Agilent Technologies 54835A Service Manual page 125

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
S1 CPU
voltage select
S2 frequency
select
FIC VA-503A Motherboard
The dip switches and jumper are set as follows for the AMD K6-2/400 MHz processors:
Set the PWR (Power supply type select) jumper to 1-2.
1
Set S1 (CPU voltage select) for CPU core voltage; see core voltage on processor top.
2
2.2 V Core
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
K6-2/400 (4X)
S2 (System Frequency select) Switches S2-4 through S2-10 are set to correspond to the CPU/SDRAM/PCI/AGP
frequency.
Power select jumper
S1-1 S1-2 S1-3
Off Off Off
S2-1 S2-2 S2-3
Off On On
S2-4 S2-5 S2-6
Off Off Off
To configure the motherboard jumpers and set up the BIOS
S1-4 S1-5
Off On
S2-7 S2-8
On Off
Chapter 5: Troubleshooting
S2-9 S2-10
On On
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