User guide

PH440 NLX Motherboard User Guide September 1998
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