Power Supply Voltage problem!?!?

  • Thread starter Thread starter Sean
  • Start date Start date
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Sean

Hi,
I've noticed ever since upgrading to a P4 I've had stability problems,
especially with neverwinter crashing to desktop during the game... I decided
to check the power supply voltage output and this is what I found:

Core 0 1.89V
Core 1 1.49V
+3.3 2.59V
+5.00 4.97V
+12.00 11.98V
-12.00 -12.68V
-5.00 -5.09V

Now to me the +3.3V seems VERY wrong! .. I've never dealt much with power
supply voltages so does anyone know if there is something wrong here and
whether it is motherboard related or powersupply related!?

Those voltages were read from Motherboard Monitor 5

Skyhawk 400W Power Supply
Epox 4PCA3 Motherboard
P4 3Ghz


Thanks for any info!!!

Sean
 
Sean said:
Core 0 1.89V
Core 1 1.49V
+3.3 2.59V
+5.00 4.97V
+12.00 11.98V
-12.00 -12.68V
-5.00 -5.09V

Now to me the +3.3V seems VERY wrong! .. I've never dealt much with power
supply voltages so does anyone know if there is something wrong here and
whether it is motherboard related or powersupply related!?

Those voltages were read from Motherboard Monitor 5
Click to expand...

Read what the +3.3v output is at with a DVM *at* the PSU/MB connector.
 
I've tried using a voltmeter at the main ATX power connector on the mobo and
those voltages read correctly! (3.3v reads as 3.3v) ... any ideas now!? ..
could this be a motherboard problem? .. or is it the monitoring program's
problem!?

I'm so confused,

Sean
 
on epox

+3.3 = VDimm voltage. For example:

On Epox 8rda+ whit enermax 460w:

+3.3= 2.7
+5= 5.02
 
I would strongly recommend getting a name brand power supply that will be of
higher quality and have better regulated voltage outputs. Antec is an
excellent brand for PSU's.
 
Sean said:
Core 0 1.89V Core 1 1.49V
+3.3 2.59V +5.00 4.97V
+12.00 11.98V -12.00 -12.68V
-5.00 -5.09V

Now to me the +3.3V seems VERY wrong! ..
Click to expand...
I've tried using a voltmeter at the main ATX power connector on
the mobo and those voltages read correctly! (3.3v reads as 3.3v) ...
any ideas now!? ... could this be a motherboard problem? .. or is
it the monitoring program's problem!?
Click to expand...

Try configuring the monitoring program for different hardware or
install a different program. But gross discrepancies are common with
this kind of software, and if the 3.3V really was 21% low I doubt that
the computer would even boot.
 
Sean said:
I've tried using a voltmeter at the main ATX power connector on the mobo and
those voltages read correctly! (3.3v reads as 3.3v) ... any ideas now!? ..
could this be a motherboard problem? .. or is it the monitoring program's
problem!?
Click to expand...
=====

Just to throw you a curve, my 3.3 reads at 1.52

TFM®
 
DaveW said:
I would strongly recommend getting a name brand power supply that will be of
higher quality and have better regulated voltage outputs. Antec is an
excellent brand for PSU's.
Click to expand...

Agreed. best bang for the buck, too. PCP&C and Enermax are terrific, too,
but you'll pay more. The Antec PSes are every bit as good, IMHO.
 
Hackworth said:
Agreed. best bang for the buck, too. PCP&C and Enermax are terrific, too,
but you'll pay more. The Antec PSes are every bit as good, IMHO.
Click to expand...

Sean

If reading in Windows using MOtherboard MOnitor than the 3.3v is
actually the VDIMM. Overall the voltages look ok. For stability
issues try these tips:

If you are having trouble with stability try the following multi-step
procedure.

1) Update to the latest BIOS from our website if possible (if you have
not already done so).
2) Load the BIOS defaults (optimized or fail-safe).
3) Shutdown and remove all cards and devices EXCEPT for video, RAM,
CPU, CPU heatsink/FAN.
4) Ensure your CPU temperature remains within 30-55 Degrees C. Check
in the CMOS or use USDM for this information.
5) Check that your power supply is ok for your particular processor.
We generally suggest 350-400W or better.
6) Set all voltage and clock jumpers to the factory default.
7) Retest.

8) If you use a variable RPM fan ensure its set for full speed.

9) If using AGP set the AGP aperature size to 64M in the BIOS.
 
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