detert@lognet2.arpa (CMS David K. Detert) (08/08/88)
<Line eaters sure do have heavy appetites!> I recently installed a Spirit Technologies IN-1000 memory expansion board (0k) in my Amy 1000. I thought I had sixteen 256k x 1 chips I could install to give me another 1/2 meg until prices come down. However, my chips (originally used for the Amazing Computing internal hack) are 18 pin and the Spirit board has 16 pin sockets. Therefore, I appear to be in the market for some chips. The Spirit documentation says to get 256k x 1 DRAMS. Spped can be either 120 or 150 ns and 16 chips are needed for each bank (512k). Since I've already found (the hard way) that there ARE differences in 256k chips, would anyone be kind enough to confirm that I can order any 256k x 1 chips, as long as I specify 16 pins and 120 or 150 ns speed? Also, ads in Computer Shopper suggest prices are in the $10-$13 range. However, the ads don't indicate the number of pins, just the speed. Can anyone recommend a cheaper/good source? As always, thanks in advance for any help. CMSgt Dave Detert ARPANet: detert<at>lognet2.arpa <No .signature yet, but the standard - Hear no evil, See no evil, Speak no evil applies!>
tomb@hplsla.HP.COM ( Tom Bruhns) (08/10/88)
> > chips (originally used for the Amazing Computing internal hack) are 18 > pin and the Spirit board has 16 pin sockets. Therefore, I appear to be > in the market for some chips. > > The Spirit documentation says to get 256k x 1 DRAMS. Spped can be either > 120 or 150 ns and 16 chips are needed for each bank (512k). Since I've > already found (the hard way) that there ARE differences in 256k chips, > would anyone be kind enough to confirm that I can order any 256k x 1 chips, > as long as I specify 16 pins and 120 or 150 ns speed? You probably have 18-pin 64k x 4 (=256k bit) chips, and need 16-pin 256k x 1 chips. I believe the 16-pin package is quite standard for 256k x 1's in a standard dip package. > > Also, ads in Computer Shopper suggest prices are in the $10-$13 range. > However, the ads don't indicate the number of pins, just the speed. Can > anyone recommend a cheaper/good source? I have some chips removed from boards (or boards w/mounted chips) I would like to dispose of at about half the upper end of the range you mention. They are 256k x 1, 150 nS. Please contact me at home address below. > > CMSgt Dave Detert ARPANet: detert<at>lognet2.arpa > ---------- Tom Bruhns 4908 Harbor Ln Everett, WA 98203 (206)348-3877 (6-10 PM PDT ONLY, please)