Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!pacific.mps.ohio-state.edu!linac!att!ucbvax!pro-nbs.cts.com!lhaider From: lhaider@pro-nbs.cts.com (Laer Haider) Newsgroups: comp.sys.apple2 Subject: HELP! Message-ID: <1481.apple.a2.net@pro-nbs> Date: 14 Apr 91 01:26:50 GMT Sender: daemon@ucbvax.BERKELEY.EDU Organization: The Internet Lines: 28 I'm working on a friend's IIgs that has problems. I've tracked the problem down to bad memory on the external memory board (Apple brand). Claris's memory checker that came with AWGS V1.1 shows bad memory addresses at: $080000 $097A20 $080002 $097CC0 $080900 $0ABE20 My problem is in converting these numbers into actual locations on the memory board. The chips are in the board in 2 sections of 256K chips at 120 ns (I know there are actually for banks). Above the chips in the top section are markings: UA1 UA2 UA3 UA4... UA16, and below the bottom are: UB1 UB2 UB3... UB16. The jumpers at J1 and J2 are in place and all memory is being recognized (shows 1 MB in the Control Panel - RAM Disk menu). Can anyone convert these addresses to actual chip locations for me? Please? You'd have the undying gratitude of me and Bob Sharpe. :) / _______________________________________________ \ / / ProLine: pro-nbs!lhaider \\\' , / // INET: lhaider@pro-nbs.cts.com \\\//, _/ //, UUCP: crash!pro-nbs!lhaider \_-//' / //<, ARPA: crash!pro-nbs!lhaider@nosc.mil \ /// > \\\`__/_ /,)-^>>\` , \\\ The opinions express here are just opinions. (/ \\ /\\\ Don't have a cow man! // _//\\\\ ----------------------------------------------- ((` ((