Jay Peterman said:
After installing the software I get this readout:
Power Fan below threshold (with zero flashing)
Chassis fan below threshold (with zero flashing)
Under settings it reads:
Power fan threshold 1200 RPM
Chassis fan threshold 1200 RPM
I looked at all the fans and they do initiate upon boot.
The probe software can only detect a fan if the fan has a tachometer
output. A fan with three wires has tacho output, one with two wires
does not. The only fan with a reasonable guarantee of having tacho
output, is the CPU fan.
High frequency beeping could be the overheat alarm. Using the probe
software, is the CPU temperature listed as being a "sky high" number ?
Maybe, another reason for crazy beeping would be if the Vcore for
the processor is out of whack.
Things to check:
1) CPU is actually overheating. Check that heatsink clip is secure
and that an effective heatsink compound was applied between CPU
and heatsink/fan.
2) Vcore is low. This could be caused by the CPU overloading the
circuit (CPU is failing). It could be caused by bad caps in the
Vcore circuit (check for bulging tops on the electrolytic caps
near the processor, also look for signs of leaking or brown stains
on the motherboard surface from the electrolyte). If one capacitor
is failing, the others will eventually follow. Their failure can
short out Vcore. Using the Vcore value measured in the BIOS or in
Asus Probe, compare the value to Vcore printed on the box the
processor came in, or look on processorfinder.intel.com, for data
on the processor you bought.
3) Connector problem. On a P4, there is a 2x2 connector for processor
power (actually, there are two connectors next to one another, and
you can use both or either if you wish, without a problem). Make
sure the connector is fully seated. Pull the plug out and look for
signs the pins are burnt or the plastic on the connector is melted.
If a connector becomes ohmic (i.e. a bad connection), power will
get dropped inside the connector, and the heat will melt the
plastic. The only way to permanently correct a connector problem
is to replace it. On the PSU end, this is easy, as you can buy a
new one. On the motherboard, it means doing some soldering. You can
buy Molex Mini-Fit Jr connectors at Digikey, for example. I don't
know if all the part numbers necessary for repairing computers are
at Digikey or not.
For many people, reseating the connectors from PSU to motherboard
is enough to fix it, at least for a few months.
The 20 pin connector can also cause problems, so pull it out and
examine the pins on it as well. Some people suffer from low +3.3V,
and that would be related to the 20 pin connector.
HTH,
Paul
