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PSU Sli ready but not Crossfire?

post #1 of 8
Thread Starter 
So my power supply is getting annoying, a very high pitch squealing noise is being emitted from it. I was looking at the Corsair 750watts for about 100$ and i read the specs, it say "sli ready" "crossfire NO". Wouldn't both sli and crossfire use the same power connectors so if its sli ready it would be crossfire ready to?
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post #2 of 8
Think it's just coca cola-pepsi like crap, Certain dated PSU's were only either Crossfire Certified or SLI Ready. Don't quote me on that though I'm sure someone will let you know for sure.

It would do either no problem
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post #3 of 8
A corsair 750W power supply will be able to support crossfire any day of the week up to 6970's, if you go into two 6990's territory then you may need something heavier duty.

There seems to have just been an error on the website's information for the product, do you have a link to the page where you are seeing this?

Like you mentioned yourself, SLI and Crossfire ready are one in the same, generally it's just referring to the amount of 6/8pin pci connectors that they have placed into the PSU, and the higher amperage necessary to supply those two cards. If you picked up that supply, i'm certain you'd have no future issues, Corsair is most often top notch.
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post #4 of 8
Make crossfire/SLI capable PSU? Easy, give it enough cables and power to do the job.
Make your power supply SLI ready? Send a check to Nvidia. Same happens with AMD/ATi.

A 750w will run a pair of any single chip AMD cards, and will run a pair of almost every single chip Nvidia card too (It may struggle with dual 480/580, but that's it).
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post #5 of 8
If it says sli ready it will be crossfire ready to i think some dont list both might be a licensing agreement where they have to pay extra to have it wrote on the psu.
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post #6 of 8
It's just a marketing ploy, really. There is nothing special that makes a PSU "SLI Ready" versus "Crossfire Ready", it's just a way to get the unedumacated consumers to go for higher watt, more expensive PSU's if they think they might run more than one video card in their system. And judging by the rig in your sig, you need nowhere near 750 watts anyway, but I don't know what you're planning either.
post #7 of 8
Thread Starter 
oh, sorry for not elaborating on what i plan on doing. I plan to sli or crossfire in the near feature either 460s, 560s ti or the next best 150$ card in a few months or so. I don't want to worry about my power needs.
Current Rig
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CPUMotherboardGraphicsRAM
i5 4670k z87e-itx Radeon 7770 2x4gb Samsung Wonder Ram 
Hard DriveOptical DriveCoolingOS
ocz vertex 128gb Some Random LG Custom Loop Windows 8 
MonitorKeyboardPowerCase
acer 23" cooler master stormtrigger Corsair CX430 prodigy 
Mouse
steelseries sensei raw 
  hide details  
Reply
Current Rig
(13 items)
 
  
CPUMotherboardGraphicsRAM
i5 4670k z87e-itx Radeon 7770 2x4gb Samsung Wonder Ram 
Hard DriveOptical DriveCoolingOS
ocz vertex 128gb Some Random LG Custom Loop Windows 8 
MonitorKeyboardPowerCase
acer 23" cooler master stormtrigger Corsair CX430 prodigy 
Mouse
steelseries sensei raw 
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post #8 of 8
Okay then something in the 650 watt range will be best for you.

Look here: http://www.overclock.net/t/183810/faq-recommended-power-supplies
Edited by bR0ken_pr0Jector - 2/3/12 at 4:03pm
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