Overview 2-3
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Overview
This chapter provides the definitions and locations of jumpers, headers, and
connectors. All of the configuration jumpers on the Aviant BX Socket 370 are
shipped with the default settings. The default settings are marked with a star ( * ).
Jumpers
In general, the jumpers are used to select options for certain features (Figure 2-1).
Some of the jumpers are user-configurable, allowing system enhancement. Other
jumpers are used for testing purposes only and should not be altered. To select any
option, insert the jumper cap (Short) or remove (NC) the jumper cap from the
jumper pins according to the following instructions. (Here NC stands for “Not
Connected”. )
Figure 2-1. Jumper Locations
DIMM1
DIMM2
DIMM3
DIMM4
Socket370
82443BX
82371EB
W83977ATF
B69000
82559
Disk-on-Chip Jumper Setting (J P8)
WDT Time-out Interval Setting (JP9)
VGA Disable Jumper (JP10)
Ethernet Disable Jumper (JP11)
RTC CMOS Clear Setting (JP2)
AT/ATX Power Supply Selection (JP3)
Watchdog Timer Settings
1 2 1 2 1 2 3 1 2 3
JP4 JP5
JP6
JP7
CPU Core/
Bus Ratio
(SW1)
ON
1 2 3 4
2 4 6
1 3 5 7
8
1
2
3
4
5
6
1 2 3
1
2
3
1
3
2
1 2
