Intel
®
Light Guided Diagnostics Intel
®
Server Board S2600CP and Server System P4000CP TPS
Revision 1.1
Intel order number G26942-003
100
9. Intel
®
Light Guided Diagnostics
Both server boards have several onboard diagnostic LEDs to assist in troubleshooting board-
level issues. This section provides a description of the location and function of each LED on the
server boards.
9.1 5-volt Stand-by LED
Several server management features of these server boards require a 5-V stand-by voltage
supplied from the power supply. The features and components that require this voltage must be
present when the system is “power-down”. The LED is illuminated when AC power is applied to
the platform and 5-V stand-by voltage is supplied to the server board by the power supply.
Figure 32. 5-volt Stand-by Status LED Location
9.2 Fan Fault LED’s
Fan fault LEDs are present for the two CPU fans and the one rear system fan. The fan fault
LEDs illuminate when the corresponding fan has fault.
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