1.86GHz 533 2M processor in an R51

[Smokestoomuch]

I have questions...

I placed a 1.86 GHz 533 2M chip in an R51 board. It does work but it's only showing up in the bios as a 1.4 GHz chip.

#1) Is the chip defective or did the chip dumb down because the R51 can't do the 533 part.
#2) Is there any way to overclock it to spec?
#3) What Thinkpad machines used 533 chips?

[RealBlackStuff]

Messing about with underclocking/overclocking/pinmods might get it to run, but the R51 is made with FSB 400.
Here's a link: http://forum.thinkpads.com/viewtopic.php?t=52690

T43/R52/X41 machines run with FSB 533.

[ajkula66]

You need a pinmod on that chip. Nothing else will get it up to speed AFAIK.

Apart from what RBS stated above, Z60m and Z60t were also using 533 MHz Dothan-core CPUs.

[Smokestoomuch]

Can't seem to find that pinmod discussion on this forum. I'm all for cutting pins to get it to work. It's otherwisw garbage, Got any handy links?

[ajkula66]

Here you go:

http://forum.thinkpads.com/viewtopic.php?t=52690