GTX760 does not match PSU HELP?!

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Chris369

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Dec 4, 2014
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Hello, before I begin I want to say that I am a complete noob at this so,
Today my brand new Asus GeForce GTX 760 DirectCU II OC arrived which is a massive upgrade from my GT 640. I checked everything, I took the old card out and placed the new one firmly inside and secured it. Being the noob which I am I didn't connect the new card with and power cables because my old one was just in the PCIE port without any power cables coming out of it. So I proceeded to turn the computer on and a message appeared " Connect your power supply to your grpahics card " or something like that. I opened the case plugged the 8 pin into the card and I was left with 2 x 6 pin connectors and the big question was, where do these go ? every single spare cable I had coming from my PSU did not fit or was just a long 4 pin. none of the cables coming from my PSU or anything else matches the graphics card. What should I do ? buy some kind of a adapter that will make my 4 pin into 6 pin ? Or just buy a new PSU ? I really don't know what to do if someone could answer me that would be great.
P.S my PSU is ATX Power Supply A520. My PC was pre built so I was expecting a crappy CPU.
 
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jazzy663

jazzy663

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I looked up your specific GPU and it looks like it takes an 8-pin PCI-E. You plugged that in, right? You didn't mention what happened after turning on your computer after plugging your GPU's power in.

I'm not quite understanding your problem. If your computer and GPU are running smoothly and there are no problems, then the other connectors are extra and you can just leave them hanging. Preferably out of the way of other components. As I understand it, you don't need to take any further action.

If you really are having a problem, please go into more detail and I'll do my best to help you.
 
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jazzy663

jazzy663

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Am I misunderstanding something here? He said he plugged in an 8-pin. All he's asking is 'where do the other cables go'? I don't know the exact model PSU he has, but it looks like a 520W and, while pushing it, that's sufficient for a 760.

Edited post: That was a response to the above post.
 
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bignastyid

bignastyid

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When looking at power supplies its not just about their advertised wattage. Most cheap power supplies like the one in the OPs system can't even deliver their advertised wattage, skimp on protection circuits and have bad voltage regulation. This can(and often does) lead to damaging other components in the system.
 
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jazzy663

jazzy663

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Of course you're right, but I'm still speaking in reference to the OP's first post. He mentioned nothing about damaged components or insufficient wattage. A PSU upgrade would be beneficial, but as far as I can tell (granted that's not much, all we have to go on is the OP's first and only post), his system is running fine.
 
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bignastyid

bignastyid

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He has yet to actually stress the system with the new card since the PSU lacks the proper power connections to power the card. It seems to me like he is using the 8-pin to 2x6-pin adapter that comes with the card and wondering how to plug those in since the PSU lacks pci-e connectors. A 520w psu that's lacking pci-e power connectors is very likely based on old design(plus it's a generic) so more than likely it has a very weak 12v rail. The best option here is to replace the PSU. Even if it did have the proper connectors I would never recommend using a generic 520w PSU to power anything.
 
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jazzy663

jazzy663

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I'm impressed that you pulled that much information from the OP's first post. I forgot to consider putting the card under full load. Alright. Something like a CX600 or CX600M sounds good, but it doesn't look like the OP is paying much attention to this thread...
 
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Robertwhyte

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Don't worry about those extra cables, they are extras, if your system dosn't use all of them, just tuck them away neatly. BUT i would recommend upgrading your power supply anyway, if you dont want extra cables go with a modualar PSU.
 
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bignastyid

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While the CX series is better than a generic, they use some cheaper caps that have a higher failure rate. The 550w XFX is a much better choice, and usually about the same price as the cx600.
 
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Chris369

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Hey, I wasn't expecting that many replies lol. well the computer doesn't even start as I said it only displays a message saying that my graphics card needs to be connected to a power supply. I didn't connect it because
A. My old GPU was only attached to the motherboard and nothing else
B. Along with the card a power cable has been attached. One side has a 8 pin connector which goes into the GPU and 2 x 6 pin connectors which goes into the power supply. The issue here is I don't have any 6 pin plug things coming out of my PSU so overall I can't connect the GPU at all. if you get what I mean.
If I bought a 4pin to 8pin connector and plugged that into the GPU would that work? Im sorry if that sounds chaotic but I really don't know what to do.
 
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jazzy663

jazzy663

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Nope, I misunderstood your post. You should read the exchange between bignastyid and I - he blew me clear out of the water with knowledge. Adapters are not good on stock PSUs (thanks for the heads-up, bignastyid). Then, look at Blackbird's suggestion for another PSU.

When you gave the error message, I thought that your computer had booted normally and displayed it as a Windows error. I've never had this error so I wasn't aware - I thought the card was drawing enough power from the board to at least display the desktop.
 
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Chris369

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If you could take a look at this,
http://www.ebay.co.uk/itm/QUIET-ARTIC-BLUE-750W-ATX-PSU-8-PIN-SATA-PCI-E-120mm-FAN-POWER-SUPPLY-/111480838397?pt=UK_Computing_PowerSupplies_EH&hash=item19f4c698fd
Would this be good enough ? It has 2 6pin ports which I require. I cannot spend too much as I just bought a new monitor and gpu so Im a little bit low on cash.
 
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morrisct

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Chris, does your PSU not have a single 8 pin connector? You're not required to use the adapter.

If not, a smaller gpu such as a gtx 750 TI (Most models do not require external power other than the pci-e slot) will be a massive upgrade from what you have.

Or upgrade as the others have stated
 
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Chris369

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Nope, It only has 4pin connectors and nothing else.
 
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