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GTX 480 SLI: Need PSU suggestions - Page 2

post #11 of 27
had tx 750. on x58( i7 930) @ 4.2 ghz and 480s @ 850cores, shut down pc an fan on psu spun for like 5 mins. Got ax850 not a problom then sold a 480 and evga tradeup for 580.
Now with sb cpu draws liek 150 watts less power @ 4.2 ghz. so 750 should b good.
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post #12 of 27
heres a cheaper one
http://www.newegg.com/Product/Produc...82E16817322011
Hope you got cooling those 480s run hot
post #13 of 27
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post #14 of 27
Thread Starter 
That looks nice...

I haven't heard of Silverstone though. I guess it's a popular brand? I have heard of SeaSonic so the X-850 looks nice.

However, it sounds like 850 watts is really the minimum for this type of setup. What happens if I upgrade to 2x GTX 580 or something in the future? I might feel a tad bit safer with 900 - 1000 Watts but what do you think?
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post #15 of 27
System in sig but once I pushed the overclock past 875 core on my 480s my computer kept shutting down during BF BC2 or Crysis.

850W is barely enough. Btw I have Gigabyte 480 SOC and MSI 480 Lightning so I don't even have to pump voltage into either one to get 875 core (1.05V on both)

Basically go for 1000W or higher, Antec, Corsair, Seasonic.
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post #16 of 27
Im on my phone right now but grunion did a comparison of sli 480 vs 5870 cf, he got 900 or somewhere there on the 480s and it was pulling 850 watts from his power supply and over 1100 from the wall he pushed it further and he maxed out his 1000 watt psu
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post #17 of 27
Im on my phone right now but grunion did a comparison of sli 480 vs 5870 cf, he got 900 or somewhere there on the 480s and it was pulling 850 watts from his power supply and over 1100 from the wall he pushed it further and he maxed out his 1000 watt psu

edit:got it he was 850 mhz core speed

http://www.overclock.net/graphics-ca...0-results.html
Edited by obsidian86 - 7/23/11 at 6:10am
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post #18 of 27
750 is enough if it is a quality PSU.

Yes one 480 can pull up to 250, but two will not pull 500W. If you look at the SLI reviews when the cards came out a stressed system was pulling something like 700 from the WALL, which means somthing like 650 from the PSU.
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post #19 of 27
Thread Starter 
Thanks for all of the replies everybody.

What I ended up doing was using a Corsair TX-850W PSU that I had in my file server. (I put my Antec TP-750 Blue in the file server as a replacement)

Everybody wins and I didn't have to spend any money

(I think this PSU is a "decent" to "good" PSU so hopefully it will work for what I need...)
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CPUMotherboardGraphicsRAM
Intel i7-6700k ASUS Z170 Pro Gaming Gigabyte G1 Gaming GTX 980 G.SKILL TridentZ Series 16GB (2 x 8GB) (3200 MH... 
Hard DriveHard DriveOptical DriveCooling
Samsung 840 EVO 128 GB SSD Samsung 850 PRO 1 TB SSD Lite-On 12X Blu-ray Burner (IHBS112-29) Noctua NH-D15 
OSMonitorMonitorKeyboard
Windows 10 Enterprise ASUS X34 Dell 2405FPW Filco Majestouch 
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post #20 of 27
hx850.
    
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