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Installing Modules and SIMMs
56 3000 Series User Guide
Installing a SIMM
You can upgrade your 3000 Series memory (DRAM) to 24, 40, or 72 MB by
installing a single in-line memory module (SIMM).
Note: To be sure that you have the appropriate SIMM for upgrading your
3000 Series memory, contact N
x
Networks.
1. Turn off power to your 3000 Series.
2. Disconnect all network connections, including connections to the
telephone system.
3. Remove the cover by unscrewing the two screws on each side of the unit
and the three screws on the underside of the unit’s chassis and lifting off
the cover.
4. Seat the SIMM securely into place. Be careful to press the SIMM firmly
into place.
5. Press the SIMM back (toward the center of the motherboard) so that it sits
at an angle in its slot.
6. Replace the cover.
Be careful to line up the motherboard’s screw holes with the chassis’
screw holes.
3000 Series
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IC
E
OICE
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V1
D
1
D1
D
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D2
D
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D3
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T
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ETH
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V2
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V4
DATA
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ALM
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K
OK
P
W
R
PWR
SIMM