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Document ID: MCGN-439PCW

Netfinity 5500 M10 - Power Supply LED Errors

Applicable to: World-Wide

Source: Hardware Maintenance Manual

Power Supply LED Errors
Use the power supply LED information on the following page to trouble shoot power supply problems.

Note The minimum configuration required for the DC Good light to come on is. Power Supply Power Backplane Power AC Inlet Box System Board (With pins 2 and 3 of J32 connected together to bypass the power switch (button). The default is pins 1 and 2.) Processor Board (Verify that the J10 and J17 connectors are installed correctly.)

Table 13. Power Supply LED Errors

AC Good LED	DC Good LED	Description	FRU/Action
Off	Off	No power to system or AC problem.	1. Check AC power to system 2. Power Supply 3. Power Backplane 4. Power AC Inlet Box
On	Off	Standby mode or DC problem.	1. Verify power supply switch is on. 2. Check processor connectors J10 and J17. 3. Move jumper J32 to pins 2- 3 to bypass power control. If the DC Good LED comes on, reseat the system power switch ( button) assembly cable connector to the system board. 4. Remove the adapters and disconnect the cables and power connectors to all internal and external devices. Power- on the system. If the DC Good LED comes on, replace the adapters and devices one at a time until you isolate the problem. 5. Power Supply 6. Power Backplane 7. System Board 8. Processor Board
On	On	Power is Okay	N/A

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	Document Category	Diagnostics
	Date Created	17-12-98
	Last Updated	17-12-98
	Revision Date	17-12-99
	Brand	IBM PC Server
	Product Family	Netfinity 5500 M10
	Machine Type	8661
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