770 CPU Upgrade - Errors with Pentium 200 to PII 400?

[SilentDude56k]

[Moderator Edit: Created new thread from post in Official Upgrade Thread in order to keep both threads focused.]

Hi, I just upgraded my 770's 200 MHz Pentium MMX to a 400 MHz Pentium II PE with 256 KB on-die L2 cache. It gives me a 192 error on POST, but I can bypass it by pressing ESC at the error screen and then holding F1 until Windows boots, but this means I can't get into the BIOS. It seems that the 192 error is a problem with the fan according to Lenovo's site, but the fan is working fine.

Is this maybe a conflict with the on-die L2 cache of the Pentium II? When I ran EVEREST Home Edition with my Pentium MMX it said I had 0 KB L2 cache, but when I went into detailed CPU properties, it said it had something like 512 KB northbridge L2. I know that the northbridge is on the motherboard, and the Pentium MMX Mobile has 512 KB of L2 cache, according to ThinkWiki.

When I run EVEREST with this Pentium II, it says it has 256 KB L2 (on-die, full-speed). Is the BIOS freaking out now that there is on-die L2 cache? If so, can I bypass the on-die cache and stick with the L2 on the northbridge?

Thanks for any help!

EDIT:

Hmm, my BIOS is WAY outdated...I have version 1.30, and I can get 1.34. 1.30 doesn't officially support Windows 2000, let alone Windows XP! Gonna try the BIOS update to see if this problem is cleared up...Will post back with results later.

EDIT #2: Still getting the 192 error after updating the BIOS. Is there a way to trick/edit the BIOS into letting me in?