MITSUBISHI ELECTRIC MOTHERBOARD DIVISION
PAGE 12 OF 47
1
Slot 1 connector
PL13
Floppy Drive Header
PL26
ISA Connector
2
Lithium cell (CR2032)
PL14
IDE Secondary Header
MM1
MM2
SDRAM socket
PL15
IDE Primary Header
J1
Processor Speed
Jumpers
PL2
System Fan Power
PL17
ATAPI Audio LINE in
(natural)
A
Keyboard/Mouse
PL3
Processor Fan Power
PL18
Audio Volume Header
B
USB (Dual)
PL4
Hard switch power supply
jumper
PL19
BIOS Write Protect
C
Serial Port COM 1
PL6
Configuration memory
clear jumper
PL20
Wake on LAN Header
D
Parallel Port
PL7
Intrusion Detect connector
PL21
AGP Connector
E
Serial port COM 2
PL8
Power connector
PL22
PCI Audio Disable Jumper
F
Line Output
PL9
Front Panel Connector
PL23
PCI Slot 1 Connector
G
Microphone Input
PL11
ATAPI Telephony (black)
PL24
PCI Slot 2 Connector
H
Line Input
PL12
ATAPI CD audio in (green)
PL25
PCI Slot 3 Connector
J
MIDI & Joystick
! " #
The processor operating frequency is a multiple of the bus speed, 66 or
100MHz. This jumper block sets the multiple. Note many processors
have a fixed multiple and therefore the jumper setting is ignored.
X – Jumper fitted
X
X
3.5
233
350
X
X
X
4.0
266
400
X
X
4.5
300
450
X
X
5.0
333
500
X
5.5
366
550
X
X
X
6.0
400
600
$%& & '(( ! " '((#
1-2
Enable audio CODEC
2-3
Disable audio CODEC
A B C D
Motherboard
Audio Disabled
Motherboard
Audio Enabled