P H 4 4 0 N L X M o t h e r b o a r d U s e r G u i d e
S e p t e m b e r 1 9 9 8
MITSUBISHI ELECTRIC MOTHERBOARD DIVISION
PAGE 13 OF 51
Processor Core/Bus Ratio – J1-J4
J1
J2
J3
J4
Ratio
Speed at
100MHz
X
X
3.5
350
X
X
X
4.0
400
X
X
4.5
450
X – Jumper fitted
VGA Enable – J5
1-2
Disable on-board VGA controller
2-3
Enable on-board VGA controller
PCI Audio CODEC Enable – J6
1-2
Enable audio CODEC
2-3
Disable audio CODEC
BIOS Program Enable – J7
1-2
Disable BIOS updates
2-3
Enable BIOS updates
Clear Configuration (CMOS) Memory – J8
(Ensure AC is disconnected from the power supply before moving this jumper)
1-2
Normal operation
2-3
Clear CMOS (jumper must be returned to normal position before power-on)
Enable Motherboard Speaker – J9
1-2
Enabled
2-3
Disabled
