Posted by Moe on September 23, 2007, 1:52 pm
Is it worth it, when buying a new power supply for the computer, to
worry about active power correction factor? I run my computer around
15 hours a day, sometime I just leave it on. I suppose I could put
the kill-a-watt on it and come up with the average watts use and try to
size a power supply to it, but I'm wondering if something like this
wouldn't be the way to go. 60 bucks shipped to the front door total for
this one, there are others with APFC. So is this like those squiggly
light bulbs and a good deal or not?
Antec Earthwatt 430W 80-Plus Certified Power Supply
Posted by Eeyore on September 23, 2007, 2:06 pm
Moe wrote:
> Is it worth it, when buying a new power supply for the computer, to
> worry about active power correction factor?
Not if you're on a normal domestic electricity supply. The amount you pay isn't
affected by power factor.
Graham
Posted by danny burstein on September 23, 2007, 2:09 pm
>Moe wrote:
>> Is it worth it, when buying a new power supply for the computer, to
>> worry about active power correction factor?
>Not if you're on a normal domestic electricity supply. The amount you pay isn't
>affected by power factor.
Althoug it may have an effect on run time when
plugged into a UPS.
--
_____________________________________________________
Knowledge may be power, but communications is the key
dannyb@panix.com
[to foil spammers, my address has been double rot-13 encoded]
Posted by Martin Riddle on September 23, 2007, 4:47 pm
> Is it worth it, when buying a new power supply for the computer, to worry
about active power correction factor? I run my
> computer around 15 hours a day, sometime I just leave it on. I suppose I
could put the kill-a-watt on it and come up
> with the average watts use and try to size a power supply to it, but I'm
wondering if something like this wouldn't be the
> way to go. 60 bucks shipped to the front door total for this one, there are
others with APFC. So is this like those
> squiggly light bulbs and a good deal or not?
> Antec Earthwatt 430W 80-Plus Certified Power Supply
I have this power supply, note that its 80% at 50% load and above. Slightly less
under 50%.
Main advantage is that there is less heating in the distrubution lines with PFC.
And less AC harmonics ( as long as its CE
approved)
And, NO, you will not likely save on electricity costs unless your house meter
does not like high PF's.
Good link ... http://www.dansdata.com/gz028.htm
Cheers
Posted by z on September 23, 2007, 11:54 pm
@newsfe13.lga:
> Is it worth it, when buying a new power supply for the computer, to
> worry about active power correction factor? I run my computer around
> 15 hours a day, sometime I just leave it on. I suppose I could put
> the kill-a-watt on it and come up with the average watts use and try to
> size a power supply to it, but I'm wondering if something like this
> wouldn't be the way to go. 60 bucks shipped to the front door total for
> this one, there are others with APFC. So is this like those squiggly
> light bulbs and a good deal or not?
> Antec Earthwatt 430W 80-Plus Certified Power Supply
I never skimp on the power supply for my computers. Even if it won't save
you much power, the PSU is one of the more common failure points in a
computer. Antecs are pretty good usually.
Also a bad PSU can throw strange voltages into your comp and fry parts ..
dono. I just always get the best PSU I can afford whenever I build a comp
-- much rather skimp on teh case or other parts (DVD ROM ETC) rather than
the PSU.
my 2 cents !
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> worry about active power correction factor?