Sun Microsystems SPARCcenter 2000 Service Manual page 222

10
10.5.2 Installing a SIMM or NVSIMM
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10-14
Note – Do not mix SIMMs of different capacities.
Caution – If you are adding memory to a system (always in multiples of 8
SIMMs), refer to Section E.3.3, "SIMMs." Selecting the wrong location(s) can
impair system performance.
1. Orient the system board so that the XDBus connectors face you.
2. Remove the SIMM (or NVSIMM) from the antistatic package.
3. For NVSIMM only: if the battery is not already activated, move the
jumper to the ON position. See Figure 10-13. If the jumper is already in
the ON position, do not move it.
Caution – Once you turn the battery ON, do not move or remove the jumper.
Any data contained in the NVSIMM memory will be lost.
Note – It is not necessary to move jumpers on NVSIMMs that have been
factory-installed in a new system. The system is delivered with the NVSIMM
batteries activated.
4. Hold the SIMM at the edges with pin 1 to the left.
The large alignment notch or the double notch is at the left side. See
Figure E-3.
5. Guide the SIMM into the slot so that the SIMM connector pads touch the
bottom of the socket.
The bottom alignment notch on the SIMM must align with the tab in the
center of the socket. The locking pins must align with the holes in the sides
of the SIMM. See Figure 10-11.
6. Tilt the SIMM upright to lock it in place.
The locking tabs should automatically lock around the SIMM.
SPARCcenter 2000/2000E Service Manual—June 1996