BIOS problems

[KilGil27]

Well, to start, I have an Asus A8N-SLI motherboard. The chipset fan recently died, and I just got the replacement today in the mail. I unplugged everything, took off the motherboard, and replaced it. When I turned it back on, it gave me a CMOS checksum error, so I reset and that went away. Now, my internet is only half working or something, I can browse the internet, download with utorrent, but I cannot get onto aim and windows can't check for updates... also, my cd drives won't recognize at all when plugged in to the secondary IDE slot, and when I plug them into the primary one, they recognize, but I can't open any discs I put in them. Any idea what's going on and how I might fix this? I'm running Vista by the way, if that helps. what did I doooooooo

 

[RMSe17]

I would try re-flashing the BIOS with the latest firmware as a first thing

 

[boomerang]

Make sure you don't have an EMI spring on the I/O Backplate stuffed into a port. I would think that would just result in a no-boot situation, but who knows?

I had a system that was in a brown-out situation that would freeze at Windows Update but otherwise worked normally. No physical damage or scorching, etc. could be detected on the motherboard. Replacing the board fixed the problem.

I think you damaged something on the board, but am hoping you may have grounded the board to the case.

Removing it from the case and running it would verify that.