Chapter 5: Advanced Motherboard Setup
5-17
HD LED Indicator
The HD LED connector is located
at J69. This LED indicates activ-
ity on any hard drive (IDE, SCSI or
CD-ROM).
Speaker
A speaker header is located at
J69. You may disable the onboard
speaker by jumping the last two
pins of this connection or use all
four pins as a header for an ex-
ternal speaker.
Power LED
The Power LED connection (lo-
cated on J69 on the P4DLR and is
used to inform you that power is
being supplied to the motherboard.
Third Power Supply Fail
Header
Connect a cable from your power
supply to the JP46 header to pro-
vide warning of power supply fail-
ure. The warning signal is passed
through the PWR_LED pin on JF1
to provide indication of a power
failure on the chassis.
Note:
This
feature is only available when us-
ing triple redundant Supermicro
power supplies. See the table on
the right for pin definitions.
T hird Pow er Supply Fail He ader
Pin Definitions (JP46)
Pin
Nu mber
1
2
3
4
Definition
P/S 1 Fail Signal
P/S 2 Fail Signal
P/S 3 Fail Signal
Reset (from MB)
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