Hi there,
I had once de-attached the flash from Cisco 1841 by my mistake when it was being booted. Then, I booted it up again but it stopped reading hardware info, as follows:
=============
System Bootstrap, Version 12.3(8r)T9, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 2004 by cisco Systems, Inc.
PLD version 0x10
GIO ASIC version 0x127
c1841 processor with 131072 Kbytes of main memory
Main memory is configured to 64 bit mode with parity disabled
Readonly ROMMON initialized
program load complete, entry point: 0x8000f000, size: 0xc100
Initializing ATA monitor library.......
program load complete, entry point: 0x8000f000, size: 0xc100
Initializing ATA monitor library.......
program load complete, entry point: 0x8000f000, size: 0xd4a9a0
Self decompressing the image : ################################## ###############
################################## ################################## ############
######## [OK]
Smart Init is enabled
smart init is sizing iomem
ID MEMORY_REQ TYPE
0X003AA110 public buffer pools
0X00211000 public particle pools
0X0002 0X0001A800 Card in slot 0
0X000021B8 Onboard USB
If any of the above Memory Requirements are
"UNKNOWN", you may be using an unsupported
configuration or there is a software problem and
system operation may be compromised.
Allocating additional 7703097 bytes to IO Memory.
PMem allocated: 117440512 bytes; IOMem allocated: 16777216 bytes
Restricted Rights Legend
Use, duplication, or disclosure by the Government is
subject to restrictions as set forth in subparagraph
(c) of the Commercial Computer Software - Restricted
Rights clause at FAR sec. 52.227-19 and subparagraph
(c) (1) (ii) of the Rights in Technical Data and Computer
Software clause at DFARS sec. 252.227-7013.
cisco Systems, Inc.
170 West Tasman Drive
San Jose, California 95134-1706
Cisco IOS Software, 1841 Software (C1841-IPBASE-M), Version 12.4(1c), RELEASE SO
FTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2005 by Cisco Systems, Inc.
Compiled Tue 25-Oct-05 17:10 by evmiller
Image text-base: 0x6007ECA0, data-base: 0x61480000
Port Statistics for unclassified packets is not turned on.
<stopped here>
=============
Normally, the following lines would have then been shown:
=============
Cisco 1841 (revision 6.0) with 114688K/16384K bytes of memory.
Processor board ID FHK11041226
2 FastEthernet interfaces
1 Serial(sync/async) interface
DRAM configuration is 64 bits wide with parity disabled.
191K bytes of NVRAM.
31360K bytes of ATA CompactFlash (Read/Write)
=============
I tried to swap the flash from "another" Cisco 1841, the "fault" Cisco 1841 was still with the same symptom. The "another" Cisco 1841 worked fine.
I tried to short all jumpers one-by-one on motherboard, and to de-attach all cards from slots and boot it up again but no help.
Any idea?