PSU Dilemma

[Nosada]

Enermax Liberty 500W ATX 2.2 (ELT500AWT)
• +3.3V: 28A ±5% • +5V: 30A • +12V1: 22A • +12V2: 22A • Combined Power (5V+3.3V): 160W • Combined Power (12V1+12V2): 384W • Total Combined: 477.8W • -12V: 0.6A • +5V SB: 3.0A •

VS

Antec NeoHE 500, 500W ATX 2.0
• +3.3V: 23A ±3% • +5V: 17A ±3% • +12V1: 17A ±3% • +12V2: 17A ±3% • +12V3: 17A ±3% • Combined Power (5V+3.3V+12V): 456W • -12V: 0.8A ±5% • +5V SB: 2.5A ±5% •

It comes down to a 500W Antec with 3 17A 12V rails verssus a 500W Enermax with 2 22A 12V rails. I'd like to know which one of these is better at feeding an overclocked opteron + X1900XT. I'm not interested in XFire or SLI. Prices are nearly identical.

Thanks in advance,
Nos

 

[pengwin]

neo HE.


I haven Opteron 146, 5 case fans, 3 LED, X1900XT, 3 HDD's Abit AT8 and a SB Audigy 2. Runs stable.

 

[waylander]

Out of those two choices I'd go with the Antec as well.

 

[Muso]

If you're going to overclock, I would recommend the Enermax. The Antec is probably more efficient, but the enermax will provide more current to your CPU.

I would recommend the Antec Truepower II 550w over the neo 500w, though.

 

[waylander]

Hate to disagree with you (who am i kidding i love it) but the total amps on the dual 22amp 12v rail is only 32amps (384/12 = 32). I'm not sure what the total amps on the Antec (probably around 40amps) but with 3 rails at 17amps each it will be more than the Enermax. Most psu's with multiple rails have the ability to combine them when one rail pulls too much current.

I don't prefer Antec to Enermax, have one of each myself, but in this case the Antec is better.

 

[pengwin]

If you're going to overclock, I would recommend the Enermax. The Antec is probably more efficient, but the enermax will provide more current to your CPU.

I would recommend the Antec Truepower II 550w over the neo 500w, though.

heh, i love to disagree, someone get pissed, then i get to flame, and thats fun. here have a look. its halarious, guy gets ownt by me.


Back on topic:

Yah the NeoHE is better. it delivers 456W of power on the 12v rails. more amps = more power. Also i've been hearing enermax is goin down the toilet as far as quality. maybe just a rumor.

 

[Nosada]

Thanks for the swift replies everyone. The NeoHE seems like a decent choice indeed. I've checked in on the Antec TPII 550, but for some reason it's 40€ (50$~) more expensive.

I'm a layman when it comes to all that's electricity, so I was wondering this about these PSU's: The 12V rail supplies both the CPU and GPU (among others) correct? So two 22A rails would supply stable current to both of them. However, the NeoHE has 3 rails. Does this mean that one rail supplies the CPU, another the GPU and the third one is idle except for some other pieces of hardware? Or does it work another way? Can the rails be combined to supply added Amps to one item? fe: one 17A rail for the CPU and two 17A rails for the (powerhungry) GPU?

Thanks again for the help,
Nos

 

[pengwin]

Thanks for the swift replies everyone. The NeoHE seems like a decent choice indeed. I've checked in on the Antec TPII 550, but for some reason it's 40€ (50$~) more expensive.

I'm a layman when it comes to all that's electricity, so I was wondering this about these PSU's: The 12V rail supplies both the CPU and GPU (among others) correct? So two 22A rails would supply stable current to both of them. However, the NeoHE has 3 rails. Does this mean that one rail supplies the CPU, another the GPU and the third one is idle except for some other pieces of hardware? Or does it work another way? Can the rails be combined to supply added Amps to one item? fe: one 17A rail for the CPU and two 17A rails for the (powerhungry) GPU?

Thanks again for the help,
Nos

the rails saty seperate.

since is modular. the cables that are built into the PSU use 1 rail. then between the 5 plugs on the PSU the other 2 rails are split. 1 rail covers slots 1 and 2 and the last rail covers slots 3,4,5. if needed i think they can combine to give more power to certain things that need it.