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Configuration
4.2.6
Table 8.
4.2.7
Table 9.
4.2.8
Table 10. SW3-3 Status
4.2.9
Table 11. SW3-4 Status
32
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SW3-1 (BIOS Recovery Module/Flash Select)
If your system is having trouble booting then you can try using this switch to boot from the backup
BIOS. When SW3-1 is open, the BIOS boots from the normal location of on-board flash memory.
When SW3-1 is closed, the BIOS boots from the backup BIOS. See
Configuration Overview" on page 48
SW3-1 Status
SW3-1
Open (Default)
Boots from normal BIOS area.
Closed
Boots from the backup BIOS.
SW3-2 (Bypass BMC to power up)
If you are having difficulty powering up the ZT 5515 then closing this switch will bypass the BMC
firmware and (possibly) allow the board to boot. This can be used if the BMC firmware on the
board is not available. This switch should be closed when the board is used in a non-PICMG* 2.9
chassis (i.e., a chassis that does not supply IPMB power) or when power up difficulties are
encountered.
SW3-2 Status
SW3-2
Open (Default)
BMC will control the board power up.
Closed
The BMC will be bypassed during board power up.
SW3-3 (Ethernet SMBUS isolation)
Closing this switch will disable the SMBUS connection from BMC to the Ethernet. This is used
when user want to disable remote management.
SW3-3
Open (Default)
The SMBUS to Ethernet connection is enabled.
Closed
The SMBUS to Ethernet connection is disabled.
SW3-4 (VGA Routing Control)
This switch controls the routing of VGA signals to either the front or rear of the board. The default
switch configuration routes VGA signals to the faceplate video connector.
SW3-4
Open (Default)
VGA routed to the video connector on the faceplate.
Closed
VGA routed to the J5 Rear Panel I/O connector.
®
TM
Intel
NetStructure
ZT 5515 Compute Processor Board Technical Product Specification
for details on how to flash the BIOS.
Function
Function
Function
Function
Section 9.2, "BIOS
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