[Nottingham] Boot up problem

[danny]

Hi,

When i have to restart this box 99% of the time it dosnt boot. It either gives 
me 3 high pitched fast beeps and 2 low, slow beeb (which is a memory error) 
or nothing at all. It normally takes me 10 mins and 20 attempts or so to get 
it booted up!

When i leave the power off for a while, on booting the BIOS is automatically 
loaded and it says this :

"During your last boot up your system hung for an impoper CPU speed. Your 
system is now working in safe mode (BUS: 100MHz, PCI: 33MHz) to optimize the 
system performance and reliability make sure the settings related to the CPU 
+ DRAM conforms the specifications."

Thing is, i cant change the CPU or DRAM settings, they seem to only have one 
possible value.....their current settings.

Does anyone have any clue as to what i can do to fix this REALLY annoying 
problem?

thanks
-- 
- Danny