FTs Switch Settings
A small number of instances have been reported, where
motherboard switch positions have been incorrectly set at the manufacturing stage. Not all
switch functions are detailed on the system legend and may therefore go un-noticed by
installers. The most common fault is the incorrect setting of SW5 which informs the BIOS
which type of machine the motherboard is installed into (Qi 486 or FTs). The result of
this is that if UPS monitoring software is loaded, the system may not complete its BOOT
sequence correctly.
Detailed below are the functions of switches fitted to the
FTs and Qi 486 motherboards; where applicable, the correct factory setting is identified.
|
SW1 |
3.5"/5.25" Select Switch For Second Drive |
|
|
Position A |
= |
5.25" Second Drive |
|
|
Position B |
= |
3.5" Second Drive |
|
|
SW2 |
Second Drive Present |
|
|
Position A |
= |
Second Drive Present |
|
|
Position B |
= |
Second Drive Not Present |
|
|
|
|
|
|
SW3 |
Hardware Configuration Switches For Factory Diagnostics |
|
|
On |
Off |
|
1 |
ROM Data on MCA BUS |
ROM Data not on MCA BUS |
|
2 |
Cache Disabled |
Cache Enabled |
|
3 |
ROMs Disabled |
ROMs Enabled |
|
4 |
Refresh Enabled |
Refresh Disabled |
|
|
SW4 |
Software Configuration Switches |
|
|
Memory |
|
|
1MB |
1MB |
2MB |
5MB |
4MB |
8MB |
12MB |
16MB |
|
1 |
OFF |
ON |
OFF |
ON |
OFF |
ON |
OFF |
ON |
|
2 |
OFF |
OFF |
ON |
ON |
OFF |
OFF |
ON |
ON |
|
3 |
OFF |
OFF |
OFF |
OFF |
ON |
ON |
ON |
ON |
|
|
System Board Clock Speed |
|
|
20MHz |
25MHz |
|
4 |
ON |
OFF |
|
5 |
OFF |
ON |
|
|
System Type |
|
6 |
Must Be ON (FTs) |
|
7 |
Must Be ON (Not Used) |
|
8 |
Set to ON for FTs |
Set to OFF for Qi 486 |
|
|
|
|
|
|
SW5 |
Video Configuration Switch |
|
|
Position A |
= |
No Sync Video |
|
|
Position B |
= |
Sync Video |
|
