4Mb SIMMS in SparcStation 1/1+

2007-12-25 7:23:00

Thanks to the several dozen replies, you know who you are.

Original Question:

Our Sun manual says that the instructions for installing 4Mb SIMMS come

with Sun supplied 4Mb SIMMS. Of course we want to buy them somewhere else.

Can someone please send me instructions on what is involved in installing

these, and in mixing them with 1Mb SIMMS.

Solution:

SIMMS must be replaced in banks of four at a time. What constitutes a "bank"

is described in the Installation Guide Appendix A. Put verbally there

are two collumns of 8 SIMM slots in the machine. Divide each collumn in

half and you get banks of four. Bank #1 is the one nearest the floppy disk

(or floppy disk blanking plate if you are poor like us). Bank #1 must

*always* have memory in it. When adding memory or swapping 1MB for 4Mb

SIMMS you must do a whole bank at a time, and all SIMMS in a bank must be

of the same type. Other than that you can mix and match at will but it is

*advised* that you use the banks in order (bank #2 is in the same collumn

as #1, #3 and #4 are numbered in the same order) and that you put the larger

SIMMs in the lower banks.

There are NO dipswitches or jumpers to be set. Needless to say you want the

system powered down and an earthing lead on your wrist.

Thanks again all.

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 Alastair Young Systems Supervisor (SMTS) _ ARIEL

 European CAD Developments Limited aka EuCAD )/___ spares

 EuCAD/Cadence mail: alastair +44-31-225-3434 __/(___)#####c bought

 Full Email Address: alastair@eucad.co.uk / /\\|| \ / \ and

 9 Wemyss Place, Edinburgh, Scotland EH3 6DH \__/ ---- \__/~~~~~ sold

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