IBM 86645RY Hardware Maintenance Manual - Page 176

System board jumpers, Table 10. System board jumper J20

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System board jumpers Table 10 describes the jumpers on the system board. The numbers in the table correspond to the highlighted numbers on the illustration in "System board component locations" on page 166. Note Turn off the server, and disconnect the power cords before moving any jumpers. The following illustration shows pin positions for the system board jumper J20. Pin 1 is the pin at the upper-left corner of J20 in the illustration of the system board in "System board component locations" on page 166. 1 23 4 6 7 9 10 11 12 Table 10. System board jumper (J20) Jumper Pin Positions Pins 1-3 (N/A) Pins 4-6 (N/A) Pins 7-9 Pins 10-12 (N/A) Description The default is no jumper on pins 1 , 2, and 3. The default is a jumper on pins 5 and 6. The default is a jumper on pins 8 and 9 ASM enabled (pins 7-8 ASM disabled). The default is a jumper on pins 10 and 11. 168 Netfinity Server HMM

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System board jumpers
Table
10 describes the jumpers on the system board.
The
numbers in the table correspond to the highlighted
numbers on the illustration in “System board component
locations” on page
166.
Note
Turn off the server, and disconnect the power cords
before moving any jumpers.
The following illustration shows pin positions for the system
board jumper J20.
Pin 1 is the pin at the upper-left corner
of J20 in the illustration of the system board in “System
board component locations” on page
166.
1
2
3
10
11
12
4
7
6
9
Table 10. System board jumper (J20)
Jumper Pin
Positions
Description
Pins 1–3 (N/A)
The default is no jumper on pins 1 , 2, and 3.
Pins 4–6 (N/A)
The default is a jumper on pins 5 and 6.
Pins 7–9
The default is a jumper on pins 8 and 9 ASM
enabled (pins 7-8 ASM disabled).
Pins 10–12 (N/A)
The default is a jumper on pins 10 and 11.
168
Netfinity Server HMM