BIOS in a moment as the pc is behind me.
snoresloudly, when you said "gives a clue it looks like the bios is doing exactly what I ask it to do! The settings are correct as far as I am aware:-
CPU is a XP2400 which is a 2 GHz.
Multiply clock is set at x15
FSB in BIOS is 133/33 for 266FSB
The Memory is all configured for Auto and for SPD
The Cut out Thermal Protection setting is only adjustable to either 85c or 95c.
Definatly not a Bios Setting I am 100% confident its Hardware.
The PC has jsut cut out while in BIOS (3 mins)
Thanks for the quick call everyone !!!