Despite the fact the the original value at 0x20 was not the same as that reported by everyone here, I took a chance and it worked.alintolea1 wrote: Hey swssnyder, I have the same problem here, one of the two thinkpads 600e i'm trying to upgrade is an "old" model, a 55U, with 46H bios.
Did you manage to find the corect bit in the bios that needs to be changed?
The standard advice here is to change values from 0x02 to 0x0A at location 0x20. Well, my original value at that location was 0x20, not 0x02. After clearing CMOS a few time in the course of updating my CPU, the value at that same location was 0x00. Hmm... I took a chance and set bit 3 anyway, leaving the final value of 0x08.
That worked. The BIOS now boots with the L2 cache on my P3/500 disabled, then I later re-enable it with a Linux device driver. No BIOS warnings are seen at boot time. Again, this is on a 2645-57U.