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Check this outQuote:
Originally Posted by chunkylover77
I'm very happy with mine (and I went from an 850 SSI due to noise)! :)Quote:
Seasonic S12 600W Power Supply Passed all tests
That would be incorrect. Mechanics usually use 12v. HDDs are (contain) if anything mechanical parts. ;)Quote:
Originally Posted by Cooper
Question on my mind is why didn't psu manufacturers just have each PCI-E on a separate rail to begin with ?
easy 1kw psu 5v+ rail is only rated for 30A hehQuote:
Originally Posted by situman
You mean having 3+ rails? No idea... but If you mean in a dual rail PSU one PCI-E power connector on the main rail and one on the second, it's probably because of either crossloading or noobs would use the wrong (main) in case of single graphics... as long as the dedicated 12v for PCI-E provides enough *juice (without messy crossloading requirements), this wouldn't be a problem to begin with (and I don't think it'll be solved by adding another rail).Quote:
Originally Posted by eva2000
I also thought about this. This is really weird, since even the 510 ASL's 5v+ is rated for 40A - 10A more than both of its elder brothers. Luckily, at least the 1KW delivers 0.5A more on the +5VSB than the baby...Quote:
Originally Posted by eva2000
*edit: spelling
yeah that actually brings up another question, why don't psu manufacturers actually label the power cables and explain in their manual, on the box what the power distribution is for each cable to what item cpu, video, hdd, mb etc ?
THIS is what I'm talking about. Individual connectors are labelled for different devices but from my understanding, you still don't know for sure which 12v rail you are pulling from when you connect a device. With split or quad rail psu's I think you really need some kind of explanation as to what rail you are drawing from so you don't overload any individual 12v rail. Thats my understanding of split rails and quad rails, its connector specific and not automatic...PSU manufacturers are you reading this thread??Quote:
Originally Posted by eva2000
they should design the PSU properly so they dont have to.
Usually it's one type of connectors for one rail, here is how the different connector types are commonly split between the 12v rails (on PSUs with four or more rails):Quote:
Originally Posted by Xenogias
* One or two rails for mobo connectors: This includes 20/24-pin on first 'mobo' rail, with P4 4-pin and 8-pin connectors on second 'mobo' rail (if available, otherwise they're all on the same one).
* One or two rails for PCI-E 6-pin connector(s) (usually two, either one per rail or both on the same).
* One extra rail for molex, SATA, FDD and rest connectors.
As you see, you can't really connect anything wrong here, unless the PSU has some weird cross-loading scheme (but that's an entirely different story!). It's usually the same on PSUs with two or three rails (in the sense you can't really connect stuff to the wrong rail, rail schematics may differ a lot still).
I run the same psu,Quote:
Originally Posted by alpha0ne
This morning i got bored and flicked it from dual rails (20a each) to single (35a)
and now, 2.75ghz is stable :slobber: :eek:, up from 2.6ghz and the x1900xtx got an extra 20mhz on the core and 10mhz on the mem.
I also noticed that the rails like 5v,12v and 3.3v are much more stable according to my dmm and are slightly above, eg. 12.21v idle and 12.19v dual load, instead of dual rail when they ran at 11.9v load.
Considering i just moved a switch selector, thats a damm impressive gain!
Hehe nice to see an improvement, I was/am pretty sure thats the way to go but I just keep forgetting to switch mine over :rolleyes: , my rails ATM are 3.3, 5.08 and 12.54 that droops to 12.42 under load so I am very happy with this PSU and the near total silence :toast:Quote:
Originally Posted by 3NZ0
I will change to single rail tomorrow if I remember :stick: , I am also getting a Meamwell mini PSU to power my fans and WC pump so maybe I can manage 3GHz out of my 170 though will have to wait until the heat wave is over, above 36C for the last two days and ar least another 3 days to go :(
12.5 is kinda high IMOQuote:
Originally Posted by alpha0ne
well overvolting has the effect of improving your overclock.. :rolleyes:
Single rail is why I got the OCZ 520 Powerstream instead of the 600W. 34A opposed to 2x20A. If you want a good beefy 12V rail, look for the Zippy 700W. It's cheap and has 45+A on the 12V.
Which is total crap, it came out of the box overvolted on the 12V rail :rolleyes:Quote:
Originally Posted by nn_step
Thats precisely how my Antec Neo HE 500w is set out, everthing is clear as a bell as to what goes where... confusion... where ? and the cable management system is fantastic. Only use what you need. :fact: :DQuote:
Originally Posted by krille
Heres the specs....Quote:
Originally Posted by thunderstruck!
http://img179.exs.cx/img179/4707/zippy0zy.jpg
And the mods....Thanks Hipro:toast: ...http://www.xtremesystems.org/forums/...124#post717124
But is it quiet?
Originally linked by theinq.net
http://www.extremetech.com/article2/...1932958,00.asp
Again, XS was the first to discuss this, months ago...
http://www.xtremesystems.org/forums/...ighlight=power
Beings that I OC i could care less if its real noisey or not. If it was just a stock everyday PC then sure i would prolly care if it was loud, But what most of us do with our systems its not a big deal if its loud. I care about performance.Quote:
Originally Posted by chunkylover77
my pcp&c 510 SLI dominates SLI....
Silverstone LaScala LC18
AMD fx-60 @ 3.0ghz
DFI SLI Expert
4GB OCZ memory
4x Raptor 150GB
300GB seagate
250GB Maxtor
160GB WD
120GB WD
80GB Maxtor
2x XFX 7800GTX 512MB @ 600/1850
1x Optical Drives
2x 120mm fans
2x 80MM fans
Coolermaster Aerogate fan controller
7in Touchscreen on front of case
And that's with 1% tolerance, even less measured with a multimeter. It simply doesn't move more than .01 idle-load.
Only problem is yes, it is loud. That's why I just an acrylic cover for the psu with a 92mm fan hole in it; I'm mounting a 92mm silent fan externally on it, and swapping out the 80mm fan inside it for a noiseless one, and I'll end up with total DB level of around 25db with more CFM than stock fan.
Its actually a question of ATX specs and video card manufacturers making cards that pull more than ATX specs will allow for dual rail PSU's.
Our 600W unit is pretty strong but has dual 12v rails, not good it seems as many have found for Xfire or SLI, the 520W has 1 fat 12V line and is aparantly better. Now OCZ are not in the business of sitting down about this so we are designing units that will cope better, the issue is we are now being forced to make PSU's that deviate a little for official specs just to cope with power hungry video cards.
Think about it this way its only since SLI and Xfire PSU's have had serious issues and its always the last piece of equipment that end users feel they have to upgrade.
Be warned. I thought my PCP&C dominated as well. Then this happened:Quote:
Originally Posted by computerpro3
http://www.xtremesystems.org/forums/...ad.php?t=91628
i'm still working out how to turn my 600w powerstream into a single rail monster tony ;)
holy crap. Well, I'm ordering a zippy 700w for my home pc, now you've got me thinkin of doing the same for my htpc....Quote:
Originally Posted by mdzcpa
Antec NeoHE, Fortron Epsilon and Tagan 2Force power supplies are excellent choices for high-end SLI and CrossFire setups.
Antec NeoHE 550W:
It has three 12V lines, 18A for each.
Maximum combined load for 12V rails: 42A
5V rail is rated to 20A.
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.