Hardware :: BIOS Hangs/locks After Detecting Hard Disks/CD-ROM?

I wanted to use an older computer again, so I tried to fire it up, but alas. I don't recall when the last time was that it was running, but I don't think it didn't run back then. I just had a new computer

[HARDWARE]
- MOBO: ALiveNF6G-DVI
- BIOS: BIOS P1.30
- CPU: AMD Athlon 64 X2 4800+

[code].....

[PROBLEM] What happens is this:

1. The computer starts up. No POST-beeps.

2. CPU is ok.

3. RAM is ok.

4. Disks are auto-detected and listed.

5. Then the computer halts. No message, no warning. I am not even able to hit control+alt+delete (I say this, cuz I noticed this. I am able to run and alter the BIOS in an earlier state of booting up, with the keyboard, obviously). It just completely hangs/locks.

[WHAT I HAVE TRIED SO FAR]

1. Removing all hardware but monitor, RAM, keyboard. - Result: comp stops doing stuff after checking RAM, without any message whatsoever.

2. Cleared the CMOS (with the jumper, also by removing the battery). - Result: no changes.

3. There are two pieces of RAM. I removed them all. Result: POST-beeps. I put one back: loaded till after disks. See above. Exchanged the RAM-piece with the other RAM-piece (so: still one piece of RAM): same thing.