Mitsubishi Electric Apricot LS340 Owner's Handbook Manual page 107

I n s i d e t h e S y s t e m U n i t
Processor and bus speed selection
Caution
Do not change these jumpers unless you have upgraded the processor.
Otherwise the processor and other vital motherboard components could
be destroyed.
These settings need to be changed after a Pentium processor
upgrade. They must not be changed otherwise.
Processor speed
Pentium 100 MHz
Pentium 120 MHz
Pentium 133 MHz
Pentium 150 MHz
Pentium 166 MHz
Pentium 200 MHz
On-board video disabling
If you install a video adapter expansion card, the computer should
automatically detect this and disable the on-board video adapter. If
for some reason this does not happen, and you experience problems
with a newly-fitted card, you can manually disable the on-board
video adapter by removing the VGA jumper from jumper block
PL32.
SoundBlaster disabling
The on-board SoundBlaster-compatible audio system can be
disabled if necessary.
SoundBlaster
Enabled (default)
Disabled
A/6 APRICOT LS/VS340 OWNER'S HANDBOOK
Jumper block PL32
BF0 BF1 FS1
2-4 1-3 7-8
4-6 1-3
4-6 1-3 7-8
4-6 3-5
4-6 3-5 7-8
2-4 3-5 7-8
FS0 ISA
11-12
9-10 11-12
11-12
9-10 11-12
11-12
11-12
PL100
1-2
2-3