I just build a system from stratch with the following components:
Motherboard: ASRock K7VM2 R3.0 (has built in video, sound, and nic)
CPU: AMD Duron 1.6Ghz Socket A 266 FSB
Memory: 2 x 1GB 184Pin DIMM PC2100 (266Mhz) DDRRAM ECC Registered CL2.5 (Crucial Technology)
HD: ExcelStor 40GB UDMA100 7200rpm
DVD-ROM: MSI 16xDVD 48xCD Int IDE
When booting up the system, it beeps 3 times, pauses, beeps 3 times, and so on.
The ASRock manual doesn't include any beep codes, and neither does their site. I've contacted them but had no response yet.
My initial idea is that 3 beeps means bad/incompatible memory, but then there is this weird behaviour: when connecting a monitor to the system, when I power the PC up the monitor immediatly dies. It's not loss of signal and dropping to standby, it literally dies and shows no sign of life. Even when disconnecting it from the PC, the monitor will refuse to power up, as if it was fried up or something. However after resting it a while it powers up again. Then if I connect it back to the PC it dies again.
Now I'm confused about it. Could it be the PSU? It says it takes 230V input, which I believe it's ok for the UK, and 250W output should be ok for the micro-ATX board.
It could be the memory (is being ECC Registered a problem?), or the Hard-Disk (UDMA100 compatible with ATA133 MB?)
Anyone can give some hints?