High Amperage Single Rail PSU's

davidhammock200 · Oct 20, 2006

Updated October 19, 2006

Input, Suggestions & Recommendations Wanted!

NoxTek · Oct 20, 2006

What the signifigance of the ones listed in blue font color? Higher recommendation?

I'm going for the Silencer 750 this weekend.

davidhammock200 · Oct 20, 2006

Blue Falcon said:
What the signifigance of the ones listed in blue font color? Higher recommendation?

I'm going for the Silencer 750 this weekend.

"Best Bang for the Buck" recommendation.

hardc0re · Oct 20, 2006

I'm a bit confused... Arn't dual or quad rails suppose to act as one? The reason for splitting them is to provide quieter operation and more stable power. Is this a proven fact that single +12v rails perform better for upcoming high-drain graphics cards?

MC FLMJIG · Oct 20, 2006

I'm a bit confused on that as well. Then what is the purpose of 4 rails?

Good post and thanks.

Great Thread btw!

davidhammock200 · Oct 20, 2006

hardc0re said:
I'm a bit confused... Arn't dual or quad rails suppose to act as one? The reason for splitting them is to provide quieter operation and more stable power. Is this a proven fact that single +12v rails perform better for upcoming high-drain graphics cards?

No most multi-rail have over-current protection (OCP) on each rail, which is fine & good most of the time.

Farva · Oct 20, 2006

sticky?

lots of good info here, especially for the new technologies coming out.

Chernobyl1 · Oct 20, 2006

They are separate rails to provide more stability.
The higher the current flowing through any connectors, the more voltage is dropped at the connector (due to impedance mismatch and bad connections).
The same applies for the resistance/reactance of the wire, voltage will be dropped, the longer the wire the more the drop.

As the current flow varies (which it can do wildly), the voltage at the end of the wire can fluctuate a lot causing instability.

davidhammock200 · Oct 20, 2006

In theory perhaps, but not in this reality with these PSU's!

The voltages on the Zippys & PC P&C's are rock stable100% of the time!

Chernobyl1 · Oct 20, 2006

The theory is sound in practice too.

If you have good connections and well built components being powered, you are unlikely to suffer problems.
A bad connection is known to make the system unstable, the above is one reason why.
The voltage drop over the wire can compound the issue in high current situations.

[Spectre] · Oct 20, 2006

protias said:
sticky?

You might want to read the stickies first

Farva · Oct 20, 2006

Spectre said:
You might want to read the stickies first

ok spectre, u win this round

im not keeping up on the stickies
/sigh

unhappy_mage · Oct 20, 2006

I own an Enermax EG651P-VE. Really nice power supply, well worth the cost even though I bought it when it was $123. Powered 14 drives with no problems, albeit with a 5v-based system.

Also, the efficiency on the 550W sparkle you linked in blue is only specified at 63%! Ouch! The Enermax is specced at 72% efficiency. I can't find a review of either supply that actually tests efficiency, though, so it could just be manufacturer BS.

davidhammock200 · Oct 20, 2006

unhappy_mage said:
I own an Enermax EG651P-VE. Really nice power supply, well worth the cost even though I bought it when it was $123. Powered 14 drives with no problems, albeit with a 5v-based system.

Also, the efficiency on the 550W sparkle you linked in blue is only specified at 63%! Ouch! The Enermax is specced at 72% efficiency. I can't find a review of either supply that actually tests efficiency, though, so it could just be manufacturer BS.

On anything with more than 6 HDD's you need to always spec a single rail.

HDD's can pull close to +12V@3A for a couple of seconds during spin-up & that can over load a rail, causing some PSU's to shut down.

Oklahoma Wolf · Oct 20, 2006

unhappy_mage said:
Also, the efficiency on the 550W sparkle you linked in blue is only specified at 63%! Ouch! The Enermax is specced at 72% efficiency. I can't find a review of either supply that actually tests efficiency, though, so it could just be manufacturer BS.

The FSP/Sparkle 550W is an old design, at least as old as the PC P&C 510W. 63% sounds about right for it.

I'm uncertain I would even recommend the Antec - it's a CWT model likely full of Fuhjyyu. I should hope that this EPS model is better cooled than most other CWT Antecs.

factory81 · Oct 29, 2006

I am going to go with a Silencer 610 I think. If I am going to upgrade....mys well get it done and make sure I get something stable.
E6600 / g80 air cooling overclock project, can't risk a shotty PSU.
Unless someone can find a better deal....everything seems to be tri / quad rail in thise price range.

davidhammock200 · Oct 29, 2006

factory81 said:
I am going to go with a Silencer 610 I think. If I am going to upgrade....mys well get it done and make sure I get something stable.
E6600 / g80 air cooling overclock project, can't risk a shotty PSU.
Unless someone can find a better deal....everything seems to be tri / quad rail in thise price range.

I would go Corsair 620W before going with the PC P&C 610W, now the PC P&C 750W is a whole new ball game.

clubsport · Oct 29, 2006

factory81 said:
I am going to go with a Silencer 610 I think. If I am going to upgrade....mys well get it done and make sure I get something stable.
E6600 / g80 air cooling overclock project, can't risk a shotty PSU.
Unless someone can find a better deal....everything seems to be tri / quad rail in thise price range.

For my opinion I would go for the 750 Silencer then the 610 because there both
single rail and are excellent psu's?

davidhammock200 · Oct 30, 2006

clubsport said:
For my opinion I would go for the 750 Silencer then the 610 because there both
single rail and are excellent psu's?

They are both excellent PSU's, however if the PC P&C 610W is enough then the Corsair 620W will also be enough &
the Corsair is cheaper, modular, quieter, smaller & has a 5yr warranty.

NoxTek · Oct 30, 2006

Picked up my Silencer 750 from Fry's yesterday!

Probably as sexy lookin' as a PC Power and Cooling unit can get....

factory81 · Oct 30, 2006

Corsair 620w is more then the PC&C silencer 610.

unhappy_mage · Oct 30, 2006

factory81 said:
Corsair 620w is more then the PC&C silencer 610.

Corsair 620: $145
PCP&C 610: $155

Where do you see the PCP&C for less? Finding the Corsair for more is trivial

davidhammock200 · Oct 30, 2006

unhappy_mage said:
Corsair 620: $145
PCP&C 610: $155

Where do you see the PCP&C for less? Finding the Corsair for more is trivial

Google/Froogle has the Corsair 620W from $150.

unhappy_mage · Oct 30, 2006

davidhammock200 said:
Google/Froogle has the Corsair 620W from $150.

Huh? First, I got that price from Froogle. Second, I was asking him if he had a link to somewhere that sells the PCP&C cheaper. Of course you can find the Corsair for a higher price elsewhere; I remarked on that in my post.

I am utterly confused as to what your post means and why you posted it. Enlighten me.

davidhammock200 · Oct 30, 2006

unhappy_mage said:
Huh? First, I got that price from Froogle. Second, I was asking him if he had a link to somewhere that sells the PCP&C cheaper. Of course you can find the Corsair for a higher price elsewhere; I remarked on that in my post.

I am utterly confused as to what your post means and why you posted it. Enlighten me.

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