Please register or login. There are 0 registered and 1158 anonymous users currently online. Current bandwidth usage: 326.30 kbit/s December 17 - 02:42pm EST 
Hardware Analysis
      
Forums Product Prices
  Contents 
 
 

  Latest Topics 
 

More >>
 

    
 
 

  You Are Here: 
 
/ Forums / Power Supply Units /
 

  SLI GTX580 SC's on Corsair HX1050 PSU 
 
 Author 
 Date Written 
 Tools 
Seth Hoffman Dec 06, 2011, 12:03pm EST Reply - Quote - Report Abuse
Private Message - Add to Buddy List Replies: 9 - Views: 2884
I'm going to be adding another EVGA GTX 580 DS Super clock video card to my rig in a couple weeks. I need to upgrade my power supply, I currently have a Corsair HX750. I was looking at the Corsair HX1050 but it has 87.5A on the 12v, and both cards running at full load could use as much as 84A and that's a little close. I know that the machine will never run at 100% CPU and SLI under normal conditions outside of maybe synthetic benchmarks.

The Corsair AX1200 has 100.4A on the 12v. Which would support my system in a worst case scenario.

What do you guys think? HX1050 enough, or just spend the extra $40 and get the AX1200?

See system specs below:






Want to enjoy fewer advertisements and more features? Click here to become a Hardware Analysis registered user.
Meats_Of_Evil Dec 06, 2011, 12:42pm EST Reply - Quote - Report Abuse
Private Message - Add to Buddy List

Edited: Dec 06, 2011, 12:42pm EST

 
>> Re: SLI GTX580 SC's on Corsair HX1050 PSU
I would say the 1050w will get the job done Corsair are notable for their quality PSU's that can supposedly withstand much more than indicated in specs.

Read this thread http://www.tomshardware.com/forum/303975-33-850w
and search on Toms Hardware, Guru3d and Anandtech reviews for further details.

-------------------------------------------------------------------------------------------------------------------------
Everything I write is Sarcasm.
john albrich Dec 06, 2011, 01:53pm EST Reply - Quote - Report Abuse
Private Message - Add to Buddy List

Edited: Dec 06, 2011, 02:00pm EST

 
>> Re: SLI GTX580 SC's on Corsair HX1050 PSU
.
I don't know, MOE...$40 extra seems like pretty cheap insurance. (That's what...about 3% more these days?)

Remember that +12 also supplies some high-current spike demand devices (e.g. HDDs when spinning-up after being 'asleep' or powering up) which might be a surprise factor depending on configuration. And if I had devices that could even theoretically run close to the limits I'd feel safer with a higher margin. I prefer a 20% power margin on any given parameter even with quality PSUs...but then that's me.


edit to add:
It would be interesting to see graphic card reviewers include real-time DC current requirement graphs while running various games and benchmarks at different settings.

<a class= Dec 06, 2011, 05:42pm EST Reply - Quote - Report Abuse
Private Message - Add to Buddy List

Edited: Dec 06, 2011, 05:42pm EST

 
>> Re: SLI GTX580 SC's on Corsair HX1050 PSU
40 bucks for extra 200 watts? Hell yeah. Plus who knows, maybe you'll be adding a 3rd gtx at some point ;)

_______________________________________________________
3930K @ 5.00Ghz | GA-X79-UD3P | 16Gb DDR3 | GTX770 | W7 x64
Seth Hoffman Dec 07, 2011, 08:34am EST Reply - Quote - Report Abuse
Private Message - Add to Buddy List  
>> Re: SLI GTX580 SC's on Corsair HX1050 PSU
I have been doing some research and a lot of tri-SLI rigs are running the 1200W supply. My motherboard can't do tri-SLI so that's not an option to plan for. I think the 1050W model would be fine.

However, I agree that for the extra $60 (I was wrong about the previous price) it's worth the peace of mind and OC headroom.

Thanks for the replies.


G. G. Dec 07, 2011, 03:53pm EST Reply - Quote - Report Abuse
Private Message - Add to Buddy List  
>> Re: SLI GTX580 SC's on Corsair HX1050 PSU
Seth,

I am currently running a Corsair TX850 running a Q9550 and a HD4870 with a bunch of stuff. I definately have the peace of mind that I have enough headroom if I wanted to get a second card and OC.

I would say spend the extra doh to get the AX1200 so as you are set at a future time if you were to want to get a second GTX580 and OC both the cpu and gpu. If not, you will have plenty of power for any new build afterwards.

Also, with headroom.... your psu will run cooler because it is not being stressed out by running at or near it's full capacity. The closer any component running at their max capacity will cause higher running temps. More watts = more heat generated.


---------------------------------------------------------------------------------------------------------------------

-
Seth Hoffman Dec 07, 2011, 04:16pm EST Reply - Quote - Report Abuse
Private Message - Add to Buddy List

Edited: Dec 07, 2011, 04:20pm EST

 
>> Re: SLI GTX580 SC's on Corsair HX1050 PSU
This is a bit off topic but, I was wondering do any of you know if CUDA works over SLI?

The reason I ask is I'm in the process of ripping my families DVD collection and streaming them from my home server. I can transcode a 4GB ISO to mp4 in about 13min on the CPU and 9min with my single GTX580 using a CUDA transcoder.

If I could transcode an ISO even faster it would save me a lot of time. Currently it takes ~25min to rip the ISO then transcode to mp4 for each DVD.

***Nevermind, found the answer****


mothow Dec 08, 2011, 05:55pm EST Reply - Quote - Report Abuse
Private Message - Add to Buddy List  
>> Re: SLI GTX580 SC's on Corsair HX1050 PSU
My PSU would handle 2 GTX 580SC's easy.Its already handling dual GTX 570 SC's in SLI with a couple of hard drives and a SSD

ASRock Z97 Extreme 4 / i7 4790K / Corsair H80i / 4x4GB Crucial Ballistix Smart Tracer DDR3 1600 / 1TB Western Digital Caviar Black / 240GB Mushkin Chronos Deluxe SSD / 2x Evga GTX 670 FTW 2GB in SLI / Sound Blaster Recon3D Fatal1ty / Corsair HX1000w
Seth Hoffman Dec 08, 2011, 10:10pm EST Reply - Quote - Report Abuse
Private Message - Add to Buddy List  
>> Re: SLI GTX580 SC's on Corsair HX1050 PSU
What voltage are you using for 4.8Ghz on your 2600k?


mothow Dec 09, 2011, 04:24pm EST Reply - Quote - Report Abuse
Private Message - Add to Buddy List

Edited: Dec 09, 2011, 04:26pm EST

 
>> Re: SLI GTX580 SC's on Corsair HX1050 PSU
It was 1.25v or 1.3v not 100% sure .Im not running at 4.8 anymore i should remove that im using turbo and it hits 4.4ghz .No more standard overclock

ASRock Z97 Extreme 4 / i7 4790K / Corsair H80i / 4x4GB Crucial Ballistix Smart Tracer DDR3 1600 / 1TB Western Digital Caviar Black / 240GB Mushkin Chronos Deluxe SSD / 2x Evga GTX 670 FTW 2GB in SLI / Sound Blaster Recon3D Fatal1ty / Corsair HX1000w

Write a Reply >>


 

    
 
 

  Topic Tools 
 
RSS UpdatesRSS Updates
 

  Related Articles 
 
 

  Newsletter 
 
A weekly newsletter featuring an editorial and a roundup of the latest articles, news and other interesting topics.

Please enter your email address below and click Subscribe.