HP 7500 Series Installation Manual page 41

Installing a master/slave DIMM
CAUTION:
Determine the master or slave HP 7500 48-port PoE DIMM (JD192B) before installation. For how to
•
distinguish them, see
Plug the master DIMM into the master DIMM slot (there is a "Master" mark on the PCB under the slot),
•
and the slave DIMM into the slave DIMM slot (there is a "Slave" mark on the PCB under the slot).
• The master and slave DIMMs must be used simultaneously. The PoE system operates correctly only when
both of them are inserted in the correct slots.
Avoid touching the components on the PoE DIMM and PCB during installation and removal of a PoE
•
DIMM.
HP 7500 48-port PoE DIMM(JD192B) is applicable to LSQ1FV48SA0, LSQ1GV48SA0, LSQ1GV48SC0,
and LSQ1GV40PSC0.
Figure 30 PoE master/slave DIMM
(1) There is a chip on the master DIMM, but not on the slave DIMM.
To install a PoE DIMM:
1. Wear an ESD wrist strap and make sure it makes good skin contact and is well grounded. For
more information, see
2. Place the card steadily. Then find the master PoE DIMM slot (there is a Master mark on the PCB
under the slot) on the PCB.
3. Pull the white clips on the two sides of the PoE DIMM slot outward, as shown in callout 1 on
29.
4. Unpack the master PoE DIMM, and align the golden finger of the PoE DIMM with the groove on the
slot.
5. As shown in
along the guide rail into the slot until the white clips click into the grooves on the two sides of the
PoE DIMM.
6. Verify that the clips lock the master PoE DIMM.
7. Repeat steps 3 through 6 to install the slave DIMM to the slave DIMM slot (there is a Slave mark on
the PCB under the slot).
Figure 30.
"Attaching an ESD wrist
Figure 29, use your thumbs to press the edges of the master PoE DIMM and push it
strap."
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Figure