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is this voltage fluctuation acceptable?

F

fluxquantum

Platinum Member
hi everyone,

my system specs are in my sig. i was just wondering if this voltage fluctuation was acceptable or not. i used a multimeter to take voltage readings.

normal windows operations - 12.18v

intense gaming or benchmarking - 12.06v

any comments are appreciated. thanks. 🙂
 
normal windows operations - 12.18v

intense gaming or benchmarking - 12.06v
Click to expand...
🙂


Brag brag brag!!!!

Seriously, that's better than O.K. if you can still report the same with P95 or S&M!!

 
Originally posted by: maluckey
normal windows operations - 12.18v

intense gaming or benchmarking - 12.06v
Click to expand...
🙂


Brag brag brag!!!!

Seriously, that's better than O.K. if you can still report the same with P95 or S&M!!
Click to expand...

hi there,

with prime95 - 12.11v

with S&M - 12.07v

i guess that's pretty good, eh. 🙂
 
5% means 12.6V or 11.4V as your cutoffs.

3% for high end? I'd say 2% for midrange ones. OCZ Fortron easily achieve 2%. Seasonic is under 2%. Antec is about 1%.

As for readings, the only ACCEPTABLE way to read voltages is via a voltmeter. My software reported 11.65V, but my Seasonic says 11.98v....
 
Depends on the mobo as well. Th sensor only reports what it actually reads, not what voltage is at the source (PSU). After going through leads, traces, and the various components BEFORE the sensor, the voltage may be lower. A manufacturer may or may not calibrate the sensor for this..
 
Originally posted by: DLeRium
5% means 12.6V or 11.4V as your cutoffs.

3% for high end? I'd say 2% for midrange ones. OCZ Fortron easily achieve 2%. Seasonic is under 2%. Antec is about 1%.

As for readings, the only ACCEPTABLE way to read voltages is via a voltmeter. My software reported 11.65V, but my Seasonic says 11.98v....
Click to expand...

asusprobe reports 11.77v and sometimes 11.71v and the multimeter reports 12.18v during idle. so, this is a fairly big difference in readings.
 
3% for high end? I'd say 2% for midrange ones. OCZ Fortron easily achieve 2%. Seasonic is under 2%. Antec is about 1%.
Click to expand...

I deal with Antec as a customer (I do computer repair). Antec only claims 3%. I seriously doubt you'll find a PSU that's 1% in spec unless it's military grade.

 
Originally posted by: FlyingPenguin
3% for high end? I'd say 2% for midrange ones. OCZ Fortron easily achieve 2%. Seasonic is under 2%. Antec is about 1%.
Click to expand...

I deal with Antec as a customer (I do computer repair). Antec only claims 3%. I seriously doubt you'll find a PSU that's 1% in spec unless it's military grade.
Click to expand...


the tpII line is extrememly tight. i have 3 here now and all are within 1%. the idle on that particular unit is 11.99-12v.

they only claim 3% on the tpIIs but i've found them to be really tight. the cpu 12v is the same, just not pictured.
 
rise4310,

On IDLE as you mentioned, some PSU's will fluctuate all over the place (PC Power and Cooling, FSP to name a few). You should measure under a complex, maximum load and temperature to see the fluctuations and true voltage output.

 
give me a complex maximum load and i'll run it. all i could think of at the time was what you see- prime large with rthdribl while ripping a movie.

a lot of sites i've seen just slap on some prime or burn-in and call it loaded. i tried to involve the vga and an optical.

edit, just checked with my x2 3800@ 2700 1.44v, running dual F@H and rthdribl, 12v1 (cpu) is 11.94 and 12v2 is 11.97. rest of specs in sig.
 
Yeah,

It's HARD to load up all lines very well, and easy to OVERLOAD the +12v on an nVidia mobo chipset with nVidia GPU.

What you could to do is a large (7GB) file transfer between a few (I have 5) HDD while multi-burning a between DVD players and playing UT2004. All this while P95 is running in the background and encoding a DivX movie.

That should about do it. I have done the above, minus multi-burning a DVD (I single burned). The PSU was rather warm when I finished.
 
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