SLI and Crossfire kicking the crap out of PSU's

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03-07-2006, 08:17 AM
perkam

Unfortunately the Newegg reviews for antec neohe arent so great :(

http://www.newegg.com/Product/Custra...82E16817103941
03-07-2006, 08:46 AM
The Stilt

Quote:

Originally Posted by perkam

Unfortunately the Newegg reviews for antec neohe arent so great :(

http://www.newegg.com/Product/Custra...82E16817103941

Most of them are talking about old NeoPower, not NeoHE series.
The original NeoPowers are made by Antec, these are made by Seasonic ;)
03-07-2006, 08:49 AM
nn_step

Quote:

Originally Posted by The Stilt

Most of them are talking about old NeoPower, not NeoHE series.
The original NeoPowers are made by Antec, these are made by Seasonic ;)

I know The Antec NeoPower was the greatest Antec PSU ever..:fact:
as for the NeoHE.. the qualtiy control on them is far less and they are made for cheap upgraders.. and considering the fact how freaking light they are.. I don't trust them and niethier should anyone else..:fact:
03-07-2006, 09:21 AM
The Stilt

Quote:

Originally Posted by nn_step

I call bull:banana::banana::banana::banana:..
Because I know The Antec NeoPower was the greatest Antec PSU ever..:fact:
as for the NeoHE.. the qualtiy control on them is far less and they are made for cheap upgraders.. and considering the fact how freaking light they are.. I don't trust them and niethier should anyone else..:fact:

Higher efficiency = less cooling needed = less weight.
Have you ever tried to run SLI or CrossFire setup with Antec NeoPower?

Fortron is definitely one of the best power supply manufacturers in the world...
Do you know how much does Fortron Epsilon 700W psu weight? It it also pretty light since it has pretty high efficiency ;)
03-07-2006, 09:23 AM
nn_step

By high effieciency you mean low redundancy and bad tolerances.. which is unacceptable..
03-07-2006, 09:29 AM
Dumo

Antec 550 dead on action here with only single 6800Ultra and FX55 overclocked to the hilt:(
Nooo...Don't even put Antec Neo near SLI/CF rig:)
03-07-2006, 01:07 PM
revenant

lol.. Oi.. I am sorta glad I didn't go dual core.. I'm likely stressing my quad rail silverstone out as is...
03-07-2006, 03:21 PM
situman

People still use Antecs? When Compusa starts selling them, it made me think twice.
03-07-2006, 03:24 PM
nn_step

Quote:

Originally Posted by situman

People still use Antecs? When Compusa starts selling them, it made me think twice.

Yeah.. they are good for the price.. they aren't PCP&C but they are acceptable for what is demanded of them
03-07-2006, 03:40 PM
uOpt

Quote:

Originally Posted by Dumo

Lets go back to topic:)

So.... single 12V psu is better to run SLI/CF?

That is certainly the case.

I need to power a Supermicro H8QC8 with 4x875. It works fine with my single-rail OCZ 520W. But of course I won't do 8-core prime at full power with that PSU. To actually run with the 520W I downclock and undervolt the CPUs.

So I ordered a custom build of PCP&C 1 KW (I need two native 8-pin EPS12V). Apart from them first sending a wrong build, the replacement does not power up the above board. Tech support figured I overload one of the 12V rails (it has 3) on powerup and shrugged, giving me a refund.

I now ordered an Athena 850W, which has 48 A on the 12V, and a switch to put the 12V on one or two rails.

And yes, I will burn it in for a week before trusting my Supermicro with it...

P.S. I tried some of my socket 939 overclocks with the PCP&C 1 KW. Compared to the OCZ 520W there was no gain.
03-07-2006, 04:24 PM
perkam

Quote:

Originally Posted by nn_step

I know The Antec NeoPower was the greatest Antec PSU ever..:fact:
as for the NeoHE.. the qualtiy control on them is far less and they are made for cheap upgraders.. and considering the fact how freaking light they are.. I don't trust them and niethier should anyone else..:fact:

nn_step, post edited :) Pls take a look at who you're talking to before making claims of bs.

Antec has a long way to go in proving people that it is up to par with PCP&C, OCZ, Zippy and Seasonic. Enermax is doing it as we speak.

Check out the Enermax 500W Liberty review in the Xtreme Reviews. That thread alone has been the cause of the popularity of the Enermax 500/620W liberty at XS and the reason Enermax rep joined up to answer some of our questions...they've started to come around :) And Antec will need to do so again, i wouldn't mind if they used some snazzier marketing either. :p 22 Amps per rail on dual rails is a feature you can appreciate :)

Perkam
03-07-2006, 04:41 PM
Dumo

Quote:

Originally Posted by uOpt

I now ordered an Athena 850W, which has 48 A on the 12V, and a switch to put the 12V on one or two rails.

Same here:toast:
03-07-2006, 05:32 PM
chunkylover77

For anyone interested in quiet and performance you might want to wait on the new PCP&C Silencers coming in April.
03-07-2006, 05:47 PM
STEvil

Quote:

Originally Posted by The Stilt

According the tests made with "The Undertaker" (bunch of power resistors), it can supply 730W without any problems. For 12V rail I used eleven resistors which consumed 4.42A each (11.96V x 4.42A = 52.86W). 11 x 4.42A = 48.62A.

For 5V rail I used three resistors that took 10.225A each (4.82V x 10.225 = 49.28W).

So the overall combined load was 729.29W. Pretty well for 550W PSU ;)
My Etech PM-300 energy meter showed that the psu took 781W from the plug. It means that the effiency is even better than Antec states 85% vs. 93%

Even the 5V rail drops slighty, you can always perform an old school sense mod.

10.225 x 3 = 30.675A ;)

30.675A x 4.82V = 147.8535w
03-08-2006, 03:10 AM
masterofpuppets

Glad I'm not gonna be running SLi or Crossfire, I'd be a bit paranoid about the safety of my hardware, even with this OCZ 520.
03-08-2006, 03:43 AM
Micutzu

Anyone tried the Silverstone ST56ZF yet ? It has that PCP&C something ... solid built, no bling-bling, all black, single 80mm fan. It also comes with one beefy 12V rail, pushing 38A sustained and 45A peak, dual PCI-e connectors, and a sexy chopper inside.
I'll throw FX-60 and Crossfired X1900XT's at it tonight, to see how it does ... the only think lacking is the adjustable rails.

http://img78.imageshack.us/img78/460...e0034rz.th.jpg http://img126.imageshack.us/img126/7...e0045xf.th.jpg http://img129.imageshack.us/img129/7...e0056sv.th.jpg http://img228.imageshack.us/img228/1...e0063nd.th.jpg http://img131.imageshack.us/img131/9...e0072mg.th.jpg

PS: it's also very decently priced around here too, about 2/3 of the price of a OCZ 520W.
03-08-2006, 03:59 AM
krille

Quote:

Originally Posted by chunkylover77

For anyone interested in quiet and performance you might want to wait on the new PCP&C Silencers coming in April.

How will they compare to Seasonic S12 600 in terms of "performance" (wattage, rail stability etc), and most importantly: inaudibility (silence)?

Linkys?

I would love a version of my 850 SSI as quiet as my S12 600... :slobber:
03-08-2006, 04:37 AM
GMX

Quote:

Originally Posted by Micutzu

Anyone tried the Silverstone ST56ZF yet ? It has that PCP&C something ... solid built, no bling-bling, all black, single 80mm fan. It also comes with one beefy 12V rail, pushing 38A sustained and 45A peak, dual PCI-e connectors, and a sexy chopper inside.
I'll throw FX-60 and Crossfired X1900XT's at it tonight, to see how it does ... the only think lacking is the adjustable rails.

http://img78.imageshack.us/img78/460...e0034rz.th.jpg http://img126.imageshack.us/img126/7...e0045xf.th.jpg http://img129.imageshack.us/img129/7...e0056sv.th.jpg http://img228.imageshack.us/img228/1...e0063nd.th.jpg http://img131.imageshack.us/img131/9...e0072mg.th.jpg

PS: it's also very decently priced around here too, about 2/3 of the price of a OCZ 520W.

That PSU looks good. If you don't mind, you can maybe take the cover off and find some pots within the housing. Also, do any of these recent PSUs use sense wires? (like the older Antecs - the new antecs still have them i think)

It's priced about $165AUD here compared to OCZ 520s at $230AUD.

Looking forward to your results.
03-08-2006, 04:50 AM
eva2000

be careful to make sure the right ends of the modular cables are plugged into the psu with Silverston ST56F, as folks have killed cpus and hdds with accidently plugging wrong end of modular cables into the psu and components!
03-08-2006, 06:59 AM
physics_geek

Quote:

Originally Posted by eva2000

be careful to make sure the right ends of the modular cables are plugged into the psu with Silverston ST56F, as folks have killed cpus and hdds with accidently plugging wrong end of modular cables into the psu and components!

This PSU is another version. It's not modular.:stick:
BTW, I have that PSU. It's a sexy beast, but I'm worried about whether, it can handle 7900GTX in SLI or not.
03-08-2006, 09:03 AM
Micutzu

Quote:

Originally Posted by GMX

That PSU looks good. If you don't mind, you can maybe take the cover off and find some pots within the housing. Also, do any of these recent PSUs use sense wires? (like the older Antecs - the new antecs still have them i think)

It's priced about $165AUD here compared to OCZ 520s at $230AUD.

Looking forward to your results.

Unfortunately they don't use sense wires :(
I'll get to it tomorrow when i'll get back to work ... anyway it seems like a great benching PSU, especially for that price. I'll even go that far that i will say it's better than the 520W Powerstream as far as benching requirements go, can't wait to see who's making it's electronics.
03-08-2006, 09:40 AM
chunkylover77

Quote:

Originally Posted by krille

How will they compare to Seasonic S12 600 in terms of "performance" (wattage, rail stability etc), and most importantly: inaudibility (silence)?

Linkys?

I would love a version of my 850 SSI as quiet as my S12 600... :slobber:

Krille all I got was an email from PCP&C saying that there new more powerful Silencer's were coming in April/May. I will be waiting till then.
03-08-2006, 09:47 AM
nn_step

Quote:

Originally Posted by chunkylover77

Krille all I got was an email from PCP&C saying that there new more powerful Silencer's were coming in April/May. I will be waiting till then.

Same here.. when they come out.. I know I'm getting atleast 3..:D
03-08-2006, 09:57 AM
uOpt

Quote:

Originally Posted by Micutzu

Anyone tried the Silverstone ST56ZF yet ? It has that PCP&C something ... solid built, no bling-bling, all black, single 80mm fan. It also comes with one beefy 12V rail, pushing 38A sustained and 45A peak, dual PCI-e connectors, and a sexy chopper inside.
I'll throw FX-60 and Crossfired X1900XT's at it tonight, to see how it does ... the only think lacking is the adjustable rails.

The Silverstones are supposed to be pretty loud.

Which was also the case for my PCP&C 1 KW, BTW. It's wasn't so much the volume of noise, but the fan had a very mechanical sound to it, as opposed to a wind sound which I find less annoying at same volume.
03-08-2006, 10:07 AM
Micutzu

They have 120mm fan models too but generally yes, the Zeus series is pretty loud. From what i've seen so far, it's similar with the 510W and 1KW Turbocools as far as noise is concerned.

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