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NEC Versa LX CPU upgrade

Posted: Fri Sep 22, 2006 2:19 am
by hilltopper
Hi all, new user here!

I have an old NEC Versa LX laptop with a PII 366 (MMC2) on a 440bx based mobo. I am trying to upgrade to PIII 600 (MMC2). The module fits just fine, it looks exactly like the old one. The problem is that whenever I boot i just get beeps. I think it has to do with the bios not allowing 100mhz fsb. I know that NEC only officially supports PII CPUs, but my understanding is that the volatge and pinout on the MMC2s are the same. I am running the latest bios (releaseed in 2001) and would appreciate any help or suggestions. Thanks in advance.

EDIT: I noticed that the LXi appears to use the same chipset as the LX and supports PIII MMC2 modules. The only difference seems to be the video card. Should I be able to flash an LX into an LXi?

Posted: Wed Sep 27, 2006 7:22 am
by edwin
the same chipset but there more difference than the video card. The power circuitry around the CPU and chipset is different. The LX bios cannot handle the 600 for a reason..

Posted: Sat Sep 30, 2006 4:38 am
by hilltopper
First off, thanks for the reply! :D

So I guess that means I am out of luck tryin gto use the CPU. Is there anyway I can control the FSB with the CPU I've got. I do not care so much about overclocking the CPU as I do utilizing the full speed of my RAM, which is currently being forced to 66mhz.

Posted: Sun Oct 01, 2006 7:10 am
by edwin
I think you CAN fit a 400MHz CPU, that one can be fitted in the LX and runs 100MHz on the outside.