Cisco Router 1841 can't boot

[soksamrong.vann]

Hey. Guys my router 1841 have issue can't boot ios, so can you give me for the solution to fix it?

[Leo Laohoo]

my router 1841 have issue can't boot ios

Please elaborate what you mean by this?  

No display on the console? 

Router goes into ROMmon? 

Router doesn't power up? 

[soksamrong.vann]

Please my report issue

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*Oct  4 04:18:14.511: %SYS-5-RELOAD: Reload requested  by console. Reload Reason: R                                                                                     eload Command.c1841 platform with 262144 Kbytes of main memory
Main memory is configured to 64 bit mode with parity disabled


Readonly ROMMON initializedþ
System Bootstrap, Version 12.4(13r)T, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 2006 by cisco Systems, Inc.

Correcting the backup nv_flash
PLD version 0x10
GIO ASIC version 0x127
c1841 platform with 262144 Kbytes of main memory
Main memory is configured to 64 bit mode with parity disabled


Readonly ROMMON initialized
c1841 platform with 262144 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: 0xcb80
program load complete, entry point: 0x8000f000, size: 0xcb80

program load complete, entry point: 0x8000f000, size: 0x1d51190

System Bootstrap, Version 12.4(13r)T, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 2006 by cisco Systems, Inc.
 platform with 262144 Kbytes of main memory
Main memory is configured to 64 bit mode with parity disabled


Readonly ROMMON initialized
 platform with 262144 Kbytes of main memory
Main memory is configured to 64 bit mode with parity disabled


Readonly ROMMON initialized
 platform with 262144 Kbytes of main memory
Main memory is configured to 64 bit mode with parity disabled


Readonly ROMMON initialized
boot: cannot open "flash:"
boot: cannot determine first executable file name on device "flash:"

System Bootstrap, Version 12.4(13r)T, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 2006 by cisco Systems, Inc.
PLD version 0x10
System Bootstrap, Version 12.4(13r)T, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 2006 by cisco Systems, Inc.
PLD version 0x10
GIO ASIC version 0x127
c1841 platform with 262144 Kbytes of main memory
Main memory is configured to 64 bit mode with parity disabled


Readonly ROMMON initialized

*** TLB (Store) Exception ***
Access address = 0x27100
PC = 0xbfc24b00, Cause = 0x800c, Status Reg = 0x30410002
rommon 1 >

[Leo Laohoo]

boot: cannot open "flash:"
boot: cannot determine first executable file name on device "flash:"

Three suspects:

1.  There is no CF media present; 

2.  The CF is a third-party non-supported variety; 

3.  CF port is faulty

[soksamrong.vann]

how to solved it? can give me step by step!

[Leo Laohoo]

how to solved it? can give me step by step!

Seriously?

I've already provided THREE (3) possible reasons why the router has rebooted into ROMmon.  

Which of the three is not clear?