Bandalo said:
Hi, little help i need, sometimes 3.3 voltage downs to 2.8-2.7 it's
normal??, the system runs fine, no blue screen, no randoms reboots.
PCProbe (alarm)
P4 3200 @ 3600, DDR500, 3HD 200GB, Tagan 480W..... water cooled..
Help!. Thanks!!
Do you own a multimeter (voltmeter) ? You might check the
voltage with a separate meter, to make sure that this is not
a problem with PCProbe.
You can also go into the BIOS, when the computer starts, and
use the hardware monitor page in the BIOS to observe the voltage.
That will avoid any problems with the use of PCProbe.
If the voltage really dropped to 2.7V, I would think the computer
would crash. As far as I know, looking at my own P4C800-E, the
motherboard uses linear regulation methods, and Asus constructs
linear regulators out of quad op amps and MOSFETs. The DIMMs
are powered, by dropping the 3.3V source, to 2.5V or higher,
for the DIMMs. If the 3.3V source drops to 2.7V, it becomes
more difficult for the output of the DIMM regulator, to maintain
its voltage. So, I am hoping in this case, that the voltage
shown by PCProbe is not really that low.
You might consider uninstalling PCProbe, and installing MBM5
( mbm.livewiredev.com ). The P4C800-E is in the supported list:
http://mbm.livewiredev.com/comp/asus.html
If you are still seeing voltage dips, in the BIOS and while
using MBM5, then you might consider replacing the power
supply. Unless you can think of another reason, why the
computer is drawing excess current from the 3.3V supply.
(Sometimes a misplaced brass standoff underneath the motherboard,
can short a conductor on the bottom of the board.)
HTH,
Paul
