Server User Manual

4-29
Configuring Your System
Table 4-8. System Board Jumper Configurations
Jumper Description Option Setting Factory
Default
Your
Setting
Reserved
J7A
Required on factory default. 2-3 2-3 2-3
FLASH Code
J6A
FLASH reprogramming
power protection
BIOS not write protected; FLASH update
BIOS write protected; no FLASH update
1-2
2-3
1-2
Reserved
J5A
Required on factory default. 1-2 1-2 1-2
CPU Speed
J4A
Used with jumpers at
J3A, J2A, J1A, J6B and
J5B to set CPU speed*
Required on factory default 2-3 2-3 2-3
CPU Speed
J3A
Used with jumpers at
J2A, J4A, J1A, J6B and
J5B to set CPU speed*
Required on factory default 1-2 1-2 1-2
CPU Speed
J2A
Used with jumpers at
J3A, J4A, J1A, J6B and
J5B to set CPU speed*
Required on factory default
2-3 2-3 2-3
CPU Speed
J1A
Used with jumpers at
J3A, J4A, J2A, J6B and
J5B to set CPU speed*
Required on factory default
2-3 2-3 2-3
Reserved
J7B
Required on factory default. 1-2 1-2 1-2
CPU Speed
J6B
Used with jumpers at
J3A, J4A, J2A, J1A and
J5B to set CPU speed*
Required on factory default. 1-2 1-2 1-2
CPU Speed
J5B
Used with jumpers at
J3A, J4A, J2A, J1A and
J6B to set CPU speed*
Required on factory default. 2-3 2-3 2-3
Reserved
J4B
Required on factory default. 2-3 2-3 2-3
Reserved
J3B
Required on factory default. 1-2 1-2 1-2
Password Clear
J2B
Password protection Password protection enabled
Password cleared; protection off
1-2
2-3
1-2
CMOS Clear
J1B
Real-time clock CMOS
protection
RTC CMOS protection enabled
RTC CMOS cleared to factory defaults
1-2
2-3
1-2
Reserved
J601
All nine jumpers must be
in.
Required on factory default. IN IN IN
Reserved
J612
Required on factory default. 2-3 2-3 2-3
* To change CPU speed, see Table 4-9.