CT-479 in unsupported motherboards

[stragulus]

Kamerat,

Which BIOS version did the P4S800-MX board have that you tested the Celeron-M on? I have a p4S800-MX but it doesn't POST with a celeron-M. I can't get the board to flash to its newest BIOS either, so there might be something wrong with it anyway. But it would help to know this.

[edit]
I got a replace motherboard, the P4S800-MX SE (same chipset, only with SATA controller). I updated it to the most recent BIOS, but no go on this one either!
I haven't tested the Celeron-M 350 in an officially support mobo yet, so I'm throwing a P4P800SE at it right now, to see if it actually works..

[edit2]
Yup, it works on the P4P800SE. Even with the sense pin missing on the adapter, which I found out later. I can't rule out that that was the cause of the CPU not working on those other motherboards.