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- Path: sparky!uunet!dtix!darwin.sura.net!zaphod.mps.ohio-state.edu!cis.ohio-state.edu!phoenix.cis.ohio-state.edu!conger
- From: conger@phoenix.cis.ohio-state.edu (James A Conger II)
- Newsgroups: comp.sys.mac.hardware
- Subject: Mac Plus 1M to 2.5M upgrades failing... ...help!
- Summary: Mac Plus 1M to 2.5M upgrades failing with power sup ok and buffers replaced
- Keywords: mac plus upgrade memory problem
- Message-ID: <1992Nov10.145419.5860@cis.ohio-state.edu>
- Date: 10 Nov 92 14:54:19 GMT
- Sender: news@cis.ohio-state.edu (NETnews )
- Followup-To: sender
- Organization: The Ohio State University Dept. of Computer and Info. Science
- Lines: 13
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- We have several Mac Pluses that refuse to take an upgrade from 1M to 2.5M RAM.
- The power supplies seem to be OK, and we have replaced the 74LS245 buffers
- (U9 and U10) that have caused other Mac Pluses to fail when upgraded to 2.5M.
-
- Any thoughts? Anybody try replacing the MUXes? I'll summarize any responses.
-
- Thanks,
- Jim
- --
- James A. Conger II | conger@cis.ohio-state.edu, ...!osu-cis!conger
- IICF/CIS HW Student Employee | conger@nes.nersc.gov (for nat'l education)
- Electrical Engineering Student | jconger@magnus.acs.ohio-state.edu (personal)
- The Ohio State University | Gee, what's wrong with the last acct. name?
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