no P.O.S.T.ing after CPU upgrade

[Frank]

I have an old P2B-F that I upgraded from a 400/100mhz P2 TO A
800/133mhz P3. The BIOS was flashed, the frequency jumpers adjusted,
the bus multiplier as well. The voltage regulator is supposed to be
compatable. All research shows my board is able to handle the P3.
However, with the new processor, it won't post. Power can be turned
on from the front, but no boot or video at all. With the old P2 in,
it posts, but still no video (just color blocks). Did I fry the AGP
slot I wonder? I tried two video cards, a 16mb and a new 64mb. Also,
the memory is old SDRAM 100. Would that prevent posting? Thanks.

 

[Roy Coorne]

I have an old P2B-F that I upgraded from a 400/100mhz P2 TO A
800/133mhz P3. The BIOS was flashed, the frequency jumpers adjusted,
the bus multiplier as well. The voltage regulator is supposed to be
compatable. All research shows my board is able to handle the P3.
However, with the new processor, it won't post. Power can be turned
on from the front, but no boot or video at all. With the old P2 in,
it posts, but still no video (just color blocks). Did I fry the AGP
slot I wonder? I tried two video cards, a 16mb and a new 64mb. Also,
the memory is old SDRAM 100. Would that prevent posting? Thanks.

You might run the P3 at 100 MHz in order to find out whether the PC100
RAM is the bottleneck for posting - and use a PCI video card to check
that aspect.

Roy

 

[Pete Gray]

I have an old P2B-F that I upgraded from a 400/100mhz P2 TO A
800/133mhz P3. The BIOS was flashed, the frequency jumpers adjusted,
the bus multiplier as well. The voltage regulator is supposed to be
compatable. All research shows my board is able to handle the P3.
However, with the new processor, it won't post. Power can be turned
on from the front, but no boot or video at all. With the old P2 in,
it posts, but still no video (just color blocks). Did I fry the AGP
slot I wonder? I tried two video cards, a 16mb and a new 64mb. Also,
the memory is old SDRAM 100. Would that prevent posting? Thanks.

When you crank up the FSB to 133 MHz, it also cranks up the AGP bus,
making it out of spec. It looks as if your AGP cards can't handle the
increased speed. Also, your PC100 SDRAM may not be able to handle the
increase to 133 MHz.

Pete