XWUU@PURCCVM.BITNET (01/02/91)
I need to know what DRAM chips to buy for upgrading my 1764 REU to 512K (or perhaps beyond). I have read all the articles and they say use 1 X 256K DRAM's, but neglect to say which. My local vendors do not recognize the chips on board the REU; they are labelled KM41256-15 and are manufactured in Korea. How fast are they? Should I assume that the "15" at the end of the manufacturer's part number means 150ns? If I choose to go beyond 512K, must I install piggy-backed 1 X 256's, or can I put in 512K's to get 1Meg (or 1Megs to get 2Meg)? I'm not getting help from my local dealers...if you have experience in this matter, I would greatly appreciate the aid and advice. Thanks! Kirk A. Janowiak XWUU@PURCCVM
Patrick_Andreas_Maher@cup.portal.com (01/08/91)
Yes, from what my friend has learned, all you need to get are some 41256-15 ram chips. You will need 8 of them to get 512K. The price of the chip is from 1.00-2.00. You might also need to get some sockets for the chips as most of the 1764 REU's do not have the sockets in. So you are looking to spend around 15.00 at the most. Do not send in your REU to that guy that is doing the job that is listing in the RUN magazine. He is charging 79.00 for the job.
mroussel@alchemy.chem.utoronto.ca (Marc Roussel) (01/09/91)
In article <37732@cup.portal.com> Patrick_Andreas_Maher@cup.portal.com writes: >Yes, from what my friend has learned, all you need to get are >some 41256-15 ram chips. >[...] So you are looking to spend around >15.00 at the most. Do not send in your REU to that guy that is >doing the job that is listing in the RUN magazine. He is charging >79.00 for the job. On the other hand, if you don't know what you're doing, $79 is a lot cheaper than the price of a new REU. Marc R. Roussel mroussel@alchemy.chem.utoronto.ca