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Service Hints & Tips |
Document ID: MCGN-3NSPQ3 |
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This document is provided to IBM and our Business Partners to help sell and/or service IBM products. It is not to be distributed beyond that audience or used for any other purpose. |
Netfinity7000 - Power supply fault isolation
Applicable to: World-Wide
Recent product evaluation testing has revealed that approximately 15 to 20 Hot-Pluggable power supplies offered in the Netfinity 7000 may be experiencing higher than normal failure rates that do not meet IBM quality expectations.
A suspect power supply may simply fail. A Power Fault Light located at the front of the Server indicates a power supply failure. Each of the power supplies in the server have two green LED's located behind the airflow vent at the back of the power supply; one indicates AC input to the power supply, the other indicates DC output from the power supply. To ensure that a power supply is operational, both lights on the power supply must be on. Make sure that the Power switch on each installed power supply is in the On position. Refer to the "Identifying Problems through Status Indicators" chart in chapter 6 of the Netfinity 7000 "Users Handbook" for further details about determining the status of power supplies.
A suspect power supply may be identified by the date code on a voltage regulator that can be viewed (with the help of a flashlight) through the vented plate located at the back of the power supply without having to remove it from the server. See the following diagram for details:
NOTE: DO NOT attempt to open a power supply assembly; it is not a serviceable item. Doing so will void the HI-POT test, becomes a safety issue, and will void the Warranty on the power supply.
Power Supply
_____________________________
| ___ |
| Switch |___| || |
| || |
Bottom | _____ || | TOP
|| | Handle || |
|| | || |
||_____|______________________|
¼
: _____________________________
: | |
: | _____ |
: | | | |
: | | | |
: | Voltage Reg. | | |
------->| | ____ | | |
| --->| o | | | |
| _ _|---| | | |
| | || |___| | | |
| |_||_|||| |_____| |
| ===========================|
|_____________________________|
Voltage Regulator detail:
_______________
| |
| ( ) |
| |
|_______________|
| |
|(Logo) Hxxx |<-(xxx = 3 digit date code)
| xxxxxxxxxxx |
| xxxxxxxxxxx |
| xxxxxxxxxxx |
|_______________|
|| || ||
|| || ||
The FRU p/n76H6589 of the power supply has not changed and all suspect power supplies have been purged from FRU stock in distribution channels.
In the rare instance that a confirmed suspect power supply is found in a server, replace it. NOTE: Avoid pulling Hot-Pluggable power supplies while powered on. Use the power switch on the power supply to power it down prior to removing it from the server.
NOTE: The Netfinity 7000 is capable of running on one power supply but limited to only one bank of DASD and no more than 2 processors. Two power supplies are required if the Server is configured with more than one bank of DASD and/or more than two processors.
SAS KEYWORDS:
PSY2 SERVICER ONLY POWER SUPPLY D/T8651
HOT PLUGGABLE FAILURE 8651-RH0 8651-TH0
8651-RM0 8651-TM0 REGULATOR
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Search Keywords |
PSY2, SERVICER ONLY, POWER SUPPLY, D/T8651, HOT PLUGGABLE, FAILURE, 8651-RH0, 8651-TH0, 8651-RM0, 8651-TM0, REGULATOR | |
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Hint Category |
Retain, Power | |
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Date Created |
13-11-97 | |
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Last Updated |
27-04-98 | |
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Revision Date |
24-04-99 | |
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Brand |
IBM PC Server | |
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Product Family |
Netfinity 7000 | |
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Machine Type |
8651 | |
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Model |
ALL | |
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TypeModel |
| |
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Retain Tip (if applicable) |
H161771 | |
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Reverse Doclinks |
USA=A, EMA=A, AFE=A , Owning B.U. USA |