From: jellybean stonerfish on 3 Jun 2010 19:00 On Thu, 03 Jun 2010 10:39:32 -0500, Kevin the Drummer wrote: > I wondered if I might be able to get at some fan controls via the BIOS, > and booted into that screen. I found another clue, the whirring is > exactly in time with the system clock, whirring just as each second on > the clock ticks by. > > The hard drives seem quiet enough, and not the source of whirring. The > case fans are quiet enough that I have to strain to hear them with my > ear right by them. My video card is fan-less. My power supply isn't > making the whirring sounds. > > What am I dealing with here? Do I have a motherboard that causes this? > Are the Zalman fans that I love in all my other systems being upset by > the Tyan motherboard? What else can I do to troubleshoot this? My next > random attempt, half in panic, would be to swap motherboards again. > > Thanks all..... > Put a straw in your ear and point it around in the case until you figure out where the sound is coming from.
From: Trevor Hemsley on 3 Jun 2010 21:33
On Thu, 3 Jun 2010 22:40:39 UTC in comp.os.linux.hardware, Kevin the Drummer <nobody(a)cosgroves.us> wrote: > bosco <boscopelone(a)yahoo.com> wrote: > > I am guessing you are hearing the cpu fan. You can verify by using an > > old paper towel cardboard tube. Use it as a directional hearing device > > with one of your case panels off. You should be able to locate the > > source easily. gl > > Excellent. I'll try that. Thanks! I wonder if you are hearing ACPI controlling the fan, adjusting the speed. No idea if there's a way to control how it does that but it might be an avenue to explore. -- Trevor Hemsley, Brighton, UK Trevor dot Hemsley at ntlworld dot com |