Cisco Systems NPE-225 사용자 설명서

The DRAM SIMMs on the network processing engine are located in the following sockets:

U18, U25, U4, and U12 on the NPE-100 and the NPE-150 (See 

 

 and 

U11, U25, U42, and U52 on the NPE-200 (See 

Handle SIMMs by the edges only; avoid touching the memory modules, pins, or traces (the metal fingers 
along the connector edge of the SIMM). (See 

To install memory SIMMs in the network processing engine, complete the following steps:

With the network processing engine in the same orientation as the previous procedure (with the handle 
away from you and the edge connector toward you), install the first SIMM in the socket farthest from 
you. Then install the last SIMM in the socket closest to you.

Remove a new SIMM from the antistatic bag. 

To prevent DRAM errors in the NPE-100, NPE-150, or NPE-200, and to ensure that your system 
initializes correctly at startup, DRAM bank 0 (sockets U18 and U25, or U11 and U25) must 
contain no fewer than two SIMMs of the same type. You can also install two SIMMs of the same 
type in bank 1 (sockets U4 and U12, or U42 and U52); however, bank 0 must always contain the 
two largest SIMMs.

Orient the SIMM so its connector edge (the metal fingers) is down and the component side is facing you. 
(See 

Hold the sides of the SIMM between your thumb and middle finger, with your forefinger against the far 
edge, opposite the connector edge. 

Tilt the SIMM to approximately the same angle as the socket and insert the entire connector edge into 
the socket. 

Alignment holes

Connector edge with notch

Polarization notch

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