paulb@circus.camex.com (Paul Braiman) (08/17/90)
I have a 18 month old Macintosh SE/HD20 with 1Mb of RAM.
I recently installed (2) 1Mb SIMMS (80ns) by removing the two low density SIMMS
from slots 3 and 4 and replacing them with the higher density chips and changed
the jumper from the 1M position to the 2M/4M position.
When I started up and checked the total memory under "About Finder", only 2048k were showing and not the 2560k that should have been.
I later installed two more 1Mb SIMMS into slots 1 and 2 giving me a total of 4Mb and double checked that the jumper was in the correct position.
When I checked the total memory again, still only 2048k were showing.
What, if anything, is wrong with my computer or have I done something
incorrectly?
If you have any ideas, please email me. Thanks.
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(paulb@camex.com) | "It has been my experience that folks who have no vices
| have very few virtues" -Abraham Lincoln (1809-1865)
-------------------------------------------------------------------------------anderson@Apple.COM (Clark Anderson) (08/18/90)
From: paulb@circus.camex.com (Paul Braiman) Newsgroups: comp.sys.mac.hardware,comp.sys.mac.misc Subject: Memory problem >I recently installed (2) 1Mb SIMMS (80ns) by removing the two low density SIMMS >from slots 3 and 4 and replacing them with the higher density chips and changed >the jumper from the 1M position to the 2M/4M position. >What, if anything, is wrong with my computer or have I done something >incorrectly? You have done nothing wrong. The silkscreen on the motherboard is wrong. Take the jumper off completely for a 4 or 2.5 meg configuration. --clark -- ----------------------------------------------------------- Clark Anderson InterNet: anderson@apple.com PCB Software Tools AppleLink: C.ANDERSON Apple Computer, Inc BellNet: 408-974-4593 "I speak only for myself, much to my employer's relief..." -----------------------------------------------------------