I am trying to sort out a desktop system whose issue was blue screen spontaneous reboots. On boot, couldn't get into the OS, even in safe mode.
Ran Memory test on the 1GB stick and it failed 5 out of 6 tests. Replaced with two sticks of known good RAM. Initial test results showed failed 1test/passed 5 then passed all 6. Still no access to OS on boot - rebooted every time. BIOS display showed only one stick present, though.
Reseated RAM (tried one stick only in slot 2 to see if it would boot into OS) and now get continuous beep. Post card shows error code C1 - Phoenix BIOS lists show this as "Fail to initialise Post Error Manager (PEM)".
All jumpers and connections are correct and this happens irrespective of which slot the RAM is in.
PSU is fairly new.
ESys mobo P4M800Pro-DDR2 with N15235 printed on the board itself.
Any thoughts on what this could be? Is the mobo on its way out?