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OC p3 667

Posted on 2002-05-04
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Last Modified: 2010-04-26
I'm on p3 667 running at 5.0 x 133mhz.  I'm wondering if I could run at 5.0 x 140mhz with 128mb x 2 at pc133?  

at the moment i'm running at 700 (5x140).  it runs fine but i dont know if problems could occur.  any ideas at all would help thanks.
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Question by:cooljam23
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pjknibbs earned 50 total points
ID: 6990237
Well, potential problems might be:

1) The PC133 memory might not be happy running at 140MHz. Symptoms of this would include random crashes because the value of some of the memory isn't being read properly.
2) Since your FSB is at 140MHz you're actually running your PCI bus at 140/4 = 35MHz, which is out of spec for PCI. Therefore all the cards on the PCI bus have to be able to run at 35MHz.
3) Similarly, the AGP slot will probably be running at 70MHz rather than its rated 66, affecting your graphics card.

However, none of these are too likely to cause a problem in your case because you're overclocking by such a piffling amount. I really don't know why you bothered for a 5% increase in clock speed.
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Author Comment

by:cooljam23
ID: 6990253
Thought I might gain some performance.. hahaha.  oh well i'll put it back since its only 5% increase.

if you dont mind, as if you want more point, please have a look at my other problem.
http://www.experts-exchange.com/jsp/qManageQuestion.jsp?ta=winxp&qid=20297099
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Author Comment

by:cooljam23
ID: 6990271
oh by the way, do you know how to unlock the multiplier on p3 coppermine?
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LVL 12

Expert Comment

by:pjknibbs
ID: 6995800
Unfortunately it isn't possible. Unlike AMD (who use a system of "bridges" on the processor packaging to determine the multiplier), Intel actually write the multiplier to a special area of non-volatile storage on the chip which cannot be rewritten once set--therefore the multiplier is locked solid and cannot be changed.
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