Is my Celeron II 566 a good cpu for OCing?

[Zach]

Hello. Here is the information I found printed on the chip:

intel®
i(m)© '00
celeron TM MALAY
566/128/66/1.5V
L017A121-1341 SL46T

Can anyone decipher what that last line means?

Anyway, the 8.5 multiplier is probably locked, so to OC I'd guess I'd have to up the FSB. How much can this chip take and be stable?

I'd like to hear from others who have OCed this chip, and what mobo, settings, and cooling they used. Any help would be great.

If it helps you help me, the system would also have a Voodoo 3 3000 PCI, a couple sticks of PC100 SDRAM (a 64 and a 32 MB), SMC 1211tx LAN card, a SC-140 CD-ROM, a Plexwriter 12/10/32A, and a Maxtor Diamond Max Plus 60 GB hard drive.

Thanks,

Zach Schoen

[Tim-]

That 566 is one of the easiest of all chips to overclock. Nearly any motherboard can run it successfully. I have used the Abit BM6, ZM6, and VH6 all with a minimum of 850MHz and some at 890 MHz. Many folks have gone much higher, but these were work machines and I didn't spend much time trying to go higher.

[zhenya]

You should have great luck overclocking that chip--check out the cpu database on this site to see what other people have accomplished with it and with what setup. Some of the more popular boards are made by Abit and Soyo, they both give you lots of FSB options, as well as the ability to adjust voltage through the bios. If you are serious about overclocking it, you may want to consider a slot 1 board with a slotket that allows you to adjust the voltage via jumpers on the slotket. Good luck!

[Mr B]

What you've got there is a cB0 stepping Celeron II 566, one of the best o/cing Celerons going.

That last line deciphers as;
L= manufacuring plant (Malaysia) 0 = year ('00) 17 = week of "0" chip made (17th week of 2000) A121-1341 = has to do with batch numbers and such SL46T = "S" code (that each variant/stepping is coded by)

I'll agree, the best way to go is to get a slot 1 board and mount the chip in a coppermine (FC-PGA) compatable slocket adapter (s370 to slot1).

There's a LOT of good boards out the that will run this chip. Abit BE6 II is probably the most popular.

A couple good slockets; Soltek SL02A++, Abit !!!, MSI MASTER 2.0. Asus and Iwill make good ones as well. These will allow you to raise the voltage from 1.5, which will give you more stability. HOWEVER, too much is bad. It's recommended that you don;t raise the voltage much further than 15% over default. the most I'd run would be about 1.9v, max for this chip.

All Celerons since the early PPGA chips have been multiplier locked by intel. the way to overclock these, then, is to raise the FSB and voltage until stability suffers, then back off until you are stable. Trial and error will find where each individual chip runs best, as each individual chip o/c's differently. for example, I have two Celeron 600's, almost identical chips, built six weeks apart at the same plant last year ('00).

One will run up to 945 MHz at 1.9v, and no more, no matter how many volts I put through it.

The other runs up to 1053 at 2.05v.

there's no guarrantees in this.....you might have a chip that will push 850 + (100 FSB) or more, and it might not go further than 705. You won't know until you try.

Also, get a GOOD heatsink/fan. the intel unit is good for default cooling. The "Gorb" is good to around 100 FSB or so, anything over that and you will want better. A couple of good ones here would be the Alpha PEP66T and GlobalWin FOP-38.

Use a good quality thermal compound between the chip and sink. Arctic Silver is the best here. Hands down.

Good luck o/cing the Celley. Hope I answered your original question.

Mr B

[Mr B]

BTW....welcome to overclockers.com, Zach.

Mr B

[The Faceless Rebel]

Hi there, I'm new too and I've been lurking for a bit.

Just to share my experience, my Celeron 566 is an SL46T cB0 stepping and it runs at 850/100 just fine with the 'Gorb'.

SOMEBODY SET UP ME THE GORB!! :D

Now i'm going for 1ghz (wish me lots of luck), so I've ordered an ALPHA PEP66T with the loud Delta fan. Since I've gotten it to POST at 980 and start booting into Windows before crashing with 'Gorb', I think I have a good chance at 1ghz with better cooling...

TAKE OFF EVERY 'PEP'!!
YOU KNOW WHAT YOU DOING!!
MOVE 'PEP'.
FOR GREAT COOLING.

Sorry bout the AYB reference...I couldn't resist :D

[Mr B]

When you get the Alpha in, set it up w/ Arctic Silver.

I did the same, and with the additional cooling, I was able to push another 1.5 MHz of FSB.

For you that equals 12.75 MHz clock speed. Puts you right square on the doorstep. You have a pretty good shot at it.

Mr B

[batboy]

Up until Friday, I was running a C-566 cB0 chip in an Abit SE6 mobo that would do 952 rock stable. I could even benchmark 978, but the 1 gig eluded me. You have a 99% chance of hitting at least 850 MHz. Awesome chip!

[DocClock aka MadClocker]

I found a cellie 566 doing 1285mhz...I don't quite understand the ultraboard's protocols but I will try to paste the url..you might have t copy and paste it

http://son.t-next.com/wcpuid/wcpuid.html

look for #36