If you mean to replace the SX in the ZIF socket with the AMD,
then I wouldn't try it, especially without a manual.  The AMD
DX4 is a 3.45 volt cpu and almost all the SX model cpus were 5
volt.  You don't mention the brand of the SX, but an Intel is
certainly a 5 volt.  A ZIF socket identifies the board as a later
model, so you might be able to change the voltage setting.
Other things to quickly identify compatiblity
are type of 32 bit expansion slots.  A board that is all ISA slots,
or has only VESA local bus slots and no ZIF will probably not have
a voltage regulator or a bus clock jumper, so the board is hardwired
via solder to support the cpu it was sold with.  A board with no
72 pin simm sockets will also tend to be soldered rather than
jumpered, so it may accept a DX2 but not a DX4.
If you come across a board with PCI slots and 72 pin simm sockets,
it will most likely support a very wide range of 486 cpus, including
your AMD.
Tom Turak

-----Original Message-----
Sent: Saturday, August 14, 1999 2:41 AM

I recently purchased a AMD DX4 120MHZ processor. My old "project system" has
a 486 SX chip in a ZIF socket. The socket says it is overdrive ready. Will
this AMD chip work in this system. Just wondering. No big deal if it doesn't
I will just build a low end system with this processor for the experience.
Any advice would be greatly appreciated.

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