Thema: Make ordinary memory look like IBM´s Datum: 29.12.97 16:47:24 From: morten@unidhp1.uni-c.dk (Morten Kristensen) To: peterwendt@aol.com Hi, I have a ps/2-76i. A few months ago I realized that I needed more memory. So I asked around for 2 pcs. IBM 16MB parity modules. But they were way to expensive for me, so I took a chance and bought two ordinary Texas Inst. 16Mb 60ns true parity sims. Of course they didn't work, but then I remembered seeing the scheme of how PS/2 identify sim-memory (on one of your pages) pin 67,68,69,70. I then soldered pin 67 and 70 *) to ground (pin72) (making it a 16MB 70ns parity) and viola I had two IBM compatible parity modules, for less than half the price! It have been working perfectly for two weeks now running Win95. It might work with other machines/modules !!?? Hope you can use this on your webpages. -- Morten Kristensen; mailto:morten@unidhp1.uni-c.dk Phone +45 39565554 Mobil +45 40865554*) I think he made a mistake here: 16MB/70ns Parity is 67+69 tied to 72 (Peter)
|
Back to the Article | |
Visit my Homepage |
© 1997 by Peter H. Wendt / pw-software production