jfw@cello.mc.duke.edu (John Whitehead) (10/18/90)
In article <21674@duke.cs.duke.edu> jfw@neuro.duke.edu (me) wrote: >I was doing memory upgrades... > >The SE's monitor is a checkerboard pattern (16 across by 10-1/2 down) >upon bootup... then nothing else happens. I have fixed the problem, thanks to all who responded so quickly. I had the 256K RAM chips where the 1 MB chips should have been, and vice versa. Apparently, an SE with resistors needs the 1MB chips in slots 1&2, but an SE with jumpers needs the 1MB chips in slots 3&4. I had been working on both yesterday; I didn't know they were different. To make matters more confusing, my memory installation manual says the latter in the text, but has the former in the diagram. John Whitehead Internet: jfw@neuro.duke.edu Department of Neurobiology jfw@well.sf.ca.us Duke University Medical Center Bitnet: white002@dukemc Durham, North Carolina