The problem appears to be solved. It seems there was a setting in the
BIOS  to tell the system about registered SDRAM that got reset.

Jamy  

To:   	m0n0wall at lists dot m0n0 dot ch
 From:  	Vincent Fleuranceau <vincent at bikost dot com>
 Subject:  	Re: [m0n0wall] Help with troubleshooting reboot problem, please.
 Date:  	Fri, 18 Mar 2005 20:06:54 +0100

>> When it happens there are three beeps in succession, a pause then one
>> more .

Of course: it's "v" in Morse Code Alphabet ;-)
(hint: the last beep is a dash.)

-- Vincent