I have found quiet a few references to various ILPOWER errors on this site, but none the same as the error I am getting.
ILPOWER-3-CONTROLLER_ERR: Controller error, Controller number 4: has been reset unexpectedly or s2w bus err
Happens for controller numbers 3, 4, & 5.
Dissabling inline power has no effect.
Cisco Internetwork Operating System Software
IOS (tm) C3550 Software (C3550-I9Q3L2-M), Version 12.1(13)EA1a, RELEASE SOFTWARE (fc1)
Copyright (c) 1986-2003 by cisco Systems, Inc.
Compiled Tue 25-Mar-03 23:21 by yenanh
Image text-base: 0x00003000, data-base: 0x00654C9C
ROM: Bootstrap program is C3550 boot loader
GRALIBs1 uptime is 2 weeks, 4 days, 14 hours, 34 minutes
System returned to ROM by power-on
System restarted at 19:22:44 AEST Wed Dec 3 2008
System image file is "flash:c3550-i9q3l2-mz.121-13.EA1a/c3550-i9q3l2-mz.121-13.EA1a.bin"
cisco WS-C3550-24-PWR (PowerPC) processor (revision D0) with 65526K/8192K bytes of memory.
Processor board ID CAT0720R1RL
Last reset from warm-reset
Running Layer2/3 Switching Image
Ethernet-controller 1 has 12 Fast Ethernet/IEEE 802.3 interfaces
Ethernet-controller 2 has 12 Fast Ethernet/IEEE 802.3 interfaces
Ethernet-controller 3 has 1 Gigabit Ethernet/IEEE 802.3 interface
Ethernet-controller 4 has 1 Gigabit Ethernet/IEEE 802.3 interface
24 FastEthernet/IEEE 802.3 interface(s)
2 Gigabit Ethernet/IEEE 802.3 interface(s)
The password-recovery mechanism is enabled.
384K bytes of flash-simulated non-volatile configuration memory.
Base ethernet MAC Address: 00:0D:28:91:A5:00
Motherboard assembly number: 73-8100-07
Power supply part number: 341-0029-02
Motherboard serial number: CAT07200A1W
Power supply serial number: DTH07170R13
Model revision number: D0
Motherboard revision number: A0
Model number: WS-C3550-24PWR-SMI
System serial number: CAT0720R1RL
Configuration register is 0x10F