for now), I can only surmise that I missed a step or something. Any suggestions?

 

[jteow]

Okay, well me the dumbass that I am, forgot to plug in a power connector into the video card.

Still, now I have another problem. When I turn on the computer, nothing comes up. I checked the manual to see what the lights on the back mean, and it says, "System power ON, the D-LED will hang here if the processor is damaged or not installed properly."

I swear that it's installed properly, as my friend and I were able to access the BIOS not more than a few days ago...

 

[AsusGuy]

Your PC worked fine until you installed a new video card? I think the 6800GT uses extra power, did you plug that in?
If you go back to your friends card and use that does it work?

Are you using AGP bus or PCI express bus?

 

[jteow]

Er nevermind. Heh.

I restarted the CMOS using the jumpers, and everything worked after that. I think the reason why the system hung before was because when I cleared the system with jumpers, the videocard was screwe up (didn't have the power), so when I did it again with all the hardware in working order, it panned out.

But thanks for the response.

 

[AsusGuy]

The BIOS may work even if the processor is not completly working. I got a CPU to run the BIOS even after one of the pins was broken off (very rare for newer systems). If the computer can pass the POST test than the CPU may have a funny problem. If it will not boot (a black screen and no response) than you may have fried your CPU.

 

[AsusGuy]

Ok cool !!