Urgent! Can 6 pin plug in to 8 pin card?

[Jayce Lou]

Need help urgent! I've just bought a Gigabyte GTX 950 XTREME Gaming and realize that my 450W PSU only have a 6 pin plug but the card require 8 pin. Will it still OK to plug in 6 pin PSU to 8 pin card. Thanks.

 

[Gam3r01]

While it will technically fit, I cant recommend using it as such.
The card requires the wattage from the PCIe lane plus the 8pin. If its designed for the 8, use 8.

 

[Jayce Lou]

While it will technically fit, I cant recommend using it as such.
The card requires the wattage from the PCIe lane plus the 8pin. If its designed for the 8, use 8.

Umm... I don't overclock and I don't game much. Giving the requirement for PSU just 350W and mine is a 450W, so, would it by sufficient wattage? BTW, what is the missing 2 pin does?

 

[Gam3r01]

6 pins deliver 75w where 8 pins delivers 150w.
You can try it, but if the system is unstable you know why. I dont recommend it.

 

[Jayce Lou]

6 pins deliver 75w where 8 pins delivers 150w.
You can try it, but if the system is unstable you know why. I dont recommend it.

Understand. Appreciate and thanks for your help.

 

[NeilV]

6 pins deliver 75w where 8 pins delivers 150w.
You can try it, but if the system is unstable you know why. I dont recommend it.

I've just upgraded from a HD4890 which used 2x6pin power leads to an XFX 7870 which has 1x6pin & 1x8pin and it WILL NOT display anything with a pin plugged in to the 8pin socket, despite an article I read on here which said that it might because the two missing pins are only ground pins. I realise you have a different card. Just wanted to help out where I can.

 

[Jayce Lou]

6 pins deliver 75w where 8 pins delivers 150w.
You can try it, but if the system is unstable you know why. I dont recommend it.

I've just upgraded from a HD4890 which used 2x6pin power leads to an XFX 7870 which has 1x6pin & 1x8pin and it WILL NOT display anything with a pin plugged in to the 8pin socket, despite an article I read on here which said that it might because the two missing pins are only ground pins. I realise you have a different card. Just wanted to help out where I can.

Thanks for your advice.
For my case it seem a bit odd, you see, Giagbyte officially "suggested" for 350W PSU but require 8 pin connector? I mean, does any 350W PSU has a 8 pin PCIe connector? I really don't understand.

 

[Gam3r01]

Manufacturer recommendations are skewed. The dont know the quality of the units in the systems people are using, so they throw out a number above the actual needs.
They say 350 at minimum, that dosent mean much.

 

[rcald2000]

The 8 pin confuses me too. I think the TDP for GTX 950 is only 90 watts. With the PCIe slot providing 75 watts by itself, I don't understand the 8 pin connector. I'm so confused why Gigabyte would do that.

 

[rcald2000]

@Jayce Lou, I suggest that you call Gigabyte customer support and inquire. If you get an answer, please update this thread, as I'm very curious to know what they say.

(626) 854-9338
Open: 8:30 am -5:30 pm PST (Monday - Friday)

 

[Jayce Lou]

I write to them:
Question: I just bought the card and realize that it needed 8 pin PCIe connector, which is out of my expectation and I guess many others do. Why not just the COMMON 6 pin? The website "suggested" PSU was 350W which I guess don't have one.

Reply:
Answer:

Dear Jayce Lou,

Thank you for your kindly mail and inquiry. According to the product specification, the suggested power requirement for this card is 350W (with one 8-pin external power connector). In other to have sufficient power for optimum performance, we suggest you to connect the 8-pin external power connector.

Regards,
GIGABYTE

 

[Jayce Lou]

It simply mean "just plug in the 8 pin connector and don't ask no question!"