Configuration jumpers, Cpu speed – Sony PCV-E518DS User Manual
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VAIO Digital Studio Reference Manual
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Configuration Jumpers
The configuration jumpers provide for CPU speed (JP1), password clear
(JP4), and BIOS recovery (JP2) selections.
CPU Speed
The processor speed jumper (JP1) is a 2 x 4 header that is preconfigured
for the maximum speed, as shown in the following table.
JP1
CPU Clock
Speed
Pins 1 - 2
Pins 3 - 4
Pins 5 - 6
Pins 7 - 8
300 MHz
ON
OFF
ON
ON
350 MHz
ON
OFF
ON
OFF
400 MHz
OFF
ON
ON
ON
450 MHz
OFF
ON
ON
OFF
500 MHz
OFF
OFF
ON
ON
OM04588.VSD
JP1
1
2
7
8
CPU
SPEED