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post #11 of 48
Quote:
Originally Posted by TwoCables View Post

The 660 is a very low-power card. You could use a quality-made 450W and still have headroom:

http://www.guru3d.com/articles_pages/msi_geforce_gtx_660_twinfrozr_iii_review,7.html

With one GTX 660 under full load in their system, their PSU pulled 230W from the wall outlet. The 660 by itself pulled 108W, so adding that in for a 2nd 660 makes the PSU pulling 338W from the wall outlet. The CPU was idling, so I will add 150W for the 3570K overclocked to 5 GHz. So then with the 3570K overclocked to 5 GHz and under full load at the same time as the two 660s, the PSU is then pulling 488W from the wall outlet. So now if the PSU is 85% efficient while pulling 488W from the wall outlet, then the computer is pulling 415W from the PSU. However, your gaming power consumption will be closer to about 350-375W being pulled out of the PSU. It will be less if you overclock the 3570K to only 4.5 GHz or so.

Taking consideration to additional case fans, you probably need more than 500W.
 
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The Monolith
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post #12 of 48
Quote:
Originally Posted by d3cryptncompute View Post


Taking consideration to additional case fans, you probably need more than 500W.

 

Not really, believe it or not.

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It's a computer!
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post #13 of 48
Quote:
Originally Posted by d3cryptncompute View Post

Taking consideration to additional case fans, you probably need more than 500W.
Not even a chance, I have an 850W and Im overclocked everywhere and have an abundance of fans (every fan slot is used) and my CPU cooler takes alot of power and I am still barely pulling 600W, 500W for his system will be more then fine.
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post #14 of 48

Case fans don't pull that much power. He'd have to have more than a dozen high-performance fans to make me begin wondering about it.

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It's a computer!
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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 
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Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate Basic, but premium round 
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post #15 of 48
Quote:
Originally Posted by d3cryptncompute View Post

Taking consideration to additional case fans, you probably need more than 500W.

Well for instance my system is pulling from the wall 226W (CPU + GPU Full load) i have a pretty good OC on the CPU (4.5) and the GPU (1200MHz) and the case has 6 fans.

Each fan draws anything from 2 to 5w (normal fans)
post #16 of 48
Quote:
Originally Posted by TwoCables View Post

Case fans don't pull that much power. He'd have to have more than a dozen high-performance fans to make me begin wondering about it.

My apologies, I don't really have a basis for fan power consumption.
 
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The Monolith
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XFX Radeon 6990 4GB XFX Radeon 6990 4GB Kingston HyperX 16GB (2 x 8GB) 1600Mhz Kingston SSDNow 240GB 
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post #17 of 48
Quote:
Originally Posted by d3cryptncompute View Post


My apologies, I don't really have a basis for fan power consumption.

 

Nah, don't worry about it. This is very common, so it's all good.

It's a computer!
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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... 
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post #18 of 48
Thread Starter 
I also have 7 case fans. I'm going to go with a 700w PSU for future graphic card upgrades. Thanks to all, now I know not to install my 2nd 660 without getting a new PSU first!!! thumb.gif
Rick Grymes
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Rick Grymes
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post #19 of 48
You know that new hardware needs less and less wattage so no reason to get a high wattage PSU. If you are not using the watts they are there doing nothing so do not waste money on things you do not need thats my 2cents.gif but do as you please thumb.gif
post #20 of 48
Quote:
Originally Posted by woodgooner2 View Post

I also have 7 case fans. I'm going to go with a 700w PSU for future graphic card upgrades. Thanks to all, now I know not to install my 2nd 660 without getting a new PSU first!!! thumb.gif

 

Please be careful about which PSU you choose. Don't get just ANY 700W PSU.

 

Besides, what future upgrades? We are at a point where each new generation of CPUs and GPUs requires less power than the previous.

It's a computer!
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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 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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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
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