Cisco Catalyst 4500 Supervisor LED Status Orange And In Continuous Boot Loop

Cisco Cat4500 switch is in boot loop and restart itself in random interval (every 3 hrs, 1hrs, 1day). A check on sup displayed LED status is orange

FRNX4500-CORE#show environment status
Power Fan Inline
Supply Model No Type Status Sensor Status
------ ---------------- --------- ----------- ------- -------
PS1 PWR-C45-1000AC AC 1000W good good n.a.
PS2 PWR-C45-1000AC AC 1000W bad/off bad/off n.a.

Power supplies needed by system : 1
Power supplies currently available : 1

Chassis Type : WS-C4506

Power consumed by backplane : 0 Watts

Supervisor Led Color : Orange

Module 1 Status Led Color : Orange
Module 2 Status Led Color : Green
Module 3 Status Led Color : Green
Module 4 Status Led Color : Green
Module 5 Status Led Color : Green

Fantray : good

A show on diagnostic result demonstrate the sup is in normal state

FRNX4500-CORE#show diagnostic result module 1

module 1:

Overall diagnostic result: PASS

Test results: (. = Pass, F = Fail, U = Untested)

1) supervisor-bootup ---------------> .
2) packet-memory-bootup ------------> .
3) packet-memory-ongoing -----------> U

However, a check on module display power failure issue

Chassis Type : WS-C4506

Power consumed by backplane : 0 Watts

Mod Ports Card Type Model Serial No.
---+-----+--------------------------------------+------------------+-----------
1 2 1000BaseX (GBIC) Supervisor(active) WS-X4013+ JAE********
2 6 1000BaseX (GBIC) WS-X4306-GB JAE********
3 32 10/100BaseTX (RJ45) WS-X4232-RJ-XX JAE********
4 32 10/100BaseTX (RJ45) WS-X4232-RJ-XX JAE********
5 32 10/100BaseTX (RJ45) WS-X4232-RJ-XX JAE********

M MAC addresses Hw Fw Sw Status
--+--------------------------------+---+------------+----------------+---------
1 ****.59e5.1a40 to 0017.59e5.1a41 4.1 12.2(20r)EW1 12.2(18)EW5 Ok
2 ****.9dd4.5276 to 0016.9dd4.527b 4.1 Ok
3 ****.9d1a.4220 to 0016.9d1a.424f 1.9 Ok
4 ****.d742.0260 to 000e.d742.028f 1.9 Ok
5 ****.946a.bf90 to 0017.946a.bfbf 1.9 Ok

System Failures:
----------------
Power Supply: bad/off (see 'show power')

Checked on the Cisco database and confirmed that the amber light is because of bad PEM - Power Module

As for the Boot Loop, show bootvar found that the boot flash is missing. This might due to improper reboot on the switch

FRNX4500-CORE#show bootvar
BOOT variable does not exist
CONFIG_FILE variable does not exist
BOOTLDR variable does not exist
Configuration register is 0x2101

Assign boot image and change the config register from 0x2101 to 0x2102

FRNX4500-CORE#configure terminal
FRNX4500-CORE(config)#boot system flash bootflash:cat4000-i9s-mz.122-18.EW5.bin
FRNX4500-CORE(config)#config-register 0x2102