Newly installed gigabyte 750 TI on dell xps 8300

frustrated947

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I have this somewhere on your site, but couldn't find it.
I had trouble with my Dell and my graphics card ATI/AMD 5770 HD radeon.
I just put in a new Gigabyte 750-TI with NVidia Chip. Model # GV-N75T0C2-2GI (Over Clock)
I read that it didn't need a 6 pin connector, yet there is on for it. I connected the 6 pin connector since it was there and I had it available because it was on my 5770 card. This won't hurt the card will it? What is the purpose of the 6 PIn if it doesn't require it? Thanks
 
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Hello... the "OEM" GTX750 ti is only a 60 watt GPU and 5 amps at 12Vdc... Power is provided through the PCIe MB connector... Your card being "Overclocked" might need slightly more, and provides a connector to use, and not over stress the MB connection. What does Gigabyte recommend for your card? Do you got a toll free # to ask tech support? or email them this question?
 

Rogue Leader

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Hold on.

If your PC has a connector that fits the GPU it IS PCIe, th connectors are actually keyed differently if they will not work. This connector if it fits is fine for that GPU. If it does not fit the GPU should have come with a converter cable where you can use a spare molex connector to plug in to the GPU. Also the card will only draw what it needs, so its not like the connector will feed the card "more" power.

This is a simple problem don't bother with tech support.
 

frustrated947

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I got lost a little on your answer, If the connect say PC8, (i think), and it fits good, it clicks in place, will this connector hurt the card? Maybe too much power? Does it come from the power supply from the mother board, or power supply it self? Is the connect a PCIe or just power? I've been on hold with gigabyte for 1/2 hour now.
 

Rogue Leader

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It comes from the power supply, it will not provide too much power, the card will only draw the power it needs. It comes from the power supply and if it clicks into place, you are fine. Its a PCIe power connector (it just provides power, all PCIe power connectors do).
 

frustrated947

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Thanks, That sounds better, from what I gather it won't hurt the card, plus if it needs extra power for some reason, it will get it. I thought maybe the pin was for over clocking. Thanks for all your help.
 

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No problem glad I could help out.
 

frustrated947

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Here is what I did. I finally got trough to gigabyte, they said the card didn't need a 6 pin connector to use. I disconnected the 6 pin "P8". it goes to the power supply not the mother board. The PC would not boot up, it said to connect the PCIe connector. I then re-connected it to the video card, and it booted up. It is on a PCIe 2.0 bus. If the connector goes to the power supply, is that too much power for it? I just don't want it to burn out or over heat.
 

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Like I said the connector is interchangeable with PCIe, it goes to the power supply as it is a power connector (and this is the same on any GPU). Its called a PCIe connector, but has nothing to do with the actual PCIe bus in your computer, its just a standard for connectors.

It will not deliver too much power, the card draws the power it needs, that connector has to be rated for the max the card will draw (which it is).

Trust me, nothing is going to burn out, you are totally fine.
 

frustrated947

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Whew, as you can see, this is all heavy to me. Thanks for explaining it again about the connector. I think if there was a problem with too much power, it would have burned up by now. I'm going to let this rest now. It's been on for over 3 hours, and nothing has happened. It is a very quite two fan graphics card. I like it very much. Thanks again for your time.
 
Hello... Dell calls the connector "P8" it is in truth a PCIe power connector... as you found out with using it with your 5770 card B ) I would recommend having it connected and not "Over Current" your PCIe MB connector... the "safe reason" they put it on your model of GTX750 TI.
 

frustrated947

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It is a "P8" connector, I've been looking on google, found the following link http://www.playtool.com/pages/psuconnectors/connectors.html#pciexpress It shows where if you didn't have a PCIe connector, how you can hook up to "TWO" other power supply connectors that go into "ONE" PCIe" connector. So all power comes from the power supply. I just thought that the PCIe "must" go to the motherboard, not power supply. That's why I thought maybe too much power was going to the video card. This site is great, I got some very good answers and made my situation a lot better understanding components, etc. The 750 TI is working great, I just don't understand the "over clocking" on the card, but I'll get it. I don't know if overclocking is good or bad, or does the video car use it automatically when it needs it. I'm going to search for a program that will tell me how much wattage all my components are using so I can see how my power supply is doing to handle this. Thanks again for all your help. The Rep at Gigabyte was no help, they usually don't help me from other vendors also, better to come to this site for answers.
 

Rogue Leader

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Right those two connectors are molex connectors. Its not an ideal situation to use those, but it would work.

But all power into your card does not just come from the power supply. The slot in the PC provides a lot of its power, up to 75w, the 6 pin connector, by PCIe standard provides up to an additional 75 watts.

I can see how it would be confusing to call it a PCIe cable when in reality its from the PSU, not the motherboard.
 

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