🚀 go-pugleaf

In article <1gjdjjINNjcq@uniwa.uwa.edu.au> msimmons@ec.uwa.oz.au (Michael Simmons - mgmt_staff) writes:
>Isn't there a DX2, Overdrive ,whatever that has the same pinout as the dx33
>I was told by an intel dealer that I can buy a dx2/66 (overdrive ...) and
>plug it straight into my dx33 motherboard.
>The clock doubling is done internal (via a PLL) to the dx2/66 (overdrive etc).
>Hence the motherboard is not required to provided a 66Mhz clock signal?
>Maybe a dx2/66 requires the board manufacture to provided a 33/66Mhz jumper
>where as a overdrive chip does the 33MHz to 66MHz conversion internally.
>I have read somewhere that either the dx2 or the overdrive (?) has an extra
>pin. What signal is on this pin? Is the rest of the pinouts/signals the same?

The OverDrive and the DX2 are the same chip internally...if you buy a system
with the clock doubling technology, you'll get a DX2.  If you upgrade an
existing system, you'll get an OverDrive.  There are some pinout differences,
and there are even two versions of the OverDrive: one for systems with the
expansion processor socket, and one for systems without.  The extra pin on
the ODP (for expansion socket) is called the 'key' pin, presumeably to disable
the existing processor.  The ODPR (replacement part) has an identical pinout
to the original DX processor.

				Dennis Marer
				dmarer@td2cad.intel.com


P.S. I just installed an OverDrive in my 33MHz system...wheeeeeeeeee!

-- Not speaking for Intel.