CPU Upgrade Help

  matt_mda 16:27 07 Dec 2005


I have jsut brought a new cpu P4 3ghz 1mb cache 800FSB, ive switched my old P4 2.4ghz processor with this new one but now when i try and turn on the pc it starts to power up for a second then switches itself off.

My mother bord is a BD-7ii and the specifications say it was a 400/533mhz system data bus. could this be the problem, that my new cpu's is 800? or is the cpu just broken

if it is the problem is there any way i can get round it? or will i need to buy a new motherbord to support the cpu

  Freddog™ 16:41 07 Dec 2005

<i>"or will i need to buy a new motherbord to support the cpu"</I>

Yes it definetly seems like you do. Unless the CPU is faulty. Have you checked it's inserted correctly?


You should only buy CPUs that are compatible with your motherboard. It may be too powerful etc.

Pentium 4 1.6G 100*16 256
Pentium 4 1.7G 100*17 256
Pentium 4 1.8G 100*18 256
Pentium 4 1.9G 100*19 256
Pentium 4 2.0G 100*20 256
Pentium 4 2.0AG 100*20 512
Pentium 4 2.2G 100*22 512
Pentium 4 2.4G 100*24 512
Pentium 4 1.6G 133*12 512
Pentium 4 1.73G 133*13 512
Pentium 4 2.26G 133*17 512
Pentium 4 2.4G 133*18 512
It seems only these CPUs will work with that motherboard.

  matt_mda 16:45 07 Dec 2005

is there a way of finding out wether the cpu is wrong fro the motherbord or if it is jsut faulty? i brought it used off ebay so im not 100% confident in it

is switching straight off again when its turned on normally what happens if the fsb is too fast for the motherbord?

  matt_mda 16:46 07 Dec 2005

thanks for the list, looks like a new motherbord it is then,

can anyone reccoment a decent budget one?

  Freddog™ 16:47 07 Dec 2005

Try e-buyer?

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