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Thermaltake or Antec PSU (please read my questions)

post #1 of 12
Thread Starter 
I have a choice between two PSUs. Which one would you get ?

- Thermaltake W0067 PurePower 460W with Active PFC (http://www.thermaltake.com/purepower...68/w006768.htm)

-Antec TPII TruePower 480W (http://www.antec.com/specs/TPII480_spe.html#)

Question 1) Does the Antec psu mentioned above include Active Power Factor Correction ? Is Active PFC important ?

Question 2) Both PSUs have dual 12V rails but why does the Thermaltake psu have (120mV and 200mV) whereas the Antec psu has (120mV and 120mV) on the dual 12V rails ?

Question 3) The Thermaltake psu has a hold-up time of 16ms whereas the Antec psu has a hold-up time of 17ms. Does the 1ms make a big difference ?

Question 4) Both PSUs have a single fan. Is it important to get a PSU with dual fans to help cool the system ?

Question 5) When installing a psu with dual 12V rails, how can one hook up the cpu to a rail and the fans to the other rail ? How to know which wires correspond to different rails ?
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post #2 of 12
ok, I'd go with either one lol they're both awesome power supplies, pfc is power factor correction I think. the dual 12v rails mean that it doesn't get bogged down by a buncha parts in the pc, it distributes the 2 rails equally I believe. for example if you have 2 7800gtx's in sli, and a lanparty mobo, it doesn't get loaded as easily as a single 12v rail would.
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post #3 of 12
Thread Starter 
Quote:
pfc is power factor correction I think
I know but how important is it in a psu nowadays.

Quote:
for example if you have 2 7800gtx's in sli, and a lanparty mobo, it doesn't get loaded as easily as a single 12v rail would.
You mean a psu with dual 12V rails each having 15A is better than a psu with a single 12V rail having 30A ?
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post #4 of 12
hmm.... lol I'm not really sure, the dual might be slightly better. I know that dual 12v rails are something to go after though, and pfc...I think that increases efficiency.
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post #5 of 12
Truepower, Thermaltake psus' aren't known to be teh greatest (far from it.)
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post #6 of 12
I would go with the Thermaltake. the specs are slightly better. Active PFC is nice to have but not really needed. It's a saftey thing.
As for Q#5...the psu is already split for the rails. 1 will run the mb and video card,the other will run the 4pin molexes. The Tt psu with 200mv on 1 rail is probably set with that rail to run the mb.
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post #7 of 12
the specs are better on the Antec, and there a more reputable psu company than thermaltake
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post #8 of 12
i'd get the 500w Thermaltake PSu on newegg. it was on sale yesterday for like $60 i'm pretty sure it's still there.
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post #9 of 12
Thread Starter 
Hmmm... opinions are divided so I'm still not sure which one to get.
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post #10 of 12
I'll break the tie in favor of Antec (until the next post which will likely tie things back up ). The Antec TPII series is a great product, and it's backed by excellent customer service (I fried an Antec PSU once, e-mailed the company at 1:00 AM, and received an e-mail and phone call by noon the next day). I wouldn't be too concerned about 1 ms either way; PSU testing is kind of iffy (lots of variations on the way manufacterers come up with their specs), so small differences aren't too meaningful. If you have good cooling in your case, the PSU more or less just has to worry about cooling itself. I wouldn't be concerned with having just one fan, particularly if it's a 120 mm one. Dual rails are definitely a nice features, splitting the power to the various components (as described above), and ensuring all of the components get stable power (voltages tend to dip a bit when PSUs are pushed hard, and having independent rails helps with that issue among other things).
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