strange beep sound

[grasshopperbe]

i run mandrake 8.1 on a cyrix 266, 2 gig hd(seagate or maxtor)
after about 15-20 minutes after startup, i always get a short beep, like the bootup beep but it seems a little lower tone.
I cant think of any bios setting that cause this (too old mobo for temp monitors) ,it happens in every desktop (use kde windowmaker and blackbox) but nothing happens and i've worked for hours with it afterwards.
Does anyone have a clue where i should start looking for this?
dont know if this is of any importance, i built the mobo in an old 486 dx servercase (about twice the normal case size)
could there be any signal that sends a 'wrong ' signal to the pc speaker or so? just guessing here.

[OOPS!]

Hi,

Just a guess, but I'd look through my configs to see if anything is set to beep on startup/close. Do you have any cron jobs running?

OOPS!

[grasshopperbe]

heh, kinda newb here, what's a cron job?
ill go check my settings and run the process monitors (the ones from kde are good right?) to see what could be causing it
i forgot to say in my last post that it started happening after a reinstall (wasnt really happy with partitions i made, simply made backup and reinstalled)
thanks for helping me out

[OOPS!]

Hi,

Cron is a *nix program that enables you to automagically start and stop processes in the background. Say, like doing backups, or updates, or anything else that you might want to automate.

One thing I just thought of is to check your mail program and see if it set to automatically check for new e-mail. Some of them will beep on completion.

A process manager can help you track your mystery beep down. That's a good idea.

OOPS!

[grasshopperbe]

i found the process manager from kde . installed it and lookeda round a bit but i stil need to find out what causes the probem. thanks for your help. if i can find it ill let you know.