Intel Dual Core Processors Advance System Clock When Playing Sounds Options

[Guest curt.goodhart@navy.mil]

This is an amazing and troubling problem. It seems to relate to

Windows XP and dual core processors. Simply put, playing a sound

advances the system clock. I've seen extremes of about 6 to 10

seconds per minute. I suspect the problem is XP/Intel/MS related.

 

Our PC is a double dual core Intel Xeon: a Dell Precision 690 (which

has 2 Dempsey processors, Xeon 5050 series). We are running XP Pro

OS

've also seen this on another offbrand PC with a Core 2 processor.

This does not happen on non-dual core processor machines. Executing

a

"playsound" command (which is in the winmm.dll) instead of beep has

the same effect (I suspect Beep probably executes a playsound

command).

 

 

One way I demonstrate this is with a very simple program in Visual

Basic 6. I have a timer that executes a Beep statement every 20

milliseconds. That's all.

 

 

It can also be demonstrated manually by repetitively playing a sound

from the Windows Sounds dialog.

 

 

If anyone would like to try to replicate this on your dual core

system

I would be very interested in your results. I can be contacted at

curt.goodh...@navy.mil.

 

 

Thank you,

 

 

Curt