Overclocking Celeron366

[Maverick]

I've got an Celeron366. It runs at 458MHz(5.5x83.3), but i can't change the Multiplier.
Is there a Pin which sets the frequency multiple like the B21 for the external clock-rate?

[ZX1100]

No! There is no way to change it. But be glad you got it run at 458! You can try 550
with the 100 Mhz buss? Good Luck and be carefull. Hope that helps. Jim

[Pat L]

If you got PC100 SDRAM, and your MB supports the 100mhz FSB speed, go for 550mhz. You may have to up the voltage a bit from the standard 2.0v (to 2.05, 2.1 or 2.2v) to get it running "stable".

Ideally, you'd want to be using a MB like the BH6 or BX6-2 Slot 1 (CMOS configurable speed & voltage settings), and either a SECC (Slot 1) type 366 Celery, or Celery PPGA to Slot 1 adapter board.

I'd really like to know how reliablely the 366 would O/C to 550 in that configuration... (could be the new O/Cer's dream config).

[Aris]

Aww, see here is why I am dissapointed at the new Abit BX6 mobo. 83MHz can be divided into a decent PCI bus speed setting. And the jump from 83 to 100 MHz is TOO BIG. 90MHz is what's needed. You could set the PCI bus to 30 and then you'd have 500MHz. The Celeron 400 could try for 540MHz. The odds of reaching 500 are better than 550. And 540 is realistic compared to 600.

[Roy]

Not quite correct. The BX6-2 provides 1/3x100 PCI Bus for a perfect 33MHz!

Few C333s make it to 500 with any stability. 550 is not likely, even packed in dry ice. A liquid nitrogen bath might work !

[Aris]

100 is OK, 83 is the lousy one.

I never said 540 was easy, just easier than 600.

[Missing the point]

so the Multiplier is locked on all 366's?

[oxOGradiusOxo]

With my Abit BM6, I've got my Celeron 366 running cool at 550 at 2.0v (Global WinFDP32 heatsink/fan) It's been stable ever since the day I bought it (from Ebay) The best thing is that, I had a Celeron 433 in my system when I bought the 366. I sold the 433 for the same price as I paid for the 366, and now I'm running 550mhz.

One step foward, one step back

[oblivion]

Some of these guys are wrong......almost every celeron 366(socket 370),can hit 550 without a problem............and almost all of the late model socket 370 333s can also hit 500-550................................

[Wilan Wong]

Are you sure that all Celeron 366 can be o/c to 550? So the Celeron 366 is the best p/c cpu of the celeron's?

[oblivion]

About 90% of all socket 370 366 celerons can be OCed to 550............and I would say about 98% of all the later produced 366's can hit 550...........I know a guy that seels them on eBay,and he has told me that out of 300 of the later produced 366's all of them hit 550............yes the 366 is the best celeron that is out rught now......because of its multiplier,and the celerons average 550ish speed limit....

Wait a week or two,then the new celerons will be much better OCers...........I would give my vote for the soon coming celeron 566...........it will be able to hit 850,and it will be very inexpensive too.(about 110$)

[wyvrn]

Thanks for the tip Oblivion. Long live the celeron!

[alpha]

How much does this guy charge for the cpus and is he reputable? I'm looking for a C366 soon...

[mrdisco]

Most PPGA Celeron 366's will give good OC results. Week 35 was a particularly good week for these chips, as most of these will hit 550 with very little effort (default voltage with no special cooling).

Find out the numbers under the chip before you buy it. Look for a lot number that looks like:

L935XXXX-XXXX

L = Malaysia
9 = year 1999
35 = week 35

Other weeks have varying success rates. Check the CPU database at http://www.overclockers.com/ for details.

The CPUIDs for these chips are SL36C (PPGA 366 OEM) and SL35S (PPGA 366 retail).