On Wednesday 22 May 2002 08:41 am, K Montgomery wrote:
> Civileme,
>
> Problem is now solved. I dropped my clock rate back to normal
> (350, <sniff>) and I got past the hanging point. Then I think I
> got as far as selecting the security level, and the fsck of my
> Linux partitions kept giving a "code 4 or signal 0" error (that may
> not be exact, sorry again).
Well, FWIW, I started to reply to your post, then saw Civileme had
already suggested setting the system back to default. That's always
the first thing to do when you have problems on an oc'd system. I
don't believe your problem was overclocking per se, but I suspect it
was due to bad overclocking. By bad oc'ing, I mean upping the FSB to
the point of getting the PCI bus all harddrives run on, way out'a
spec. IOW's 3.5x126 (442mhz) is a terrible oc, the PCI is then 126/3
or 42mhz, and drive corruption is inevitable, probly takin the video
card with it (agp or pci).
The only good oc for a PII 350 is to up the FSB all the way to 133
mhz. That gives you 3.5x133 == 467 mhz. The clock generator on the
mobo will then switch from 100/3 to 133/4, both which equal 33 mhz
for the PCI bus, and right on spec. Same for the AGP (which runs on
PCI). I suspect you were usin a FSB somewhere less than 133, but
substantially over 112, and your PCI was consequently way off spec.
Fsck's up all kind's of stuff, but mainly drives, IDE, SCSI, or CD.
SCSI drives, Maxtor, Seagate, and Fujitsu are the least tolerant.
Probly couldn't even stand 112 (37mhz PCI bus).
So, make a memtest86 floppy, set the FSB to 133, and boot
memtest86, from floppy, not harddrive. If your ram will do 133mhz you
should be fine. Set it to 3-3-3, if memtest86 returns no errors then
you can try Cas2 (2-3-3). A quality mobo is a must, as is a good
heatsink/fan on the cpu. The PII was all the same core (Deschutes)
from 333 thru 450 mhz. If you've got a decent 350 it should do 467
without complaint. Anything less than 467, and over 392, you'll have
bad problems. Mostly true for Intel chipset boards (BX), VIA chipset
boards allow for switching to a 1/4 PCI divider at 126 to 133+ FSB.
The main idea is to keep your PCI bus within a few mhz of 33.
If all the above is about as clear as mud, consider not oc'ing ;)
--
Tom Brinkman Corpus Christi, Texas
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