paravia@csd4.milw.wisc.edu (Mark David Kakatsch) (08/04/89)
A friend of mine recently got a hold of quite a few(>100) of what appear to be 256K DRAM chips. Its part number is MB81256-15, which I assume to be a 256K*1 DRAM. I put 8 of these, selected at random, into my Ramworks III card. The memory wasn't recognized, however, the RAM test program I have recognized that there were chips in the sockets occupied by the 81256. The chip is made by Fujitsu(It says Japan on it, and has an 'F' w/ a line on top of and on bottom of it). Any ideas as to why they won't work?(I tried other samples of 8 w/ the same results). Are they 64K*4, or some other such combination? Thanks much... Mark -- | Albert Einstein got his name after he got| Mark D. Kakatsch | | smashed from drinking only only one stein| paravia@csd4.milw.wisc.edu | | of beer. Hence; Albert EinStein. | ...uwmcsd1!uwmcsd4!paravia |
gaj@hpctdlb.HP.COM (Gordon Jensen) (08/08/89)
Your parts are 256K by 1 page mode devices with 150 nS access time. They have the normal pinout for such parts. They may be too slow for your application, I've run into similiar problems scrounging RAM for PCs. Good luck, Gordon