
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
Summary of Contents for 54835A
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Page 64: ...3 26 ...
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Page 186: ...Chapter 7 Replaceable Parts Exploded Views 7 14 Attenuator Assembly ...
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