Unable to overclock?

[Logain]

Hi, I'm having a somewhat bizarre problem...

I've had a 633 CeleronII that would clock to 874 (9.5x92) at 1.85v, I was planning on working my way up to 950 eventually...

Now, for some reason it will not boot past the rated speed. (I take that back, it'll peak around 70 fsb) I feel I have adequate cooling, a FOP38 and ASII, on idle it would sit at about 32c at load about 40, so I would rule out overheating. Is this uncommon, or does anyone think after time I'd be able to at least get back to 874?

Also, I thought I should tack on that I've cleared the cmos, updated the bios, and this is on a abit vh6-II board.

Any help greatly appreciated!

[Newbie_Doo]

Those temps seem high for a Celly2 at idle. I would check the HSF to make sure it is seated properly, with a THIN layer of ASII. My Celeron2 got unstable at 39C, so it doesn't surprise me that you are having issues with those temps. Double-check that the HSF is seated correctly and try again.

Anthony

PS-Welcome to the Forum!

[Logain]

Yeah, that occured to me too, I followed the instructions on AS's site about proper coating, etc...I'm considering getting a spacer to see if that may help my problem with the heatsink actually rocking on the core if I don't set it right. I'm not completely sure it's a heating issue...it would be stable as a rock before, now with a cold boot I can't get the same speed...

Odd.

[Sohryu Asuka Langley]

Take off that heatsink, fan, bend that clip so it sits a lot harder on the cpu. not sure if this has worked for everyone but i lapped my heatsink silky smooth then got some soft metal sponge stuff (name?) and rubbed it on the bottom... its still smooth but seeming as the heatsink now gets too hot for my liking, im guessing theres more contact.

[Logain]

Yeah, I wasn't satisfied with the original clip, so I bent up another one to my liking. Nice and firm :)

I'm positive now that it's not a heating issue... My above average temps were due to bad case ventilation (namely a minute gap between my power supply and fan) which when fixed dropped my cpu temp to 26c.

Immediate reboot and adjust the fsb and voltage, still nothing. I'll chalk it up to a bad chip, and have it set to 633 til I can get a p3 or something.

Thanks for your suggestions, though!

[outhouse]

Have you tried turning your memory down in BIOS just to make sure that thats not it a cas 2 setting on cas 3 ram could cause this may not be your problem but its worth a shot. I have the same MB and it had good memory settings.

[Logain]

Hm...I looked at a few settings at the ram, everything appears to be in order...like I said it clocked to the above perfectly and now, nothing. Guess I have bad karma I'm paying for :) In the meantime, I'll save up for a chip and I'll just run this at 633 at a higher voltage to see what I can get out of it later.

Thanks again for your suggestions

[batboy]

A similar thing happened to me once. It turned out to be too many Windows registry errors. I reformatted my harddrive and did a clean Windows install. Suddenly, I was back in business and my world was wonderful again.

[Logain]

Whelp, I've been playing with it off and on all day...

It clocks to 83mhz on default voltage (far from stable, I expect because it's so far out of spec) and when I try to clock that 1 mhz further, which conviently is when my dividers kick in, nothing at any voltage (my board only does 1.9) Sooo :)

I've considered reformatting, and putting ghost to work except would it really be a windows problem if it won't even post?

[William]

Logain (May 30, 2001 07:51 p.m.):
Whelp, I've been playing with it off and on all day...

It clocks to 83mhz on default voltage (far from stable, I expect because it's so far out of spec) and when I try to clock that 1 mhz further, which conviently is when my dividers kick in, nothing at any voltage (my board only does 1.9) Sooo :)

I've considered reformatting, and putting ghost to work except would it really be a windows problem if it won't even post?

hmm, I run on an 83mhz bus with no problems at all. You may want to try a nonconductive shim, my retail pos hsf was sitting sorda like this / and the shim now has it sitting like this - . It won't do a gig, yet, but hopefully will when I finally get a decent HSF for it.

[Newbie_Doo]

Logain (May 30, 2001 07:51 p.m.):
Whelp, I've been playing with it off and on all day...

It clocks to 83mhz on default voltage (far from stable, I expect because it's so far out of spec) and when I try to clock that 1 mhz further, which conviently is when my dividers kick in, nothing at any voltage (my board only does 1.9) Sooo :)

I've considered reformatting, and putting ghost to work except would it really be a windows problem if it won't even post?

Are you limited to 1.90V due to a percentage factor limitation (ie +10%) like the Soyo boards, or is that just the max voltage that your board lists?

If your CPU was wired for a higher default voltage, do you think it will help? Will your board provide 1.95-2.05V if that is what the chip asked for? It may be worth a try to wire the CPU for more voltage.

[Logain]

I was reading up on the wire trick and I supposed thats an option, albeit one that makes me leary...I'm not even sure that will work, because I've gotten it to post at 83 mhz at default voltage and it won't even post at 1.9? I wondered if it may be the mobo, as I've checked everything else. (Even flashed the bios to a few different versions) It wouldn't really bother me except I got the chip about a week or two ago and the majority of people on the database get 950.

Guess I can't complain too much about a 633 chip doing 633 :)

[ken257]

dunno260 (May 31, 2001 03:10 a.m.):
[quote][b]hmm, I run on an 83mhz bus with no problems at all. You may want to try a nonconductive shim, my retail pos hsf was sitting sorda like this / and the shim now has it sitting like this - . It won't do a gig, yet, but hopefully will when I finally get a decent HSF for it.

Dunno you may want to check the clip on that Intel HSF. I just built a system for my uncle with a boxed 866eb. When I put the stock Intel HSF on it didn't want to sit straight. Upon insection I found that the clip was on the wrong way and was not putting preasure directly on top of the core. I took the fan off, turned the clip around and it now sits perfectly flat.

[Logain]

Ok, I think I may have narrowed it down to my motherboard...I popped in a CellyII 700 I had laying around, same thing. clock to 83mhz (Get major windows problems, just like the 633. Assuming my hard drive can't cope with it) And when I try to turn to 84, nothing. Is it likely that my motherboard burned out, or in cases like this it either works or it doesn't? I don't have a native 100 or 133 mhz to test, and the store I bought it from are pricks about such things. (beware DIT) I would really welcome someones opinion about the board. It's a Vh6-II with a SB live value, Radeon LE, Realtek nic card, 256 ram (No name, albeit tested vigorously)

[outhouse]

For me this MB has been stable and solid and it takes a lickin ive had it in and out so many times i cant count. if you have any questions be specific and i'll give it my best shot maybe you ended up with a bad one or maybe a little static found its way into one of you onboard chips.

also go to www.rojakpot.com and check on the bios article i learned allot from that. [make sure your getting the most out of your BIOS settings] also take out all of you cards and start with a bare bones system just to make sure its not something you would not exspect i dought it but it's worth a try before ditching the MB also just for kicks turn the memory down to minus clock speed and see if the problem occurs then too.

good luck

[Logain]

Well, I have to say I've been very satisfied with this board as well, stable as a rock. I thought it was the board since both those celerons did not want to do 84mhz, but to be certain I've 'borrowed' a friends p3 1ghz and it posted with no problem, so it looks like I just have very bad luck and got 2 celerons that will only do little better than stock speed.