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Configuring Your System
Table 4-8. System Board Jumper Configurations
Jumper Description Option Setting Factory
Default
Your
Setting
FLASH Code
A04A
FLASH reprogramming
power protection
BIOS not write protected; FLASH update
BIOS write protected; no FLASH update
1-2
2-3
1-2
Reserved
A06K
Required on factory default. 1-2 1-2 1-2
Reserved
A07A1
Required on factory default. 1-2 1-2 1-2
Reserved
A07A2
Required on factory default. 1-2 1-2 1-2
Reserved
A08T
All jumpers must be out. Required on factory default OUT OUT OUT
Reserved
A08T1
All jumpers must be out. Required on factory default OUT OUT OUT
Password Clear
A08T2
Password protection Password protection enabled
Password cleared; protection off
1-2 1-2
CMOS Clear
A09T1
Real-time clock CMOS
protection
RTC CMOS protection enabled
RTC CMOS cleared to factory defaults
1-2 1-2
CPU Speed
A09T2
Used with jumpers at
A09T3, A09T4, and A10T
to set CPU speed
Required on factory default. 2-3 2-3 2-3
CPU Speed
A09T3
Used with jumpers at
A09T2, A09T4, and A10T
to set CPU speed
Required on factory default. 1-2 1-2 1-2
CPU Speed
A09T4
Used with jumpers at
A09T2, A09T3, and A10T
to set CPU speed
Required on factory default. 2-3 2-3 2-3
CPU Speed
A10T
Used with jumpers at
A09T2, A09T3, and
A09T4 to set CPU speed
Required on factory default. 2-3 2-3 2-3
Reserved
A13T14
Required on factory default. 1-2 1-2 1-2
Reserved
A15F1
Required on factory default. 2-3 2-3 2-3
Reserved
P25
All nine jumpers must be
in.
Required on factory default. IN IN IN