Xerox 4540 Service Manual - Page 169

To Replace a CPU (FRU)

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FIGURE 3-22 Location of Jumpers on the I/O Controller (X4540) 6 NORMAL | CLEAR CMOS MEM 1 2 3 4 5 7 NORMAL | CLEAR CMOS MEM 1 J2802 2 J2800 - RTC RESET 3 J4900 - CLR PSWD 4 J2804 - FORCE RECOVERY 5 J4902 - FLASH WP 6 Back of System 7 CPU board ▼ To Replace a CPU (FRU) This section describes how to remove and replace a CPU. Note - System cooling might be affected by dust and contaminant build-up. It is recommended that systems be opened and checked approximately every six months or more often in dirty operating environments. Check system heat sinks, fans, and air openings. If necessary, clean systems by brushing or blowing contaminants or carefully vacuuming contaminants from the system. Chapter 3 Maintaining the Sun Fire X4500 and X4540 Servers 3-49

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Chapter 3
Maintaining the Sun Fire X4500 and X4540 Servers
3-49
FIGURE 3-22
Location of Jumpers on the I/O Controller (X4540)
▼
To Replace a CPU (FRU)
This section describes how to remove and replace a CPU.
Note –
System cooling might be affected by dust and contaminant build-up. It is
recommended that systems be opened and checked approximately every six months
or more often in dirty operating environments. Check system heat sinks, fans, and air
openings. If necessary, clean systems by brushing or blowing contaminants or
carefully vacuuming contaminants from the system.
NORMAL | CLEAR CMOS MEM
1
J2802
2
J2800 — RTC RESET
3
J4900 — CLR PSWD
4
J2804 — FORCE RECOVERY
5
J4902 — FLASH WP
6
Back of System
7
CPU board
6
7
NORMAL | CLEAR CMOS MEM
1
2
3
4
5