Problems overclocking celery 566

[Boogeyman]

I got a celery 566 a while back and played with it for a while at 850. It will boot at 850 at 1.6 volts. However, it wasn't very stable. So I decided to download prime 95 and do some testing. I figured that I should have some sort of baseline so I decided to run it at 566 in the torture test. Well it will not even run the torture test for 6 hours without crashing at default speed. Any hints?

System Specs
Celeron2 566
Abit BH6 NV bios
MX300
Voodoo3 3500
WD 27? gig
win 98--about 9 months on this install

Thanks

 

[Nick Stone]

Sounds normal. Voltage, probably about 1.7 --even up to 1.85 if you have to. Can you get voltages above 1.7?

 

[Bartman39]

Sounds like a winblows stability problem, maybe a heatsink contact problem also. More than likely its W98 after it gets crashed enough it will do funky things and not want to run stable at any speed... You might want to up the voltage on the 566 to 1.65 or better to run stable at 850. I run a 533a at 1.75 to keep it stable at 896mhz it will run 800 at 1.5 but if ya got run it...


uh that .02 thing...

 

[Boogeyman]

I appreciate the replies but...you keep saying bump the voltage when I am telling you it won't run stable at 566. What is the default voltage on these puppies? I thought it was like 1.5. So I guess my question is why can't I run prime 95 even at 566?

 

[Nick Stone]

Boogeyman
Sorry I misread. I agree with you that it ought to be able to run just about anything at 566 even at default voltage. Since this is a 9 month old install, I assume that you only replaced the CPU for this upgrade and pretty much left everything else alone? Would your old rig (CPU?) run prime 95 OK? If you didn't try, how about putting your old CPU back in. Then see if you can run prime 95 OK.

 

[Boogeyman]

I didn't run prime with it but it was fairly stable. I didn't crash nearly as much as mine does now. Of course now I am trying to make it crash so that could be the difference. Maybe tomorrow I will swap them out and see how it goes. Thanks for the input. Oh by the way I was running the 300a@450. You are correct in assuming that I just swapped the cpus. I didn't change anything else.

 

[BuddyHolly]

What type of cooling? Could heat be a factor? If it is not stable at stock speed and everything else worked fine before, points to something aroud the chip...about the only thing you can control is the cooling...

 

[Boogeyman]

It is being cooled with a Golden Orb.

 

[Boogeyman]

Is there a difference between the self test on prime 95 and the torture test? I was just wondering because I decided to run the self test for a change of pace and surprise surprise it is still running this morning after 8 hours. It was crashing in under 6 on the torture test.