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Question about my minimum PSU requirement.

post #1 of 7
Thread Starter 
So I'm building a old school throw back DP Xeon system with two x5482s which are 150w CPUs and I wanna use this HD 6990 in there as well. All this stuff is very power hungry, so I know I'm gonna need a beefy PSU. I just wanted to ask if a 1000w is gonna be enough as it just covers the expected power requirement or is it better to go with something beefier? Does the motherboard itself use a good bit of power as well? It's a supermicro xdwa7-n. Any input appreciated.
Steam Machine
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CPUMotherboardGraphicsRAM
i5 3570K @4Ghz ASrock z77 Extreme 4 R9 260 16gb G.Skill Ripjaw @1800MHz 
Hard DriveOptical DriveCoolingOS
Plata None Air Win7 
MonitorKeyboardPowerCase
23" Widescreen ACER Uberclocked!! Antec 550W Basiq Lian Li Custom 
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W-i-P W-i-P 
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Steam Machine
(14 items)
 
  
CPUMotherboardGraphicsRAM
i5 3570K @4Ghz ASrock z77 Extreme 4 R9 260 16gb G.Skill Ripjaw @1800MHz 
Hard DriveOptical DriveCoolingOS
Plata None Air Win7 
MonitorKeyboardPowerCase
23" Widescreen ACER Uberclocked!! Antec 550W Basiq Lian Li Custom 
MouseMouse Pad
W-i-P W-i-P 
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post #2 of 7

Will the 6990 be used for gaming?

It's a computer!
(18 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 DriveOptical DriveOptical Drive
250 GB Samsung 840 EVO (OS) 3 TB Toshiba P300 (storage) Samsung SH-S243N 24x DVD Burner Samsung SH-S203N 20X DVD Burner 
CoolingOSMonitorKeyboard
Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) Filco Majestouch 104-key Cherry MX Blues w/NKRO 
PowerCaseMouseMouse Pad
Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate Basic, but premium round 
AudioAudio
X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
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It's a computer!
(18 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 DriveOptical DriveOptical Drive
250 GB Samsung 840 EVO (OS) 3 TB Toshiba P300 (storage) Samsung SH-S243N 24x DVD Burner Samsung SH-S203N 20X DVD Burner 
CoolingOSMonitorKeyboard
Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) Filco Majestouch 104-key Cherry MX Blues w/NKRO 
PowerCaseMouseMouse Pad
Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate Basic, but premium round 
AudioAudio
X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
  hide details  
Reply
post #3 of 7
Thread Starter 
Quote:
Originally Posted by TwoCables View Post

Will the 6990 be used for gaming?

I'm not sure. Really not even sure why I'm building it. It all started because I had the two x5482s lying around from when the 771 mod was hot a couple years ago. Then someone offloaded that supermicro board on me and the idea for this project popped in my head.

Honestly this thing is probably gonna get sold, so I just need the cheapest PSU that will go well with this system.
Steam Machine
(14 items)
 
  
CPUMotherboardGraphicsRAM
i5 3570K @4Ghz ASrock z77 Extreme 4 R9 260 16gb G.Skill Ripjaw @1800MHz 
Hard DriveOptical DriveCoolingOS
Plata None Air Win7 
MonitorKeyboardPowerCase
23" Widescreen ACER Uberclocked!! Antec 550W Basiq Lian Li Custom 
MouseMouse Pad
W-i-P W-i-P 
  hide details  
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Steam Machine
(14 items)
 
  
CPUMotherboardGraphicsRAM
i5 3570K @4Ghz ASrock z77 Extreme 4 R9 260 16gb G.Skill Ripjaw @1800MHz 
Hard DriveOptical DriveCoolingOS
Plata None Air Win7 
MonitorKeyboardPowerCase
23" Widescreen ACER Uberclocked!! Antec 550W Basiq Lian Li Custom 
MouseMouse Pad
W-i-P W-i-P 
  hide details  
Reply
post #4 of 7

I think this one would work very well:

 

http://pcpartpicker.com/product/JYyFf7/evga-power-supply-110b20750vr

 

It's the 750W EVGA B2. Here's the JonnyGURU review: http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story&reid=393

It's a computer!
(18 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 DriveOptical DriveOptical Drive
250 GB Samsung 840 EVO (OS) 3 TB Toshiba P300 (storage) Samsung SH-S243N 24x DVD Burner Samsung SH-S203N 20X DVD Burner 
CoolingOSMonitorKeyboard
Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) Filco Majestouch 104-key Cherry MX Blues w/NKRO 
PowerCaseMouseMouse Pad
Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate Basic, but premium round 
AudioAudio
X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
  hide details  
Reply
It's a computer!
(18 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 DriveOptical DriveOptical Drive
250 GB Samsung 840 EVO (OS) 3 TB Toshiba P300 (storage) Samsung SH-S243N 24x DVD Burner Samsung SH-S203N 20X DVD Burner 
CoolingOSMonitorKeyboard
Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) Filco Majestouch 104-key Cherry MX Blues w/NKRO 
PowerCaseMouseMouse Pad
Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate Basic, but premium round 
AudioAudio
X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
  hide details  
Reply
post #5 of 7
Thread Starter 
Quote:
Originally Posted by TwoCables View Post

I think this one would work very well:

http://pcpartpicker.com/product/JYyFf7/evga-power-supply-110b20750vr

It's the 750W EVGA B2. Here's the JonnyGURU review: http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story&reid=393

You sure a 750w is enough? In unlocked mode the 6990 draws 498w of power.
Steam Machine
(14 items)
 
  
CPUMotherboardGraphicsRAM
i5 3570K @4Ghz ASrock z77 Extreme 4 R9 260 16gb G.Skill Ripjaw @1800MHz 
Hard DriveOptical DriveCoolingOS
Plata None Air Win7 
MonitorKeyboardPowerCase
23" Widescreen ACER Uberclocked!! Antec 550W Basiq Lian Li Custom 
MouseMouse Pad
W-i-P W-i-P 
  hide details  
Reply
Steam Machine
(14 items)
 
  
CPUMotherboardGraphicsRAM
i5 3570K @4Ghz ASrock z77 Extreme 4 R9 260 16gb G.Skill Ripjaw @1800MHz 
Hard DriveOptical DriveCoolingOS
Plata None Air Win7 
MonitorKeyboardPowerCase
23" Widescreen ACER Uberclocked!! Antec 550W Basiq Lian Li Custom 
MouseMouse Pad
W-i-P W-i-P 
  hide details  
Reply
post #6 of 7
Quote:
Originally Posted by TheProfiteer View Post


You sure a 750w is enough? In unlocked mode the 6990 draws 498w of power.

 

That's total system power draw from the wall, not the card itself. So that means the PSU is pulling 498W out of the wall outlet. This means that if we assume the PSU were 90% efficient while pulling 498W out of the wall, then that means the entire computer is pulling 448W out of the PSU.

It's a computer!
(18 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 DriveOptical DriveOptical Drive
250 GB Samsung 840 EVO (OS) 3 TB Toshiba P300 (storage) Samsung SH-S243N 24x DVD Burner Samsung SH-S203N 20X DVD Burner 
CoolingOSMonitorKeyboard
Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) Filco Majestouch 104-key Cherry MX Blues w/NKRO 
PowerCaseMouseMouse Pad
Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate Basic, but premium round 
AudioAudio
X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
  hide details  
Reply
It's a computer!
(18 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 DriveOptical DriveOptical Drive
250 GB Samsung 840 EVO (OS) 3 TB Toshiba P300 (storage) Samsung SH-S243N 24x DVD Burner Samsung SH-S203N 20X DVD Burner 
CoolingOSMonitorKeyboard
Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) Filco Majestouch 104-key Cherry MX Blues w/NKRO 
PowerCaseMouseMouse Pad
Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate Basic, but premium round 
AudioAudio
X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
  hide details  
Reply
post #7 of 7
Thread Starter 
Quote:
Originally Posted by TwoCables View Post

That's total system power draw from the wall, not the card itself. So that means the PSU is pulling 498W out of the wall outlet. This means that if we assume the PSU were 90% efficient while pulling 498W out of the wall, then that means the entire computer is pulling 448W out of the PSU.
Oh ok, I see how that works. So I should be fine with a 750, that's good know.
Steam Machine
(14 items)
 
  
CPUMotherboardGraphicsRAM
i5 3570K @4Ghz ASrock z77 Extreme 4 R9 260 16gb G.Skill Ripjaw @1800MHz 
Hard DriveOptical DriveCoolingOS
Plata None Air Win7 
MonitorKeyboardPowerCase
23" Widescreen ACER Uberclocked!! Antec 550W Basiq Lian Li Custom 
MouseMouse Pad
W-i-P W-i-P 
  hide details  
Reply
Steam Machine
(14 items)
 
  
CPUMotherboardGraphicsRAM
i5 3570K @4Ghz ASrock z77 Extreme 4 R9 260 16gb G.Skill Ripjaw @1800MHz 
Hard DriveOptical DriveCoolingOS
Plata None Air Win7 
MonitorKeyboardPowerCase
23" Widescreen ACER Uberclocked!! Antec 550W Basiq Lian Li Custom 
MouseMouse Pad
W-i-P W-i-P 
  hide details  
Reply
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