Overclocked PII-333

[ArnoldLLerch]

Well, I've got this Chaintech Slot 1 board that says it supports up to 450 MHz P-II and Celeron Processors. 75/83/103/112/124/133 MHz system clock speeds for overclocking possibilites. Right now I'm running a Pentium II - 333 with the sytem clock speed set (manually) at 100MHz and a multiplier (in the BIOS) set at 4x. Running smooth and no hangs with just the hugest heat sink you ever saw (came out of a DELL) and a 4" case fan sucking air over it from about an inch and a half away (blowing out of the case) and a 2 incher up front sucking air in. Do I dare push it any higher with this setup or should I get special cooling to go to 450MHz?

ARNi

[Win_98]

Chaintech motherboard are actually very reliable I have one for 5 years and still kicking! Everything still work perfectly fine. I thought it was dead when I flashed the bios but after changing a few setting it was back to normal.

[Barney]

Why not?I run my PII-300 at 540mhz at the moment.With a BAD large heatsink.I have a whole bunch of fans in my computer (7).But I'm not being honest here.My PII-300 is the famous type SL2W8,it has a PII-450 processor core and fast (also PII-450) L2 cache (I think it is 4.4ns).I always have to tell this because otherwise 10 people ask 'huh how the hell did you do that' or 'I don't believe you' http://sysopt.earthweb.com/forum/smile.gif .

I think I know that heatsink you have (maybe I don't).I would try to get some fans on the heatsink (maybe 2 6cm or 8cm fans?) to blow air on it,instead of sucking it away.

Ronald

[Mungla]

Were there any PII-350's that had higher rated cores in them? I have a PII-350 in my NT4 machine and I have been able to get it to overclock easiely to 550mhz. I had to use my main desktop's BE6-II motherboard so I was only able to test the stability and found that it was rock solid. I was using the heatsink that I bought this with, the fins are about 60-70mm long. The fan on it is really dinky, so I just sat a 120mm (110CFM) fan ontop of it for some kickin air flow. After bad experiences with removing PIII cases, I was afraid to remove the PII cover to check the cache speed.

[Barney]

As far as I know 350's don't have higher cores.And aren't very well overclockable.I think it's amazing you got it so high.But you had a huge cooler on it.Btw,I have removed the plastic casing,and when trying to get the metal plate of,I almost killed the processor.I'm just guessing it has the 4.4ns cache,because only few people are able to get it as high as I have it.

Btw,don't you mean you easily got it over 450mhz?Even at a FSB of 150mhz it would have been only 525mhz.It only has a 100mhz FSB core.Or you would have had an unlocked multiplier...

Ronald

[Mungla]

On my first attempt to overclock the PII-350, I got it to run perfectly rock stable at 150fsb, which is 525mhz. Although, after setting up a better cooling method (120MM fan) I was able to get as high as 157fsb which is 549mhz. The BE6-II Rev1.2., motherboard can handle high FSB's rock solid as long as your perif's can handle it. Just for reasons like this, I do not use an AGP video card. Everything in my PCI slots, hard drives, ex., can handle 40mhz PCI clock speed without problems.

[Mungla]

double post

[This message has been edited by Mungla (edited 09-30-2000).]

[Barney]

Well,I guess you weren't wrong http://sysopt.earthweb.com/forum/smile.gif .

That's pretty impressive.

Ronald

[paradox]

Go for it. I'm running a PII 333 @ 450 with an added 4 inch fan. After that my system won't boot.

ABIT BH6 mobo
FSB 100 x 4.5
FSB 103 X 4.5 UNSTABLE

[This message has been edited by paradox (edited 09-30-2000).]

[ArnoldLLerch]

Well, it ran for about a half hour at 400 (100MHz FSB x 4) then, rebooted by itself.
Not having any problems at all at 3.5x (350MHz) for the last two days of always on.
Would adding a fan to the heatsink make it stable enough to run at 400 do you think?

ARNi

[Eli]

A fan on it certainly wouldn't hurt. When it rebooted, was the heatsink hot? If not then an extra fan wouldn't help much, since either you need to up the voltage or there's lousy contact between the processor and it's heatsink.

[alpha]

Actually, I got a bunch o' bad boards from chaintech - I don't like them - my new Jetway seems to be good.