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TT black widow?

post #1 of 23
Thread Starter 
Excellent deal on an 850w Thermaltake black widow power supply at newegg, wondering how well they work though? SLI 570 setup is what it'd be going into. Can't find many real reviews anywhere.
    
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post #2 of 23

They're low quality units.  Besides, all that would be needed is a 650W PSU:

 

http://www.guru3d.com/articles_pages/geforce_gtx_570_sli_review,13.html

 

With two GTX 570s under full load in their system, their PSU pulled 578W from the wall outlet.  Their CPU was idling, so I have to add 150W for that, and so adding that to the two 570s makes the PSU pulling 728W from the wall outlet.  So, if the PSU is 85% efficient while pulling 728W from the wall outlet, then that would mean the system is only pulling 618W from the PSU.  Of course, your power draw while gaming would only be around 525-550W.  So if you have a 650W PSU that can continuously deliver 650W (like the EA650 Platinum Series), then you have enough power.


Edited by TwoCables - 3/1/13 at 5:27am
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post #3 of 23
Thread Starter 
opdjkqaw90kd90dk9023d
Edited by Minnetonka16 - 3/1/13 at 5:43am
    
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post #4 of 23

I had to change my post because it was an accidental post before I was finished.  I apologize for that.  I didn't know you would be this fast.

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250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
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post #5 of 23
12v rating on a 650watt psu is about 515watts give or take a few. Even just gaming you'd be a fool to run that config on a 650.
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post #6 of 23
Are you going to overclocking the 570s? At 1.1v an sli system uses close to 500-550 on its own. Then depending on cpu and its clock/voltage add another 200. I would say a 750 would be the safe sweet spot while a quality 650 will do it there is a slight chance if your a benching kind of guy you could run into power issues. Very slight chance.
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post #7 of 23
Quote:
Originally Posted by LavishB View Post

12v rating on a 650watt psu is about 515watts give or take a few. Even just gaming you'd be a fool to run that config on a 650.

http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&N=100007657%20600037998%20600014022&IsNodeId=1&name=601W%20-%20700W

Which psu on that list only has 515 on the 12v rail? A 650w will run it fine just depending on how hard the op wants to push it.
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post #8 of 23
Quote:
Originally Posted by LavishB View Post

12v rating on a 650watt psu is about 515watts give or take a few. Even just gaming you'd be a fool to run that config on a 650.

 

Not all PSUs at a given wattage have the same +12V capacities.  Some 650W units have +12V capacities as high as 648W and even 650W.

 

So to be bluntly honest (and probably rudely so), you don't know what you're talking about here.

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CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveHard DriveOptical Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
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Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) 
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Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate 
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It's a computer!
(19 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveHard DriveOptical Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
Optical DriveCoolingOSMonitor
Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) 
KeyboardPowerCaseMouse
Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate 
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Basic, but premium round X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
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post #9 of 23
Thread Starter 
I have an antec EA650 right now and they artifact like hell on idle, no reason not to get at least a 750w.

Also, cables, I have a 77w core i5, that's 70w off your estimate.
    
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WD Velociraptor 1TB Samsung 840 Pro 128GB (AD Inventor on it) Samsung DVD/CD burner/reader, pretty basic Custom WC 
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Windows 7 Ultimate x64 Dell UltraSharp U3011 30" 2560*1600 Razer BlackWidow mech. keyboard Antec EA650 platinum series 
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post #10 of 23
Quote:
Originally Posted by Minnetonka16 View Post

I have an antec EA650 right now and they artifact like hell on idle, no reason not to get at least a 750w.

 

I doubt it's the PSU.  Again:

 

http://www.guru3d.com/articles_pages/geforce_gtx_570_sli_review,13.html

 

With two GTX 570s under full load in their system, their PSU pulled 578W from the wall outlet.  Their CPU was idling, so I have to add 150W for that, and so adding that to the two 570s makes the PSU pulling 728W from the wall outlet.  So, if the PSU is 85% efficient while pulling 728W from the wall outlet, then that would mean the system is only pulling 618W from the PSU.  Of course, your power draw while gaming would only be around 525-550W.  So if you have a 650W PSU that can continuously deliver 650W (like the EA650 Platinum Series), then you have enough power.

 

Your idle power draw is much too low to even come close to saturating your PSU.

 

 

Edit:  578W + 77W x 0.85 (for 85% efficiency) equals 556.75W.  Your gaming power draw will be closer to about 500-525W.


Edited by TwoCables - 3/1/13 at 5:48am
It's a computer!
(19 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveHard DriveOptical Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
Optical DriveCoolingOSMonitor
Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) 
KeyboardPowerCaseMouse
Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate 
Mouse PadAudioAudio
Basic, but premium round X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
  hide details  
Reply
It's a computer!
(19 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveHard DriveOptical Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
Optical DriveCoolingOSMonitor
Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) 
KeyboardPowerCaseMouse
Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate 
Mouse PadAudioAudio
Basic, but premium round X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
  hide details  
Reply
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