core power supply problems E4500

From: pramod55@attbi.com
Date: Tue Jul 23 2002 - 12:47:05 EDT


Hi SUN Managers,
I have replaced bad core power supply 2 with good one
but still getting the same error and no maintenance light
is lit on the power supply but prtdiag shows
---------------------
Detected System Faults
======================
Unit 2 Core Power Supply failure
        Detected Mon Jul 22 08:46:21 2002
PROM detected failure
        Detected Tue Jul 16 16:38:09 2002
and this ps coming On and immediately goes off as in
var/adm logs
 
Jul 22 08:46:14 sysctrl: [ID 298304 kern.warning]
WARNING: Core Power Supply 2 Failing
Jul 22 08:46:14 sysctrl: [ID 459609 kern.warning]
WARNING: Redundant power lost
Jul 22 08:46:18 sysctrl: [ID 298304 kern.notice]
NOTICE: Core Power Supply 2 OK
Jul 22 08:46:18 sysctrl: [ID 404430 kern.notice]
 NOTICE: Redundant power available
Jul 22 08:46:19 sysctrl: [ID 298304 kern.warning]
WARNING: Core Power Supply 2 Failing
Jul 22 08:46:19 sysctrl: [ID 459609 kern.warning]
WARNING: Redundant power lost
Jul 22 08:46:21 sysctrl: [ID 298304 kern.notice] NOTICE:
Core Power Supply 2 OK
Jul 22 08:46:21 sysctrl: [ID 404430 kern.notice] NOTICE:
Redundant power available
Jul 22 08:46:21 sysctrl: [ID 298304 kern.warning]
WARNING: Core Power Supply 2 Failing
Jul 22 08:46:21 sysctrl: [ID 459609 kern.warning]
WARNING: Redundant power lost
---------------------------------
any suggestions ?
Thanks in advance.
Pramod
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