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EVGA SuperNOVA NEX 750 G and 3 GPU's?

post #1 of 7
Thread Starter 
So, the question is kinda simple, will my PSU have any chance in running this config? or should I try and find A PSU with more powerful?


Current rig:

Core i7 920 @ 4GHZ (I would most likely switch back to stock for 3 GPU config)
corsair H60 liquid cooler 2 Noctua 34 CFM push pull exhaust (not sure about wattage)
p6x58-e pro
2GBx6 G-skill 1600MHz 9-9-9-24
120GB OCZ Vertex 3 Max IOPS
1TB Western Digital Black drive
ASUS Xonar D2x (this uses a floppy connector for power)
EVGA SuperNOVA NEX 750G 750 Watt PSU
DVD R/W drive
Corsair 400R

I plan on trying to run two eVGA GTX 470's and a BFG GTX 275 OC edition



The case has 2x120m fans for the hard drive bays, with LED's
Asus VRM fan To be honest, I can remove this and I wont lose any sleep over it.

I also have a 25 Watt 120m Delta fan installed at the top of the case as I live in Florida currently and sometimes find myself in the need for an extremely loud fan when in an area without air conditioning biggrin.gif but its disconnected most of the time.

if I think of any more power draws on my system ill add it in.


P.S. I know this is a group regulated PSU, its not ideal, but I am aware, so plz don't spam about how I over-payed for my PSU, Thanks
Tower Dude
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Core i7 950 @ 3.7Ghz ASUS Rampage III Formula 2x EVGA GTX 470 O.C. edition 1x stock HSF 1x AXP 3x2gb A-DATA 1600mhz 
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120GB OCZ Vertex III max IOPS edition some LG combo drive Noctua D14 Windows 8 Pro 
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Gateway FPD2275W (1680x1050) & Insignia 1080p 4... Lenovo Business Media Keyboard (Complete with 2... Corsair TX850 V2 Antec Nine Hundred Two V3 Black Steel ATX Mid Towe 
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Tower Dude
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Cryocrap MKII
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CPUMotherboardGraphicsRAM
Core i7 950 @ 3.7Ghz ASUS Rampage III Formula 2x EVGA GTX 470 O.C. edition 1x stock HSF 1x AXP 3x2gb A-DATA 1600mhz 
Hard DriveOptical DriveCoolingOS
120GB OCZ Vertex III max IOPS edition some LG combo drive Noctua D14 Windows 8 Pro 
MonitorKeyboardPowerCase
Gateway FPD2275W (1680x1050) & Insignia 1080p 4... Lenovo Business Media Keyboard (Complete with 2... Corsair TX850 V2 Antec Nine Hundred Two V3 Black Steel ATX Mid Towe 
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post #2 of 7
3 video cards on a 750 watts is cutting it too close even if you leave everything at stock

If i recall the 400 series was very power hungry
Seravee
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Seravee
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Hard DriveOptical DriveCoolingCooling
Seagate Ironwolf Pro 10 TB LG CH12NS30 x5 Noctua NF-A14 FLX Noctua NH-D15S 
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Windows 7 64 Bit Asus PG279Q LG 49UH750V 4K LED TV Corsair Gaming Strafe RGB 
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post #3 of 7
Assuming the 275 is for phys x its not really ever going to be used so in theory it should be ok, but you will likely run full capacity alot of the time.
Silent Dominator
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Silent Dominator
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post #4 of 7
Thread Starter 
Quote:
Originally Posted by ShortySmalls View Post

Assuming the 275 is for phys x its not really ever going to be used so in theory it should be ok, but you will likely run full capacity alot of the time.

yes!

I forgot to mention that. the GTX 470's will be in SLI and the 275 will be a dedicated physx card.

from what I have read the gtx 275 actually draws 4watts more than the gtx 470 under load. 219watts vs the gtx 470's 215watts, but im also not sure how power loads work out with SLI and having multiple cards and dedicated physx etc.
Tower Dude
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Cryocrap MKII
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CPUMotherboardGraphicsRAM
Core i7 950 @ 3.7Ghz ASUS Rampage III Formula 2x EVGA GTX 470 O.C. edition 1x stock HSF 1x AXP 3x2gb A-DATA 1600mhz 
Hard DriveOptical DriveCoolingOS
120GB OCZ Vertex III max IOPS edition some LG combo drive Noctua D14 Windows 8 Pro 
MonitorKeyboardPowerCase
Gateway FPD2275W (1680x1050) & Insignia 1080p 4... Lenovo Business Media Keyboard (Complete with 2... Corsair TX850 V2 Antec Nine Hundred Two V3 Black Steel ATX Mid Towe 
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Tower Dude
(14 items)
 
Cryocrap MKII
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CPUMotherboardGraphicsRAM
Core i7 950 @ 3.7Ghz ASUS Rampage III Formula 2x EVGA GTX 470 O.C. edition 1x stock HSF 1x AXP 3x2gb A-DATA 1600mhz 
Hard DriveOptical DriveCoolingOS
120GB OCZ Vertex III max IOPS edition some LG combo drive Noctua D14 Windows 8 Pro 
MonitorKeyboardPowerCase
Gateway FPD2275W (1680x1050) & Insignia 1080p 4... Lenovo Business Media Keyboard (Complete with 2... Corsair TX850 V2 Antec Nine Hundred Two V3 Black Steel ATX Mid Towe 
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post #5 of 7
3 GPUs is pushing it on that PSU but it cant hurt to try.
   
Work Rig
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32GB 3000MHz HyperX Savage DDR4  Samsung 850 Pro 512GB SSD  Samsung 256GB SM951 M.2 SSD PCIe 3.0 x 4 (PE246... WD 3TB Black SATA 6Gbs 
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WD 4TB Red in RAID 1 WD 4TB Red in RAID 1 ICY DOCK DuoSwap MB971SP-B Fits 5.25" Bay allo... LG WH14NS40 14x SATA Blu-ray Internal Rewriter 
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CPU - Corsair Hydro H110  GPU x 2 - Nzxt G-10 x 2 + Corsair H-90 x 2  Lamptron FC-5 V2 Fan Controller 4 Aerocool Dead Silence 140mm Fans on the radia... 
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AOC i2769Vm 27-Inch Screen IPS Monitor BENQ GW2250 +1 Monitor Easymountlcd Triple Monitor Stand (002-0019) Homemade Extension and vesa mount for +1 Monitor 
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Top - CM Storm QuickFire TK (Red) Bottom - CM ... EVGA SuperNOVA 850 G2 - 80 Plus Gold Corsair Carbide Series 400R Cooler Master Storm Inferno 
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Work Rig
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CPUMotherboardGraphicsGraphics
Intel Core i7-6850K 4.5 GHz  ASUS TUF SABERTOOTH X99 LGA2011-V3  Asus STRIX GTX 980 ~1600 Core Asus STRIX GTX 980 ~1600 Core 
RAMHard DriveHard DriveHard Drive
32GB 3000MHz HyperX Savage DDR4  Samsung 850 Pro 512GB SSD  Samsung 256GB SM951 M.2 SSD PCIe 3.0 x 4 (PE246... WD 3TB Black SATA 6Gbs 
Hard DriveHard DriveHard DriveOptical Drive
WD 4TB Red in RAID 1 WD 4TB Red in RAID 1 ICY DOCK DuoSwap MB971SP-B Fits 5.25" Bay allo... LG WH14NS40 14x SATA Blu-ray Internal Rewriter 
CoolingCoolingCoolingCooling
CPU - Corsair Hydro H110  GPU x 2 - Nzxt G-10 x 2 + Corsair H-90 x 2  Lamptron FC-5 V2 Fan Controller 4 Aerocool Dead Silence 140mm Fans on the radia... 
OSOSMonitorMonitor
Windows 7 Ultimate 64 bit LINUX KXStudio AOC i2769Vm 27-Inch Screen IPS Monitor AOC i2769Vm 27-Inch Screen IPS Monitor 
MonitorMonitorMonitorMonitor
AOC i2769Vm 27-Inch Screen IPS Monitor BENQ GW2250 +1 Monitor Easymountlcd Triple Monitor Stand (002-0019) Homemade Extension and vesa mount for +1 Monitor 
KeyboardPowerCaseMouse
Top - CM Storm QuickFire TK (Red) Bottom - CM ... EVGA SuperNOVA 850 G2 - 80 Plus Gold Corsair Carbide Series 400R Cooler Master Storm Inferno 
Mouse PadAudioAudioAudio
Top of the Desk TUF Onboard Audio Cyber Acoustics Platinum CA-3550 Logitech H390 Headset 
OtherOtherOtherOther
ASUS Wi-Fi PCI Express Adapter/400 upto 800 Mbp... Tripp Lite Isobar Supressor CyberPower CP1500PFCLCD 900 Watt Pure Sinewave UPS Logitech Extreme 3D Pro Joystick 
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upHere (3.5 inch Bay)Multi Function Card Reader... 
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post #6 of 7
You're fine if it's all at stock. Since you're furthermore only using the GTX 275 for PhysX (so relatively low power consumption), you could likely keep the CPU overclock, assuming the GTX 470s are stock.
post #7 of 7
Thread Starter 
Quote:
Originally Posted by mikeaj View Post

You're fine if it's all at stock. Since you're furthermore only using the GTX 275 for PhysX (so relatively low power consumption), you could likely keep the CPU overclock, assuming the GTX 470s are stock.

yes the GTX 470's will be stock.

but you did just remind me of something. one of my gtx 470's has a AXP cooler, which has 3 fans on it.
Tower Dude
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Cryocrap MKII
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CPUMotherboardGraphicsRAM
Core i7 950 @ 3.7Ghz ASUS Rampage III Formula 2x EVGA GTX 470 O.C. edition 1x stock HSF 1x AXP 3x2gb A-DATA 1600mhz 
Hard DriveOptical DriveCoolingOS
120GB OCZ Vertex III max IOPS edition some LG combo drive Noctua D14 Windows 8 Pro 
MonitorKeyboardPowerCase
Gateway FPD2275W (1680x1050) & Insignia 1080p 4... Lenovo Business Media Keyboard (Complete with 2... Corsair TX850 V2 Antec Nine Hundred Two V3 Black Steel ATX Mid Towe 
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Tower Dude
(14 items)
 
Cryocrap MKII
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CPUMotherboardGraphicsRAM
Core i7 950 @ 3.7Ghz ASUS Rampage III Formula 2x EVGA GTX 470 O.C. edition 1x stock HSF 1x AXP 3x2gb A-DATA 1600mhz 
Hard DriveOptical DriveCoolingOS
120GB OCZ Vertex III max IOPS edition some LG combo drive Noctua D14 Windows 8 Pro 
MonitorKeyboardPowerCase
Gateway FPD2275W (1680x1050) & Insignia 1080p 4... Lenovo Business Media Keyboard (Complete with 2... Corsair TX850 V2 Antec Nine Hundred Two V3 Black Steel ATX Mid Towe 
MouseMouse PadAudio
Razer Black Mamba 5600dpi 12x20 foam pad Asus Xonar D2x 
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