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what do you think of this psu?

post #1 of 14
Thread Starter 
hey whats up all, i wanted to know if this is worth buying if i am going to overclock more efficiently (without crashes) lol

http://www.newegg.com/Product/Produc...82E16817159040
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post #2 of 14
looks good to me...not sure about coolmax...but the rails are good...
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post #3 of 14
Thread Starter 
Quote:
Originally Posted by metalkobra
looks good to me...not sure about coolmax...but the rails are good...
ya i wasnt sure either, but my friend who is insane in the overclocking field recommended the following brands...

antec, ocz, coolmaster, coolmax

I have another question, if a video card requires 26a on the 12v rail, and this psu has 18a on (2)12v rails, does that satisfy the 26a requirement. Should I look at (2)12v rails at 18a as 36a?
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post #4 of 14
Coolmax? Only two crapped out on me sofar.... one quite spectacularly in an older rig. A recent 550W version just shut down if I even put the slightest load on my system. My personal experience: no to Coolmax.

Some worthy alternatives:

Sunbeam NUUO SUNNU550-US-BK ATX12V/ EPS12V 550W Power Supply 100-120V CE, UL (CUL), TUV, CB, FCC, FIMKO, SEMKO, DEMKO, NEMKO - Retail $79.99 (very popular here, but no, I still don't like that low efficiency)
http://www.newegg.com/Product/Produc...82E16817709004

Antec TRUEPOWERII TPII-550 ATX12V 550W Power Supply 115/230 V UL, TUV, CB, FCC CLASS B, CUL - Retail $84.99 (have it in 2nd PC.. Love it! Rock solid).
http://www.newegg.com/Product/Produc...82E16817103931

And no, you CANNOT add up those rails. I added a picture from the Antec as an example. Dual 12V rails, 19A each, however total is 36A on the 12V rails (not 38A!). Make sure you always check the max combined load!!! This number should be given either in Amperes or in Watts (just divide by 12 in that case to get amperes.)
    
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post #5 of 14
Quote:
Originally Posted by sellmesanity
ya i wasnt sure either, but my friend who is insane in the overclocking field recommended the following brands...

antec, ocz, coolmaster, coolmax

I have another question, if a video card requires 26a on the 12v rail, and this psu has 18a on (2)12v rails, does that satisfy the 26a requirement. Should I look at (2)12v rails at 18a as 36a?
hahaha if he was insane into overclocking the last two wouldnt be there...get the PSU I have if you can save up a lil more, or get a sunbeam NUUO.
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post #6 of 14
Thread Starter 
havent you guys ever heard of active pfc? i hear it is very important in a power supplies. the coolmax has a 12v max of 420w...so in that case divided by 12 that is 35a. not too shabby.

this is the power supply that i have now, what do you guys think? in the cpu forum this was the weakest link of my overclocking venture:

http://www.newegg.com/Product/Produc...82E16817101508
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post #7 of 14
lmao...yeah thats a weak psu...

most PSU's have PFC so yes...weve heard of it...my psu has it.
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post #8 of 14
Active PFC is not really *very* important. Theoretically it increases efficiency and stability, which are advantages. The main reason why it is used though is because it is mandatory in the EU. However, any well built PSU from a reputable brand is very stable.

Coolmax, Coolermaster, etc, are just not reputable. Even if they have passed tests by websites and / or magazines, the specific demands we overclockers put on PSUs exceed these standard tests. Do yourself a favor, and save up a little more and go for the Sunbeam NUUO or the Antec PII (there are several other options, but these two are great PSUs)

Your current PSU is indeed not pulling it. 22A is not enough for overclocking your rig
    
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post #9 of 14
Thread Starter 
So no to the coolmax...i dont really trust that sunbeam thing but i am very familiar with antec. so the truepowers are better than the smartpowers?
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post #10 of 14
Speaking from personal experience, the truepowers are great.

The smartpowers are the "lower end" of the Antec line, the Truepowers are the no-nonsense PSUs, while the NEO line is the modular system stuff. I prefer my PSU to be no-nonsense, thus non-modular, solidly engineered, etc.

I have no personal experience with the NUUO, but it is popular here, that's why I mentioned it. As I said, I don't like it's low efficiency (at light loads even failing to meet ATX12V standards!).

For overclocking you want good, solid, powerfull PSUs. The Antec fits that definition
    
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