gilgalad@dip.eecs.umich.edu (Ralph Seguin) (05/02/90)
Howdy. Well, I just went out and purchased some ZIP rams. Now I have run into a problem. The ZIPs that I got have a pin missing in every chip I don't mean missing as in broken, it just seems as though they are different somehow than the ones that are already on my 2630. Do you know whether or not the NEC ZIPs on the 2630 have a dummy pin (or a ground), or do you know what the deal is with my ZIPs? Also, would it be alright to solder ZIP sockets? If so, where can I get good (hopefully cheap), ZIP sockets? I saw a 3000 today. Was sorely tempted to steal it. Honesty does have its downside 8-) I read a few of the things you were discussing about it. There was much discussion on the 040. Does this mean that we're going to have YAKA (Yet Another Killer Amiga) on the way? 8-) Thanks, Ralph Seguin gilgalad@caen.engin.umich.edu gilgalad@dip.eecs.umich.edu gilgalad@goliath.eecs.umich.edu Ralph_Seguin@ub.cc.umich.edu gilgalad@sparky.eecs.umich.edu USER6TUN@UMICHUB.BITNET Ralph Seguin | In order to get infinitely many monkeys to type 11010 Lighthouse Dr. #234 | something that actually makes sense, you need to Belleville, MI 48111 | have infinitely many monkey editors as well. (313) 697-1048
grr@cbmvax.commodore.com (George Robbins) (05/03/90)
In article <2138@zipeecs.umich.edu> gilgalad@dip.eecs.umich.edu (Ralph Seguin) writes: > > Howdy. Well, I just went out and purchased some ZIP rams. Now I have > run into a problem. The ZIPs that I got have a pin missing in every chip The 1M DRAM pinouts have an "unused pin", that would be the next address line for 4M DRAMs. Apparently some vendors have decided to physically omit the pin in their ZIP packaging. > Also, would it be alright to solder ZIP > sockets? If so, where can I get good (hopefully cheap), ZIP sockets? Sockets are one of the downsides of ZIPs. The legs are mechanically much more flexible than DIPs, and it's very easy to bend the legs instead of getting them to go into sockets. Several vendors offer a range of sockets from (relatively) cheap single-wipe designs to the "screw machine" type. -- George Robbins - now working for, uucp: {uunet|pyramid|rutgers}!cbmvax!grr but no way officially representing: domain: grr@cbmvax.commodore.com Commodore, Engineering Department phone: 215-431-9349 (only by moonlite)