GTX 1070 - Using a splitter to power the card on a Dell Inspiron 3670

fungiignuf

Prominent
Jan 4, 2018
5
0
510
I recently purchase an Nvidia GTX 1070 graphics card to put in my new Dell Inspiron 3670. I have never had a graphics card that required an auxillary power cable, which the GTX 1070 does (my bad, didn't research enough). I have spoken to both Nvidia and Dell about adding a splitter, so that I can split the 8 pin cable into two, and power my graphics card as well. Neither were able to give me a definitive answer.

Has anyone tried this or know if it's a plausible idea or not? My power supply has a 290W max and as far as the splitter goes I have been looking at this or something similar.

Any help or thoughts would be appreciated.
Thanks.
 
First of all i wouldnt power a gtx 1070 with a 290 Watt PSU. I would go with atleast 450 Watt minium. 550 recommended.

The Splitter thing: i guess you wanna split the 8 Pin connector that does connect to your CPU on your Motherboard or?
You cant split that thing to your GPU. Only thing you could do it Molex or Sata to 6+2Pin.
The article in the Link is a native 8Pin GPU adapter to 2x 6+2Pin.
 


You can't power that pc with the current psu. The 8 pin cable you have is for the motherboard only and if used to power the gpu will kill the card (and possibly rest of the system). The only way for you to get this to work is to get a new QUALITY 500w or more psu.

However this is impossible since dell uses a proprietary connector thus resulting in a new psu not being compatible. I suggest you return your 1070 and get a gtx 1050ti as that should work.
 


Would a Molex or Sata to 6+2Pin work even though I only have a 290W PSU?
 


Will it work? Yes it will i already did stuff like that for a short period of time.
But as i said and as jaslion said, i wouldnt power a 1070 with a 290 Watt power supply.

I bet that the PSU will die within a short period of time or damage your components
 


I have benchmarked the GTX 1050 ti vs the GTX 1070 and the GTX 1070 far surpasses it. I spoke with Dell and the highest reccomened PSU upgrade would be 665W, and this would allow me to use a GTX 1060, which is still inferior to the 1070, but better than the 1050 ti. So I think I would rathed do that.

However, please forgive my ignorance as far a PSU's goes, I am assuming this is a lit irregular if it is even possible, but would I be able to power the GTX 1070 with some sort of external PSU? Maybe I'm being a little too picky about which graphics card i need, but the GX 1070 seems far superior to my other options and I have already purchased it.

 
665Watt is also kinda bs to me.
A decent 450 Watt PSU is more then enought for a 1070.
This PC does have an I3 8100 with a TDP of like 65 Watts or so and i would say that a 1070 is pulling about 200 Watts at its best.
With all the Other compontents you will be at 300 to 330 Watts of power under full load.

Power the GPU with a different PSU will be impossible and even worse...
You have to turn on the PC and in the same moment you have to short 2 pins in the 24PIN ATX connector so the second PSU will also power on.

If you dont want to ruin your system within a few months i think you have 2 options:

1. give the 1070 back and go for a 1050 or 1050ti.
2. Sell the PSU and buy a new one with atleast 450 watt.

Everything else like adapter or seconds PSU will cause more problems then it solves...
 


Is it worth risking putting in a 450 watt PSU when Dell says the Inspiron 3670 is not rated for anything higher than 365W?
I have read a few articles suggesting that non dell PSU's are diffucult to install, for example my current PSU has two cables that plug in to the motherboard an 8 pin and a 4 pin
 
Smoke?

Step 1, use crappy PSU.

Step 2.

Burning-Computer.jpg


Lead to Step 3

Untitled-design-36.jpg


Don't try to save little $ to loose $$$$$$$$ - Upgrade.