On 26 Oct 99, at 21:30, Wayne Harris wrote:
> I just got a PA-2000 FIC motherboard given to me for free (can't
> beat that price) and I am going to use it to replace my tired old
> 486 MHz Motherboard. It came with a Pentium 100 chip. I have a
> Pentium 166, that has the exact same socket, and was trying to use
> it. It wouldn't complete POST, so I re-replaced it with the Pentium
> 100 chip. I then downloaded a copy of the PA-2000 manual from FIC
> and noticed that there were no jumpers for 166 MHz and that it was
> stated in the manual that the highest speed supported on the board
> was 133MHz. I assumed that there were no 166MHz's back in 1995,
> when the manual was written, and that if it was the same socket,
> that I could use the 166MHz anyways. Was this flawed thinking? Will
> it in fact not go above 133MHz? And if it can is there anybody who
> knows where I can download a more recent copy of the manual?
If you navigate around on www.fic.com.tw, there is a link to a U.S.
mirror of their FTP site, ftp.fica.com. From IE5, you can right-
click on the "pa-2000" folder icon and copy it to a folder on your
drive. It will contain zipped .PDF files of the manuals, dated 1997.
Although FIC's website lists this under "Socket 7" boards, the
presence of only 1.5x and 2.0x multipliers (no 2.5x or 3.0x)
indicates that it is actually *almost certainly* really a Socket 5.
Although the layout of the pins is identical, som pins required by a
Socket 7 CPU (like the 166, which expects to runs at 2.5x) may not be
connected.
You don't mention MMX, but I think there may have been an MMX
version of the 166 MHz Pentium. MMX CPUs expect a lower voltage to
most of the CPU chip; Socket 5 motherboards supply the same voltage
to all parts of the CPU. If your CPU is intended for lower voltage,
it may be damaged if run in a motherboard that cannot supply so-
called "split" voltage.
David G
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