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gpu needs 6 pin power connector..... what should happend if I don't use a 6 pin p.connector

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  • GPUs
  • Graphics Cards
  • Power
  • Graphics
Last response: in Graphics & Displays
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June 26, 2014 11:06:55 AM

hii...friends...... I want to upgrade my gpu I eat to buy a geforce gtx 650 1gb ddr5 graphics card.... but the problem is I can't understand that it needs 6 pin power connector. what is power connector???
please someone tell me what is 6 pin power connector????

More about : gpu pin power connector happend pin connector

a b U Graphics card
June 26, 2014 11:12:36 AM

It's a 6 pin power connector from your power supply - the PCIe slot can't supply enough power for the card so it needs to get power from your power supply. If it's not connected your GPU won't have enough power to operate.
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a c 206 U Graphics card
June 26, 2014 11:16:26 AM

Most versions of the GTX650 need a six-pin PCIe power cable. It is similar in appearance to the 4- or 8-pin CPU power cable (but is keyed differently). Any modern PSU at or above 400W will have at least one (and a few lower have it too). More powerful PSUs may have four or more of them for running multiple graphics cards.
If your PSU does not have this cable on it, sometimes (but not always!) an adapter can be used to convert two molex plugs into one PCIe plug. Any PSU that lacks this cable may also lack sufficient +12V amperage to actually power a graphics card, regardless of what its label claims.
If available to you, one alternative is the GTX750. It does not need this power cable, although it is a more powerful card than the GTX650 (it is a lot more efficient).
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a b U Graphics card
June 26, 2014 11:17:43 AM

According to standards, add-in boards such as graphics cards can draw a maximum of 75 watts from a PCI-e slot on a motherboard. If a graphics board needs more than that to operate, the manufacturer of the graphics card adds an additional connector to the card so that it has more than one source from which to draw the power it needs, increasing the total amount of power the card can use.

A 6-pin PCI-e power connection on a graphics card adds another 75 watts of available power to the overall amount the card is able to draw, when operating in the computer.

If a card has a 6-pin PCI-e power connection, it is not optional, it's required for proper operation. You run the risk of random system malfunctions, possible damage to the system, and the computer may simply refuse to run at all, until the power requirements have been fulfilled.
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a b U Graphics card
June 26, 2014 11:20:18 AM

just to add - you can get converters - to convert 2 x molex into 1 x 6 pin PCI etc..
Sure you can get SATA power to 6 pin PCI as well
so you should be able to get it sorted one way or another.

Cheers
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a b U Graphics card
June 26, 2014 11:31:40 AM

I have to second what Onus said when he brought up, PSUs lacking the correct cabling, often can also be lacking sufficient amperage to be adapted safely, and also that the GTX750 would be a better alternative.
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June 26, 2014 11:33:18 AM

my psu has a 4 pin power connector. can I convert it into a 6 pin power connector?
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a c 206 U Graphics card
June 26, 2014 11:38:17 AM

No. That power converter is for CPU power on the motherboard. What is the brand and model (not just wattage) of your PSU? Listing your other components may also be useful if you need suggestions for alternatives.
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June 26, 2014 11:43:46 AM

Bestec----this is the brand
Tfx0250p5w b----this is my psu model number
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a c 206 U Graphics card
June 26, 2014 11:53:15 AM

Ouch. Although not the dreaded -12E, you have an extremely weak PSU that is not capable of [safely] running any graphics card needing a PCIe power cable. You'll either need to upgrade that first, or get a different graphics card. The GTX750 would be a great choice, if it is within your budget. Otherwise, a HD7750 (GDDR5 version, not one of the DDR3 abominations) would be decent.
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June 26, 2014 12:10:07 PM

can you please tell me some PSU model name that can be good for geforce gtx 650 1gb gpu....with 6 pin power connector
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a c 206 U Graphics card
June 26, 2014 12:36:31 PM

It appears that you have a TFX PSU, one of the long, thin ones. I am unaware of any PSUs in this size that have that connector. A PSU like http://www.newegg.com/Product/Product.aspx?Item=N82E168... however, is high quality and good for its label, so would have no trouble with a GTX750Ti (which is a lot stronger than the GTX650). Even the GTX750 (non-Ti) is a stronger card, and will also run on that PSU.
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June 26, 2014 12:45:44 PM

well....thanks for your help. I will try this one...
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