user manual

Chapter 5: Troubleshooting
To configure the motherboard jumpers and set up the BIOS
5–47
Configuring the FIC VA-503A motherboard switches for the 400 MHz CPU and
120 Mbyte floppy drive
There are switches and a jumper on the FIC VA-503A motherboard that must be configured to
the correct settings for the AMD K6-2/400 MHz microprocessor. The FIC VA-503A motherboard
is shown in the following figure.
Figure 5-12
FIC VA-503A Motherboard
The dip switches and jumper are set as follows for the AMD K6-2/400 MHz processors:
1 Set the PWR (Power supply type select) jumper to 1-2.
2 Set S1 (CPU voltage select) for CPU core voltage; see core voltage on processor top.
2.2 V Core S1-1 S1-2 S1-3 S1-4 S1-5
Off Off Off Off On
S2 (System Frequency select) Switches S2-1 through S2-3 set the ratio of CPU Frequency/Bus Frequency.
This is set to 4X for the K6-2/400 MHz processor.
Ratio S2-1 S2-2 S2-3
K6-2/400 (4X) Off On On
S2 (System Frequency select) Switches S2-4 through S2-10 are set to correspond to the CPU/SDRAM/PCI/AGP
frequency.
S2-4 S2-5 S2-6 S2-7 S2-8 S2-9 S2-10
Off Off Off On Off On On
S1 CPU
voltage select
S2 frequency
select
Power select jumper