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*Urgent Updated* Can my AX750 power this?

post #1 of 28
Thread Starter 
I'm just wondering if my AX750 can power my sig rig + GPUs are: 1 6970, 1 6950 and 1 5870 (doing dummy plug trick) all 3 running at 100% usage? I know the AX is pretty good but that seems to be quite a heavy job. I'm a total noob about PSU .
Edited by Ocnewb - 5/12/11 at 8:53pm
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post #2 of 28
I would say that's pushing it.

Tri-fire I would think needs at least 850W especially with OCs + 100% usage
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CMLXXX - RAMPAGE
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post #3 of 28
Thread Starter 
Aww i just got this PSU like a week ago, i didn't know i would be running this many GPUs tho. How about 3 5870s? I guess the 69xx are more power efficiency so probably no as well . Boo, i should have gotten the AX850 .
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post #4 of 28
I would give it a shot. At the worst, it'll just say "I don't have enough power for this. Sorry." and then harmlessly shut off.
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It's a computer!
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post #5 of 28
Thread Starter 
Quote:
Originally Posted by TwoCables View Post
I would give it a shot. At the worst, it'll just say "I don't have enough power for this. Sorry." and then harmlessly shut off.
Lol i will give it a shot . Time to test the AX reputation
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post #6 of 28
Hmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm.

I'm not too sure on this one. Are the cards overclocked?
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post #7 of 28
Thread Starter 
Quote:
Originally Posted by GameBoy View Post
Hmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm.

I'm not too sure on this one. Are the cards overclocked?
Probably just a little bit on the Core, ill downclock the Mem tho as i don't need it. If it can't run then ill just take out the 6950. Does the 5870 consume more power than 6950 or less?
~|Nanpa|~
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|A8-3870k 3.5Ghz| |Gigabyte GA-A75-UD4H| |Onboard 6550D -_-| |Samsung 30nm Low Profile 2133 Cas9| 
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|Corsair Force GT 90GB|WD 820GB| |SamSung BluRay| |Stock Heatsink -_-| |Win 7 Ultimate x64| 
MonitorKeyboardPowerCase
|Samsung S27A950 120Hz 3D| |Microsoft SideWinder X4| |CorSaiR HX650| |Open TechBench|White LeDs|PurPle UV| 
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~|Nanpa|~
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|A8-3870k 3.5Ghz| |Gigabyte GA-A75-UD4H| |Onboard 6550D -_-| |Samsung 30nm Low Profile 2133 Cas9| 
Hard DriveOptical DriveCoolingOS
|Corsair Force GT 90GB|WD 820GB| |SamSung BluRay| |Stock Heatsink -_-| |Win 7 Ultimate x64| 
MonitorKeyboardPowerCase
|Samsung S27A950 120Hz 3D| |Microsoft SideWinder X4| |CorSaiR HX650| |Open TechBench|White LeDs|PurPle UV| 
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post #8 of 28
Quote:
Originally Posted by Ocnewb View Post
Probably just a little bit on the Core, ill downclock the Mem tho as i don't need it. If it can't run then ill just take out the 6950. Does the 5870 consume more power than 6950 or less?
They're roughly the same. AMD recommends a 500W power supply for both cards when considering putting just one in a system.
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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 
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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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 #9 of 28
Are you already running the 6970 + three 5870's on that AX750? Th power consumption of the 5870/6950 are pretty similar.
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Rig
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samsung 830 128gb ven x/gt ap-15 evga g2 650w corsair 450d 
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jbl lsr305 
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post #10 of 28
Should be fine. AX750 has been known to fail at around the 890W mark obviously with lower efficiency though.
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