[c-nsp] 1841 dumps to rommon only on power failure

[techtalm at gmail.com]

Please share your config and dir command for your flash, it's probably
related to the location of the image file.

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Vinny Abello
Sent: יום ב 18 יולי 2011 06:58
To: cisco-nsp at puck.nether.net
Subject: [c-nsp] 1841 dumps to rommon only on power failure

Got an interesting problem I thought someone else might have experienced. I
have an 1841 in my home that I've used for a while. 
Recently (probably within the past year) I noticed that when it looses
power, the next time it powers on it doesn't boot properly and just gets
dumped to rommon. This problem may have existed far longer as it used to be
on a UPS, but now is just on a surge protector. I know what everyone is
going to say, your config registers aren't set properly... Well, yes they
are. I've verified the config register being 0x2102 a dozen times now and
even reset it a few times to be sure. The odd thing about this is if I
simply reboot it again, it starts fine. Even if I power cycle it with the
rocker switch it boots up fine. I literally cannot reproduce the problem by
powering it off and back on, yet every time there is a power failure, it
fails to load IOS and a reboot is the quick fix. This kind of stumped me
having used Cisco routers and switches of all types for many many years now.
The only thing I could think of is that somehow the lack of power for an
extended period is causing it. Could this behavior be caused by the battery
on the main board being too low of voltage? I think it was rated for 3.3
volts and measuring slightly over
3 volts but my memory may be foggy on that. Any other thoughts (other than
put it on a UPS like it used to be)? :)

Thanks for any thoughts...

-Vinny
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