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StorageExpress(TM) system: Compatible SIMMs & Install for Memory Upgrade
ADDING MEMORY TO THE STORAGEEXPRESS(TM) SYSTEM CONTROL UNIT
This document contains information on the following topics:
When to upgrade the memory in the StorageExpress system control
unit
What SIMMs to add to the StorageExpress system control unit
How to install SIMMs in the StorageExpress system control unit
When to upgrade the memory in the StorageExpress system control unit
The StorageExpress I system control unit EL and all XLx models came with
8MB of RAM. The StorageExpress II system control unit EL and all XLx
models come with 16MB of RAM.
Use the table below as a guideline for memory requirements.
StorageExpress
Software Version 1 or 2 Tape Groups 3 or more Tape Groups
1.11.A.E or earlier 8 MB 8 MB
1.2x.A.E 8 MB 16 MB
1.30.A.E 8 MB 16 MB
1.4x.A.E. 16 MB 32 MB
1.5x 16 MB 32 MB
with NMS 32 MB 32 MB
What SIMMs to add to the StorageExpress system control unit
All SIMMs added to the StorageExpress system control unit must be 72
pins, 80 nanoseconds or faster. SIMMs must be added to the
StorageExpress system control unit in pairs.
*70 nanosecond SIMMs may be used but will not provide a performance
increase.
The SIMM slots on the StorageExpress system control unit are tin leaded.
It is recommended that you purchase tin leaded SIMMs however gold
leaded SIMMs will work.
If you are adding: Density to use:
4MB SIMMs 1x36
8MB SIMMs 2x36
16MB SIMMs 4x36
Do not mix SIMMs of different RAM size (i.e. 4 MB and 8 MB) in the SIMM
slots.
How to install SIMMs in the StorageExpress system control unit
1. Power down the StorageExpress system using Central Console's Shut
Down command. Disconnect the power cord from the control unit and
unplug all connections between the control unit and the tape drive
peripheral unit.
2. Remove the (Phillips) retaining screw from the back (in the top
middle) of the control unit. Pull the cover toward the front, then
carefully lift the cover up and off the control unit.
3. Lift the disk drive carrier (this is the component in the center)
straight up to expose the SIMM sockets.
4. Do not force the SIMM into the socket. Use the small notch on one
side of the SIMM to determine its orientation in the socket. Position
the SIMM at a 45 degree angle and press it down firmly into the socket.
When the SIMM is aligned correctly, gently rotate the SIMM upright until
it snaps into place.
If the SIMM does not snap into place, gently spread the retaining clips
to free the SIMM and try again. Repeat this step for the second SIMM.
5. Reverse steps 1 through 3 to put the control unit back together and
power the StorageExpress system on.
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