25 Jul
2004
25 Jul
'04
10:49 a.m.
Last Sunday 25 July 2004 03:53, Rick B was like:
>I think I might read it now. I'm a bit
confused as to why my system thinks
>it's running a 896MHz CPU, But so far there's no overt signs that it
isn't
>happy, so I'll prod it a bit and see ;-)
Yeah that's close enough to 900mhz for me. Some
cpu's are noted as being
good overclockers, but, hell, that's a free 50% overclock! The new sweet
spot for OCer's is the mobile athlon 2500/2600 (~$90US), out of the box
they are ~1800 to 1900mhz and are easily hitting 2500mhz on air cooling
with just a little extra voltage. The Pentium 2.4b's were easily hitting
3Ghz.
From what I've just read it seems the Celeron
Coppermines may not be rated
performance-wise, but they overclock to 900MHz like it
was a perfectly
natural thing to do. If my clock ratio is fixed to 9x, this would explain.
It's running a little warmer than at 66.8MHz x 8 = 566, (? clock ratio) but
nothing you could cook on. I've installed cpuburn to my HD, really I want to
run it from a floppy, like memtest86. Just in case ;-)
AFAICT, so long as I keep it cool enough, it could well be stable at this
setting. TBH I'd say it's actually performing like a well tuned 600. Which is
what I want. We will see :-] I think it helps that I'm using harmonic ratios
based on the recommended defaults.
How hot is too hot? I've got my warning level set to 50deg in the BIOS and I
still don't think I'm running under 40. It's hard to tell without rebooting,
unfortunately although I have both the hardware and software for i2c & hwmon
they're not talking at present. Again, it's something I never really bothered
with before. Most of the heat is coming off the power supply.
What started out as an idle comment has turned into a bit of a journey of
discovery! Thanks for all the comments and suggestions.
cheers
tim hall