Installed a new DVD burner and when I went to power my system up, I got a never ending beep. No pauses, just one long beep. It also sounded like ringing. Opened the case back up and powered it on and found out it was my video card making the noise. The card is only a few weeks old. Took that card out and put in the old one. When I powered it back up I got no ringing. Instead I got never ending beeps with a seconds pause between them. It only stopped when I powered down the system. Unplugged everything and reseated the card and memory. I left all my drives unplugged and just plugged my card in. Plugged in, powered up and got the never ending beeps with a seconds pause between them. Took the card out and left the memory and CPU. No beeps. Powered down, unplugged and took the memory out and put the card back in. Powered up and no beeps. Powered down again, unplugged and put the memory back in. Powered up and got the beeps. Powered down, unplugged, and moved the memory to the second set of slots. Left the card out and powered up... no beeps. Powered down, unplugged and put the card back in. Powered up and the never ending beeps again! I think it is the memory but I'm not sure. I had to replace my original memory because I was getting errors when I started up. The new memory is about six months old. I replaced my video card because the fan on the old one was stopping and not starting back up unless I shut the computer down and started up again. I know my power supply is good because all of my fans work and the LED on my board lights up. Like I said, I think it is the memory or the dimm slots are going bad. My motherboard is getting up there in years. Breakdown of my system: 6 hard drives 2 DVD Burners ASUS P4P800 motherboard ATI Radeon 9800 XT (old card) BFG GeForce 7800GS OC (new card) 2 GB Crucial RAM (replaced 1 GB Crucial) P4 3.2ghz processor Antec case with Antec 430w power supply Any help is welcomed. Thanks, Rogue S