Speaker is controlled by the BIOS and no manufacturer that I know of makes a direct 
option in the BIOS to turn it off and on.  Some BIOS' will have a setting for silent 
boot which will turn off visual and audio information when booting so check for that 
in the BIOS.  It's possible that the driver circuit/amplifier on the motherboard 
is damaged and won't work at all (or the speaker is damaged).  Windows will use the 
system speaker for various alerts if no sound card is installed, so if you disable 
the sound card and you still get no beep alerts then the motherboard or the speaker 
could be damaged..

If you can do basic or other types of programming and know the address of the speaker, 
you can write a small utility (or find one on the web) to test the speaker to see 
if it works otherwise, but not an easy way to use, or test it if you aren't experienced 
in the deeper part of programming and Windows control.







On Monday, March 31, 2008 at 4:35 am, Jeno wrote:

>I have this old (4-5 YR) clone machine which runs OK but it gives no POST beep. 
It 

>has an internal speaker connected to the motherboard speaker jack. Also, external 

>speakers off the sound card work OK as well. I have no idea how much this machine 

>has been modified/abused. Is there a BIOS setting or DOS-based driver, etc that 
makes 

>internal speakers work? Thanx. 

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