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Mobo processor support

Posted on 2003-11-04
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Last Modified: 2010-04-27
Hi,

I'm getting a new mobo, Abit IC7 and the problem is that I don't know if it supports my old 100MHz BUS P4 1,7GHz (Williamette). I checked with Abit pages and the mobo should support 100MHz BUS processors but I also heard from someone that this only applies to the Northwood core. The official test also confirms that, no Williamette processors were tested and passed, only Northwood. What should I do? Thx

Skull
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Question by:Skull
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chicagoan earned 125 total points
ID: 9678276
Intel recommends the new power design VRD10 for 875P boards, and ABIT IC7 series follow this design guideline. It supports the CPU core voltage from 0.8375 to 1.6 V; therefore, if an old 400 FSB P4 or Celeron processor with CPU core voltage 1.75V is installed onto a IC7 series board, the board will not provide such high core voltage and the CPU will malfunction. That's the reason why Willamette and old Celeron processors are incompatible with Intel 875P boards. The 400 FSB processors which could be used on IC7 series boards are Northwood P4 (512K L2) and Celeron 2G (128K L2, 1.525/1.530 V) and faster.

   
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by:chicagoan
ID: 9680187
I know that wasn't what you wanted to hear but did it answer your question?
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by:Skull
ID: 9682866
Well not really but it was very helpful. (read) I also checked FAQ and the problem lies in the mobo, their new "processor recognizer" can't determine right processor voltage for Williamette core. (yeah it was "accidental" mistake, sure... they will do everything to make you buy a new product)

So I came to the idea, if I could boot into bios with some Northwood processor and then set manually voltage level I shoud bypass automatic detection. It just might work. Only the problem is that I don't know what is the max voltage that mobo can support. On the Abit pages I found nothing but you told me 1,6V. Are you sure? 100%?
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by:chicagoan
ID: 9683654
That's straight from ABIT and Intel.  1.6V seems the max for the 875P
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by:Skull
ID: 9691112
I think I'll also get a new procsessor then. Thx
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