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Document ID: DDSE-42ZPVC

Netfinity 5500 - Undetermined Problems

Applicable to: World-Wide

Undetermined Problems
You are here because the diagnostic tests did not identify the failure, the Devices List is incorrect, or the system is inoperative.

Notes 1. If you suspect a software mismatch is causing failures (solid or intermittent), be sure to see "Resolving Configuration Conflicts". 2. A corrupt CMOS can cause undetermined problems.

Check the LEDs on all the power supplies, see "Power Supply LED Errors". If the LEDs indicate the power supplies are working correctly, return here and do the following:

1. Power-off the computer.
2. Be sure the system is cabled correctly.
3. Remove or disconnect the following (one at a time) until you find the failure (power-on the computer and reconfigure each time).
- Any external devices
- Surge suppressor device (on the computer)
- Modem, printer, mouse, or non-IBM devices
- Each adapter
- Drives
- Memory-Module Kits (Minimum requirement = 1 bank of 64 MB DIMMs)

Note Minimum operating requirements are: 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 are installed correctly.) Memory-Module Kits (Minimum requirement = 1 bank of 64 MB DIMMs)

4. Power-on the computer. If the problem remains, suspect the following FRUs in the order listed:
- Power Supply
- Power Backplane
- System Board
- Processor Board

Note If the problem goes away when you remove an adapter from the system, and replacing that adapter does not correct the problem, suspect the system board then the processor board(s)

	Search Keywords
	Document Category	Diagnostics
	Date Created	09-12-98
	Last Updated	09-12-98
	Revision Date	09-12-99
	Brand	IBM PC Server
	Product Family	Netfinity 5500
	Machine Type	8660
	Model	ALL
	TypeModel
	Retain Tip (if applicable)
	Reverse Doclinks and Admin Purposes