HELP PLZ!!! I just cant get my 700MHZ @875+

[rcueto]

Plz I really need help, I've been trying everything that has to do with tweaking, my cooling is not the best but my CPU wont go over 48. Although I think its not a heat problem, because I've tried different clock rates, and voltages, heat has raised up to 50 at most, and it wont crash.

I have a PIII @ 700 cb0(supposed to support up to 1GHZ, with an ASUS Cusl2-C and 128 PC133Ram "My bios says its just PC100 running with CAS3 "I cant run at CAS2 it will start making weird sound at boot", weird" Win98SE

I have been able to run at 848 perfectly steady, at 875 it too unsteady, and when I clock the FSB to 133:133:33 it will boot just sometimes, and when it boots most of the times it crashes while enterning to windows.

PLZ help
Thx in advance

[DeathScyth_Hell]

it might be your chip...the cb0 doesn't clock that well...but they still do...try getting a new fan before trying anything...the ram and mobo sounds good...cuz i have the same one,...haha...

One question...how do you change cas2 in the bios??...

[Propilot]

Originally posted by DeathScyth_Hell
[B]it might be your chip...the cb0 doesn't clock that well...[B]

Speak for yourself :)

Get better cooling and some high quality PC133 ram. Just the ram alone should let you go quite abit (pun) higher.

[The Doors]

Hi rcueto, welcome to the Forum,
you need of a better heatsink and a very thin layer of thermal paste on the Cpu Core, coz the chip temp must be around 40C, max 45 degree C. Use the most conservative mem settings and don't forget to rise a little the VCore (Cpu voltage), not over the 15% of the rated value.

I hope it helps you ;)

[rcueto]

I have a Cooler Master H/F (DP4-4G11), Its supposed to handle even more heat, so again, I don't really believe thats the reason I just changed my Thermal Paste to a new one and temps went down from 50 to 46.

I've run the comp without the case cover and the temp drops just one degree to 45, so I dont believe it case cooling either.

I change my Cas settings in the Advance menu - Chip Config - And there I find all of the Cas options together with the SDRam driving modes.

[funnyperson1]

try running with case off.....your temps should be lower then, try ocing more.....

[batboy]

Yes, one of the problems is cooling. Like The Doors said, try to get your CPU load temps down to 40 degrees. The higher you try to overclock those P-III CPUs, the more intolerant they are about heat. Sounds like your RAM is cheap generic stuff too.

[Bmxpunk86pl]

yeah get better cooling and if that doest work then try a higher voltage

[Jon]

I've had a P3 700 cB0 for almost a year that won't run stable past 840 so I know how you feel.

I've run up to 2.05V through and used the best air coolers available on it (ThermoEngine and SK6 w/Deltas and a Millenium Glaciator) to no avail.

It would run at 933 on my VP6 (only board out of 3 it would do this on) for about 30 minutes then freeze when running SETI even though temps were fine. It's just a dud chip and I would prematurely assume yours is too.

I won't say the cB0 is a bad stepping as there are plenty of successes to prove that theory wrong, however, it isn't near the best stepping chip to overclock with.

Could try running 1.90V-1.95V through it if possible and burn the thing in at the highest FSB you can run stable at, but make sure cooling is up to par. This also won't guarantee any better results no matter how long you do it for.

Good luck!

EDIT:

Forgot to make the comment about your temps. They are too high. I've got a total of 6 P3 processors and none of them are allowed over 40C under full load. 50+C is quite unacceptable...not really dangerous but definately not good for overclocking.

Cooling is THE MOST IMPORTANT aspect in overclocking and often overlooked by those just wanting more, more, more.

[Tin_omen]

whats this about cBo steppings being bad?

my 700e will run up to 1008mhz at 1.65 volts,i dont keep it there because my geforce 3 cant take the high agp speed for some reason though.


as was mentioned though you have one of two problems 1.st and most likely is heat,your temps should be between 28-40c for best results i know my cpu didnt perform well or reliably when it heated up past 45c.

2. you just got a bad chip,it happens.

[o770]

i cant personally beleive it could be any temperature issue in this case. it sounds like your sdram is stucking the system. try to set the CPU/DRAM divisor (4/3) so you get the FSB 133MHz with dram working in 100MHz (133:100:33). if you ever tried overclocked frequencies for the PCI it could happen any card you have be stucking in spite of the dram or anything else - but its less probable. keep 100MHz for the DRAM working with the divisors.
good luck.

[stompah]

I have even have my p700 cBO at 2.3v and it still wouldnt load 133fsb. The lower the speed the more successful the boot obviously. My burn-in temps at that voltage was stable at 46c (remember 2.3v). Granted thats an outrageously high voltage but it did boot to 133fsb one time stable at 1.9v. I then tried at 135-booted. then 140fsb lots of registry errors.
then I made the mistake of modding and Alpha pal6035. that cracked the corner ever so slightly.

Anyway I cannot tell you if its the CPU or something else in your comp. But I can tell you that I hit 135fsb with a short 5 minutes of burn-in. It ran stable.