NEC LE2200, Руководство пользователя

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3-26
Configuring Your System
Table 3-9. 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
J1A, J2A, J3A, J5B and
J5B to set CPU speed Refer to Table 3-10 to set CPU speed.
Bus:CP Freq = 1:4 = pins 1-2; Bus:CP
Freq = 1:2, 1:3, 2:5 or 2:7 = pins 2-3 Dependent on
speed of installed
CPU.
CPU Speed
J3A Used with jumpers at
J1A, J2A, J4A, J5B and
J5B to set CPU speed Refer to Table 3-10 to set CPU speed.
Bus:CP Freq = 1:3 or 2:7 = pins 1-2;
Bus:CP Freq = 1:2, 1:4 or 2:5 = pins 2-3 Dependent on
speed of installed
CPU.
CPU Speed
J2A
Used with jumpers at
J1A, J3A, J4A, J5B and
J5B to set CPU speed Refer to Table 3-10 to set CPU speed.
Bus:CP Freq = 1:2, 1:3, 1:4, 2:5 or 2:7 =
pins 2-3 Dependent on
speed of installed
CPU.
CPU Speed
J1A
Used with jumpers at
J2A, J3A, J4A, J5B and
J5B to set CPU speed Refer to Table 3-10 to set CPU speed.
Bus:CP Freq = 2:5 or 2:7 = pins 1-2;
Bus:CP Freq = 1:2, 1:3 or 1:4 = pins 2-3 Dependent on
speed of installed
CPU.
Reserved
J7B Required on factory default. 1-2 1-2 1-2
Reserved
J6B Required on factory default. 1-2 1-2 1-2
CPU Speed
J5B
Used with jumpers at
J1A, J2A, J3A and J4A
to set CPU speed Refer to Table 3-10 to set CPU speed.
Bus Freq = 60 MHZ = pins 1-2;
Bus Freq = 66 MHZ = pins 2-3 Dependent on
speed of installed
CPU.
Model Type
J4B
Used with jumpers at
J25, J26, J27, J29, J51,
J52, J53 and J54 to set
server model type
Required on factory default. 1-2 1-2 1-2
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
J21 All nine jumpers must be
in Required on factory default. IN IN IN
Model Type
J25
Used with jumpers at
J4B, J26, J27, J29, J51,
J52, J53 and J54 to set
server model type
Required on factory default. 1-2 1-2 1-2