[ltp] The meaning of beeps?

[linux-thinkpad@linux-thinkpad.org]

---- Timothy Murphy <gayleard@eircom.net> wrote: 
> 
> Could some kind soul remind me what two beeps, a second or so apart,
> mean as an error code at boot-time
> (or point me to an URL where the beep errors are listed)?
> 
> I have a T23 whose screen stopped functioning a year or so ago,
> and which I left on my re-cycling shelf.
> Then it occurred to me recently that it might be possible to use it
> as a remote server.
> 
> I tried to get the screen working at the time
> by transplanting the screen from a T21 whose motherboard had cracked.
> This didn't work, and unfortunately I don't remember the exact state
> I left the machine in.
> (I do remember there were a surprising number of screws left over!)
> 
> Apart from wondering about the meaning of two beeps,
> I was also wondering if it is in fact possible to run a ThinkPad
> with the screen disconnected?
Yes, have done this many times, more that one system has
been running 24/7/365 for over two years 
> 
> And my third question is: If it is possible to run a ThinkPad in this way,
> what would be the best way of communicating with it?
Use an external monitor on the VGA port.
> 
> The reason these probably foolish thoughts arose
> was that I have been looking around for a "green" server
> using as little current as possible,
> and I've been quite struck by the efficiency of the ThinkPad and charger
> in this respect.
> The charger seems to turn off completely when the battery is full,
> while my desktops seem to use considerable current 
> even when they are sleeping.
> 
> I should say that when I start this broken machine,
> I do see something very dim on the screen;
Play with a flashlight,trying different angles and if you
can see the video it means that you have either a bad 
inverter, bad backlight or both
> and also the hard disk light comes on for a second.
> (I tested the hard disk on another machine, and it works fine.)
> 
> As always, any suggestions or advice gratefully received.
> 
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