You Motherboards' BIOS doesn't enable the Cache of the 2. CPU at boot-time.
Apply the MTRR-Kernel-Patch (http://www.uk.linux.org/SMP/fix-bios),
and you will be happy again!
I'm building a Linux machine and decided to step up to a 400 MHz PII
instead of a 350 MHz even though the price (of the CPU) went from $334
to $483 . . I feel it will be a good long-term move since I plan to
implement software RAID on an array of Ultra2 SCSIs . . so the extra
'crankage' will be welcome. An even clock multiple of 4x made good
sense to me as well . . I'm putting in 128MB of 8ns ECC.
I have also invested in the Supermicro SC750-A server case . . which
can accomodate up to nine cooling fans . . four of which are for the
HDDs (the four SCSIs in my NT workstation are cooled by the front bay
covers being removed . . letting the air stream over them). This
SC750 is a unit which I can definitly grow into . .
Any suggestions on a Ultra2 SCSI controller (hope we're not getting
too far off topic) . . I have it narrowed down to the Adaptec 2940U2W
or the Symbios 2951U. I know the Adaptec is almost 400 bucks!! but
seems to have more configuration options. Will probably go with
Viking IIs or perhaps even 'cudas.