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View Full Version : I understand that Intel locks the Mult. clock but


AmbientFiction
06-30-01, 09:16 AM
Is it posiable to lower the clock so you could run the chip on a slower clock? If so then you could up the FSB even higher right?

Allan Nielsen
06-30-01, 09:57 AM
The chips are multiplier LOCKED, which means you cannot change them - not up, and not down. No ways around this so far, I'm afraid.

AmbientFiction
06-30-01, 10:07 AM
Ohhh well it was at least worth asking

Allan Nielsen
06-30-01, 10:11 AM
It sure was! :)

batboy
06-30-01, 01:03 PM
There is some buzz about some early P-II being partially locked like that, but all Intel processors since then are locked to their stated multiplier.

Allan Nielsen
06-30-01, 02:47 PM
No matter what, I doubt that any of those early P2 systems could handle high FSB's anyway, lol.

JaY_III
06-30-01, 04:26 PM
whar are youtalkign about i hada P2 333 that i could lower the multiplier and 100FSb with tah chip was awsome...
i have even tested it with better ram since (although it is retired now) then and it run on 133FSB just great.
August 98. any chip after from intel has been multiplier locked up, down and anyway to the side you may try :)

Mr B
06-30-01, 09:31 PM
I 'm gonna be doing a little bit of testing w/ a P II 233 soon.... Just picked one up at e-BAY for a PC I'm putting together for my niece.

Unlocked multi on the 233's eh?? Hmmmmm... this could be fun (not fast, but fun).

Mr B

hooziewhatsit
07-01-01, 02:46 AM
yea, I have an unlocked pII 233. I got it up to 333 before I got a celery 366 and put it to 457 :-)

mudguts
07-01-01, 02:51 AM
batboy (Jun 30, 2001 01:03 p.m.):
There is some buzz about some early P-II being partially locked like that, but all Intel processors since then are locked to their stated multiplier.

I remember reading an article a long time ago at Tom's Hardware about a method he used on the Pent 2 and Celerons whereby he "painted" nail polish on specific contacts to defeat the multiplier lock. If somebodys interested , perhaps they can do a search on his site.
tomshardware.com (http://)

SP
07-01-01, 04:58 AM
The earlier Pentium IIs, like the PII-233s, usually aren't locked at all. Some of the later PIIs were locked in such a way that you couldn't use a higher multiplier but a lower multiplier was possible I believe. Those could be unlocked by somehow moving or removing resistors on the little PC board the CPU is soldered onto. I'm sure if you search you may be able to find info on that. All PIIIs and perhaps many of the later PIIs were locked inside the chip and there is absolutely nothing you can do about it. Once those chips were locked by intel they were locked for good by burning out parts of the chip. So, those chips are locked for their entire lifetime and there is no going back. Of course there are what's called engineering samples that are produced without being locked for testing purposes. Those will be marked "Intel Confidentail" and weren't mean to be released to the general public, but ocassionally a few made it through.

The trick you heard about that involved painting pins with nail polish was not unlocking the multiplier. That involved the Bsel pins which determine the FSB of the CPU.