Hi Ky!
> HaHa! That sounds like something that happened here! I could hear a low
> rumbling in the Living Room. Computer in there is off; there is an audio amp
> with a fan but that's off (checked with my hand for a breeze).
> Heard the noise for several days -- same level: constant low-level
> rumble.
> Finally had to go into the basement for something: ceiling fan had been
> left on in the room below the Living Room! I was hearing the vibration!
KM> Similar story... first summer here, why do I keep hearing a fan?
KM> After some stumbling around, located it... on the roof. Did not
KM> know this house had an attic exhaust fan that comes on
KM> automagically at some too-high-for-the-attic temperature. (Turns
KM> out it also has a manual ON switch.)
At least that was a positive surprise. :)
> KM> Turned off CPU overheat alarm in BIOS. No more beeps!!
> KM> Moonbase does not overheat, far from it. Dunno why the alarm
> KM> setting was on. Probably hadn't looked in the BIOS in ten years,
> KM> let alone fiddled with anything. Mind of its own? too many dead
> KM> hellspawn gumming up its brain??
> Maybe during a boot the CPU reached an abnormally-low heat setting,
> triggering the alarm. I've notice this computer will heat up
KM> I think more likely CMOS battery went dead (who knows when it was
KM> last changed, the board is now 19 years old) so it reverted to
KM> defaults. Since I have no reason to care about date on that box,
KM> and everything else is default, I wouldn't notice dead CMOS
KM> battery... for a looooooooooong time....
That's probably what happened. Still, at one time the CPU hit the alarm
point, but possibly that was altered as the battery failed. Low battery voltage
can do strange things.
> immediately after a reboot and settle back to normal. I'm thinking the
KM> That's because right after bootup, it's BUSY. First loading the
KM> OS, then whatever other crap. Setting up the network connection
KM> is surprisingly CPU-intensive. If your UPS lets you monitor power
KM> output, you can see a big spike there as it goes through the boot
KM> process, then drop down to idle power draw.
Probably more that than the CPU heating up from the fan being off for a
few seconds. Sort of forgot about all those boot-up events. ...HDD
Activity LED blinking/flashing randomly? Good:doing something and not
stuck.
> At least you noise was constant -- mine might not occur again for 20-30
> minutes!
KM> Yours is more weird than mine. :D
I win this contest! ...All sorts of electronics in the area of where
the sound is coming from; guess the good news is doesn't seem to be
adversely affecting anything - yet. May be nothing more than bearings
in a fan clinking together.
KM> Do you have a water softener? they do weird things at odd
KM> intervals.
No water softener. And yes, the HVAC vent is also in the area from
which I hear the noise; we have been in the basement but don't hear the
noise, nor any other part of the house.
» BarryMartin3@ «
» @MyMetronet.NET «
...
"Did you sleep well?"
"No, I made a few mistakes."
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