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Radeon 6970 PSU? - Page 5

post #41 of 55
Thread Starter 
Quote:
Originally Posted by TwoCables View Post
hehehe

I was actually just trying to say that the HX850 is extreme overkill unless you have absolutely definite plans of having like three 6970s (if tri-fire 6970s is physically possible on a board with three PCI-E slots), or like two GTX 580s, etc.
The main reason I chose that one is that I don't want a loud PSU, so I figured if it isn't as close to max load as a 750w or so, then the fan wouldn't run as fast and be quieter. Although I could be completely wrong on that.
post #42 of 55
Quote:
Originally Posted by SergeantSilent View Post
The main reason I chose that one is that I don't want a loud PSU, so I figured if it isn't as close to max load as a 750w or so, then the fan wouldn't run as fast and be quieter. Although I could be completely wrong on that.
I think that even a good quality 650 to 750W power supply would be pretty quiet.
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post #43 of 55
Thread Starter 
Quote:
Originally Posted by TwoCables View Post
I think that even a good quality 650 to 750W power supply would be pretty quiet.
well the 750w version of that PSU I showed is only like 30 less than the 850w, so it couldn't hurt to overkill for that 30 more.
post #44 of 55
Quote:
Originally Posted by SergeantSilent View Post
well the 750w version of that PSU I showed is only like 30 less than the 850w, so it couldn't hurt to overkill for that 30 more.
$30 could buy two pizzas!

Oh wait a sec... you wouldn't gain an extra $30. Hmm... Damn.
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post #45 of 55
Theoretically you can run fine on a quality 500w PSU and still overclock (Not that I would ever recommend 500w)

When I'm playing BF3 beta, I stress both GPU's 99% and the CPU for 95%.
My system takes 470 watts from the socket at that time. With 85% efficiency that means my system is using ~ 410 watts stressed.
My GPU's are OC'd to 6970 levels.
post #46 of 55
Quote:
Originally Posted by Deluxe View Post
Theoretically you can run fine on a quality 500w PSU and still overclock (Not that I would ever recommend 500w)

When I'm playing BF3 beta, I stress both GPU's 99% and the CPU for 95%.
My system takes 470 watts from the socket at that time. With 85% efficiency that means my system is using ~ 410 watts stressed.
My GPU's are OC'd to 6970 levels.
470 x .85 is 399.5 though.
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post #47 of 55
Quote:
Originally Posted by TwoCables View Post
470 x .85 is 399.5 though.
Yeah, I'm not that great with numbers out of my head
post #48 of 55
Quote:
Originally Posted by Deluxe View Post
Yeah, I'm not that great with numbers out of my head
But Windows has a built-in calculator. tehehe

Although, wait a minute.... being off by about 10 is pretty damn impressive in my opinion.
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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 
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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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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post #49 of 55
Thread Starter 
Just a quick question that I thought didn't need another thread; do you think I could leave my current GPU (9400 GT) in there for the time being for physX when I get my new GPU? Like could my PSU handle it? As well as would there be any driver problems?
Edited by SergeantSilent - 10/10/11 at 3:04pm
post #50 of 55
Quote:
Originally Posted by SergeantSilent View Post
Just a quick question that I thought didn't need another thread; do you think I could leave my current GPU (9400 GT) in there for the time being for physX when I get my new GPU? Like could my PSU handle it? As well as would there be any driver problems?
You would have too use a hack for PhysX to work. Even then a 9400 is far too weak to be any good and will lag the game. The minimum is a GTS 250.

Also Physx is not very popular and only a handful of games use it.
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