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post #11 of 14
Thread Starter 
Thanks for the advice

Are you sure 630 W psu is enough?
And does it matter which brand of GPU for the 6950?
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Sleek
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Western Digital Black 4TB Swiftech H240-X Acer XB270HU 144 Hz 27" 1440p Ducky Shine 4 Cherry MX Black 
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post #12 of 14
Quote:
Originally Posted by m1nt View Post
Thanks for the advice

Are you sure 630 W psu is enough?
And does it matter which brand of GPU for the 6950?
Absolutely. However, we can't just say that any ~630W power supply is enough. That's why I said "The 630W Rosewill Green is a very good choice for this build. It's a recommended unit, but it has a really awesome price."

AMD recommends a 500W peak-rated power supply to power a system that has one 6950 in it. This means that if they were to state their PSU recommendation for powering a system with two 6950s in it, then they would recommend a 600W peak-rated power supply. Now, the 630W Rosewill Green Series is a 630W continuous-rated power supply. This means that it's designed to be able to deliver 630W continuously. If it were to be rated by its peak rating, then it would be sold as a 730W power supply, and then I would be calling it a 730W peak-rated power supply.

So if I were to find two 600W power supplies where one is a continuous-rated unit and the other is a peak-rated unit, then we would find that the continuous-rated unit has a much larger capacity than the peak-rated unit. A 600W peak-rated power supply is really only capable of continuously delivering maybe 450-500W at best while a 600W continuous-rated unit is capable of continuously delivering 600W. What's more, a 500W peak-rated power supply is really only capable of continuously delivering about 400-450W at best.

However, I have been told that overclocking the 6900 series causes them to pull much more power than they do at stock, so I will recommend that you exercise caution if you overclock them. Although, the worst that would happen is the PSU would harmlessly turn off, almost as if it were saying "Nope. I'm sorry. I can't do that. Reduce the load, and then I'll stay on".


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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 
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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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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 
Mouse PadAudioAudio
Basic, but premium round X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
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Reply
post #13 of 14
Thread Starter 
Ohhh, thank you for explaining that, I didn't know a lot about PSU's... that helps very much!
Sleek
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CPUMotherboardGraphicsRAM
Intel i7 4790k MSI Z97A GAMING 7 (MS-7916) MSI GTX 980 Ti Gaming G6 Corsair Vengeance Pro 16GB (2 x 8GB) DDR3-1866 
Hard DriveCoolingMonitorKeyboard
Western Digital Black 4TB Swiftech H240-X Acer XB270HU 144 Hz 27" 1440p Ducky Shine 4 Cherry MX Black 
PowerCaseMouseMouse Pad
EVGA SuperNova 650 G2 Fractal Design Define S Razer DeathAdder Chroma SteelSeries QcK Mini 
Audio
B&W 601 S3 bookshelf, Polk PSW10, Denon AVR-161... 
  hide details  
Reply
Sleek
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel i7 4790k MSI Z97A GAMING 7 (MS-7916) MSI GTX 980 Ti Gaming G6 Corsair Vengeance Pro 16GB (2 x 8GB) DDR3-1866 
Hard DriveCoolingMonitorKeyboard
Western Digital Black 4TB Swiftech H240-X Acer XB270HU 144 Hz 27" 1440p Ducky Shine 4 Cherry MX Black 
PowerCaseMouseMouse Pad
EVGA SuperNova 650 G2 Fractal Design Define S Razer DeathAdder Chroma SteelSeries QcK Mini 
Audio
B&W 601 S3 bookshelf, Polk PSW10, Denon AVR-161... 
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post #14 of 14
Quote:
Originally Posted by m1nt View Post
Ohhh, thank you for explaining that, I didn't know a lot about PSU's... that helps very much!
You're very welcome!
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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