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PC Power & Cooling + MBM5

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ronin1967

Member
Joined
Oct 10, 2002
Location
Highland Park, NJ
Just installed a new PC Power & Cooling Turbo-Cool 524 ATX PSU.

Here is a screenshot of MBM5:

I notice some of the voltages fluctuate.
Vcore 1.78-1.79
Vagp 1.55-1.57
+3.3 3.34-3.36
+5.00 5.00-5.03
+12.00 12.41-12.47

Also my Vcore reads 1.79 but is set at 1.75 and my Vdimm reads 2.59 but is set at 2.50

Would how I have items connected effect these readings?

I have 2 hard drives connect to one lead.
I have 2 CD-ROMS(1 DVD and 1 CD-R/RW) connected to one lead.
I have the floppy the 2 front air intake fans and the CPU fan connected to one lead.
 

Yodums

Senior Member
Joined
Oct 5, 2001
Location
Ottawa, Canada
All I can think of is that your motherboard's reading isn't 100% accurate and reports it fluctuating. Perhaps someone else can chime in for some comments.
 

BaldHeadedDork

Member
Joined
Aug 18, 2002
I'll second what Yodums said. Software voltage measurements often report readings that are different than what actually exists in the lines. The most common example of this is the difference in readings between MBM (whatever revision) and the voltage measurements taken from the BIOS.

Any suspected powersupply problem needs to be verified with hardware testing. You don't need a $300 Fluke multimeter for this, a fifteen dollar digital voltmeter from Radio Shack will do just fine. Measure the power going into the 12/5/3.3v leads for fifteen minutes or so and track any variances you spot, then repeat with the tested components under load.

I don't think running two drives off of one lead will cause a voltage fluxuation in a PCP&C PSU. But, mostly out of force of habit (and illogical fear) I always run the CPU fan on its own lead.


BHD
 

larrymoencurly

Member
Joined
Jul 14, 2002
Quit your job, postpone any emergency surgery, even walk out in the middle of a haircut if you have to, and take care of those wild 0.6% voltage fluctuations right now, before it turns into another Chernobyl.
 

juliendogg

Member
Joined
Nov 29, 2001
Location
NC, USA
larrymoencurly said:
Quit your job, postpone any emergency surgery, even walk out in the middle of a haircut if you have to, and take care of those wild 0.6% voltage fluctuations right now, before it turns into another Chernobyl.


lol!
 

Tipycol

Member
Joined
Aug 20, 2002
Hehe...but I agree with what the others said here. And if your PSU is PC Power & Cooling, you should suspect the software and motheboard components before you even think the PSU is having any problems (if you consider .03V a problem)
 

nikhsub1

Unoriginal Macho Moderator
Joined
Oct 12, 2001
Location
Los Angeles
ronin1967 said:
Just installed a new PC Power & Cooling Turbo-Cool 524 ATX PSU.

Here is a screenshot of MBM5:

I notice some of the voltages fluctuate.
Vcore 1.78-1.79
Vagp 1.55-1.57
+3.3 3.34-3.36
+5.00 5.00-5.03
+12.00 12.41-12.47

All but the 12V lines are within the 1% regulation. To get a true reading of what's going on with the PSU you need to use a MULTIMETER, this takes the mobo out of the equation.