FS: IBM PS/2 Model 70-386 (25 mhz) procesor boards

From: Russ Blakeman <rhblake_at_bigfoot.com>
Date: Sun Feb 21 10:45:21 1999

Lawrence Walker wrote:

> 16 mhz sounds a bit strange for an 8570, I thought they only came in 20 and 25
> mhz models. You might be wise to pick up Russ's board. The 25mhz model is
> remarikably fast for a PS2 especially with the 387 co-processor.
> You can get the battery in most camera shops. You want CR-P2 or ,BR-P2
> from Panasonic, Varta, Sony, or DL 223A from Duracell. 6v. -lithium.

Nope, there is a 16, 20 and 25 mhz version, there are also small and large board
versions of the 16 and 20. The boards I have are the processor section of the
entire mainboard and will not work in any machine other than the 25 mhz version.
The boards are also useful if someone needs a 25 mhz processor chip.

You're right on the speed relative to the fact that it's only a 25 mhz 386DX
though. These keep up with many of the low and midrange 486's, when the slower mca
drives are removed and another type installed. The 80 series 25 mhz is/can be much
faster especially with SCSI in it.

The battery for the 50 through 80 series that clips in is a photo battery and I
usually find them at Walmart and Kmart way cheaper than computer suppliers or
camera shops.
Received on Sun Feb 21 1999 - 10:45:21 GMT