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Would my psu be enough to overclock my gpu?

post #1 of 10
Thread Starter 
This is regarding my sig rig. I know the psu is a pos 650w, that badly needs replaced. I plan on replacing it with one of corsiar's top end 1200w psus when i get the funds. For now though, I'm using my gpu for gpgpu tasks that are making the funds that will get me that new psu, and the additional two gpus that i plan on adding . Overclocking can get me up to 10% more cash/hour, so it's definitely benificial. I'm not sure whether my psu can handle powering everything in the rig, plus the gpu overclocked to 950MHz. Everything else is at stock. There is also a logisys dual cold cathode kit installed. The case fans are all stock, running at 100%.
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post #2 of 10
Any quality 550w would power that thing fine.
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post #3 of 10
Thread Starter 
That's what I was thinking. This isn't a quality PSU by any means, it's pretty much junk from what I know. I could be wrong and have the best 650w psu money can buy for all I know, but I seriously doubt it. Even still, giving 300W for the gpu, my cpu takes up 140W max, bringing me to 440W. That leaves 210W for a hard drive, mobo and onboard components (onboard gpu is off), memory, wifi card, cd rom, fans, dual cold cathodes, and a usb wifi card, keyboard, mouse, and thumb drive.
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post #4 of 10
I'd say a solid 650W.

Like Corsair TX650 V2 or XFX 650W.

Although, if you plan on adding two more GPUs, you should consider a 1200W PSU. Corsair, Cooler Master Silent Pro Gold, Silverstone Strider, Seasonic or Enermax, would be good choises - also, I think tri-fire would be bottlenecked by your CPU - correct me if I'm wrong
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post #5 of 10
Quote:
Originally Posted by WhitePrQjser View Post
I'd say a solid 650W.

Like Corsair TX650 V2 or XFX 650W.

Although, if you plan on adding two more GPUs, you should consider a 1200W PSU. Corsair, Cooler Master Silent Pro Gold, Silverstone Strider, Seasonic or Enermax, would be good choises - also, I think tri-fire would be bottlenecked by your CPU - correct me if I'm wrong
A quality 750-850 would be enough for crossfire....
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The Butthurt Box
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post #6 of 10
Thread Starter 
Quote:
Originally Posted by WhitePrQjser View Post
I'd say a solid 650W.

Like Corsair TX650 V2 or XFX 650W.

Although, if you plan on adding two more GPUs, you should consider a 1200W PSU. Corsair, Cooler Master Silent Pro Gold, Silverstone Strider, Seasonic or Enermax, would be good choises - also, I think tri-fire would be bottlenecked by your CPU - correct me if I'm wrong
Troll fail
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Western Digital Caviar Black 1TB Sata3 64MB Cache Logitech G15 hec X-Power Pro 650W Antec Nine Hundred 
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Western Digital Caviar Black 1TB Sata3 64MB Cache Logitech G15 hec X-Power Pro 650W Antec Nine Hundred 
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post #7 of 10
You will be ok. AMD cards don't draw too much power.
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post #8 of 10
Thread Starter 
Also for tri crossfire with 6970's, I highly doubt 850 would be enough. each card will eat up to 300W, so 3 6 9 = 900W to plan for on the gpus alone. A 1200W psu will leave you with 300W for your cpu and other components. Yes I know the cards don't really take up 300W each, it's closer to 200W when at stock clocks, and 250 when overclocked. Planning this way prevents having to replace the psu due to a lack of power later on down the road however, and it's better to spend the extra $50-75 now, and get something that will last years to come, than to spend another $250 on a new psu when you get there.
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Western Digital Caviar Black 1TB Sata3 64MB Cache Logitech G15 hec X-Power Pro 650W Antec Nine Hundred 
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post #9 of 10
I am sorry I didn't pay attention to the part you said you will Tri-Fire.
Then I would upgrade to another PSU to be safe. high quality 1000-1200 watts will do ok
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SAMSUNG 850 PRO 1TB SAMSUNG 950 PRO NVMe 512GB NZXT Kraken X62 Windows 10 Pro 
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Asus VG236H 23" 120 Sony XBR43X800D 43" 4K TV Logitech G910 Orion Spark + Razer Turret EVGA SuperNOVA 1000 G3 
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Corsair Graphite 760T Black Logitech G502 Proteus Spectrum + Razer Turret Razer Goliathus Asus Xonar Essence STX II 
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Intel Core i7-4720HQ @ 2.60 GHz Asus G751JY Asus GTX 980M 4GB SK hynix HMT41GS6BFR8A-PB 16GB (2x8) DDR3L-1600 
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SanDisk SD7SB3Q128G1002  HGST Travelstar 7K1000 1TB HL-DT-ST DVDRAM GUC0N Windows 10 Home 64-bit 
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post #10 of 10
Thread Starter 
I plan on upgrading soon anyway, as I'm well aware that it can't power 3 6970's. Getting 3 6970's is a ways down the road though. I'm just making sure my psu isn't causing issues (been getting lock ups lately).
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AMD Phenom II x6 1090T ASUS M4A89GTD PRO/USB3 Sapphire Radeon HD 6970 8GB Corsair Vengeance 1600@9-9-9-24 
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Western Digital Caviar Black 1TB Sata3 64MB Cache Logitech G15 hec X-Power Pro 650W Antec Nine Hundred 
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Logitech MX600 
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AMD Phenom II x6 1090T ASUS M4A89GTD PRO/USB3 Sapphire Radeon HD 6970 8GB Corsair Vengeance 1600@9-9-9-24 
Hard DriveKeyboardPowerCase
Western Digital Caviar Black 1TB Sata3 64MB Cache Logitech G15 hec X-Power Pro 650W Antec Nine Hundred 
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Logitech MX600 
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