Not enough pins - Gtx 1070 1x8 + 1x6 pin

[max_hfr]

Hey guys, just ordered a gygabyte 1070 aorus, and I realized my actual psu only has a 8 pin connector, however the card requires 8pin + a 6 pin. I was wondering if my 1x8 pin would be enough to safely use the card. (i am not planning to overclock it atm)

thank you in advance

 

[alexoiu]

Hi, Most probably the card will not work. try getting a molex to 6 pin adapter, or different power supply.

 

[captaincharisma]

what is the make and model of the motherboard?

 

[maxalge]

Hey guys, just ordered a gygabyte 1070 aorus, and I realized my actual psu only has a 8 pin connector, however the card requires 8pin + a 6 pin. I was wondering if my 1x8 pin would be enough to safely use the card. (i am not planning to overclock it atm)

thank you in advance

both need to be populated

if your power supply lacks the proper cables, then it is not good enough to power such a card

 

[Math Geek]

yup, can't run the card unless it has the power it needs.

you need a new power supply, or a 1070 that only needs a single 8-pin. there are plenty of them out there to get. but you can't run the card with only half power given to it.

 

[bjornl]

It won't work without the 6pin. Also the make and model of the motherboard don't matter.

You will need an adapter like these:
https://www.newegg.com/Product/ProductList.aspx?Description=6%20pin%20power%20cable%20to%206%20pin%20PCI%20express&Submit=ENE

Or you will need a new powersupply. I assume you did your homework on the quality and the wattage of your powersupply?

 

[Math Geek]

It won't work without the 6pin. Also the make and model of the motherboard don't matter.

You will need an adapter like these:
https://www.newegg.com/Product/ProductList.aspx?Description=6%20pin%20power%20cable%20to%206%20pin%20PCI%20express&Submit=ENE

Or you will need a new powersupply. I assume you did your homework on the quality and the wattage of your powersupply?

bad assumption there. he ordered it then looked, i would certainly not assume he knows anything about the psu at all.

those adapters are a terrible idea. making the right connection does not make the power to go with it. the psu having only a single 8-pin tells you the manufacturer knows it can only provide that much power. trying to milk more out of it is only asking for trouble.

only option is a new psu or a different card. the EVGA SC cards only use an 8-pin and are just as good as the more expensive Asus card. plenty of others as well.

 

[alexoiu]

More similar replies needed. Keep going on....

"It won't work without the 6pin."
"yup, can't run the card unless it has the power it needs. "
"both need to be populated"

What will be the next... ?

 

[captaincharisma]

if the PSU is that old i wonder if their motherboard has the newer UEFI BIOS

 

[max_hfr]

It won't work without the 6pin. Also the make and model of the motherboard don't matter.

You will need an adapter like these:
https://www.newegg.com/Product/ProductList.aspx?Description=6%20pin%20power%20cable%20to%206%20pin%20PCI%20express&Submit=ENE

Or you will need a new powersupply. I assume you did your homework on the quality and the wattage of your powersupply?

bad assumption there. he ordered it then looked, i would certainly not assume he knows anything about the psu at all.

those adapters are a terrible idea. making the right connection does not make the power to go with it. the psu having only a single 8-pin tells you the manufacturer knows it can only provide that much power. trying to milk more out of it is only asking for trouble.

only option is a new psu or a different card. the EVGA SC cards only use an 8-pin and are just as good as the more expensive Asus card. plenty of others as well.

His assumption was right, my wattage was good enough. My psu was kind of old anyway and I wanted to upgrade it too. I just wanted to avoid upgrading both the gpu and psu at the same time. I could'nt check my psu at the time i ordered the card and was prety sure I had 2x8 pin. Also I was asking this question since it's my first high end gpu (950 atm) and 12pins seemed to be a lot of power to me so I thought it was there just to be able to give it more power if need e.g. for overclocking.

 

[Math Geek]

oh yah it's a lot of power. that's 300w available to it. there are other higher end cards with dual 8-pins.

the good news is i have yet to see any of those overclocked expensive cards net any real world in game performance increases over the cheaper cards. you are literally only paying extra just to create more heat in your case. i've read more reviews than anyone should and not seen a single one of the 1070 cards outperform the others. an extra 50 mhz of overclock nets literally nothing in game. they all boost to similar speeds giving the same handful of fps increases. from the founders editions to the super high end ones!!

 

[max_hfr]

oh yah it's a lot of power. that's 300w available to it. there are other higher end cards with dual 8-pins.

the good news is i have yet to see any of those overclocked expensive cards net any real world in game performance increases over the cheaper cards. you are literally only paying extra just to create more heat in your case. i've read more reviews than anyone should and not seen a single one of the 1070 cards outperform the others. an extra 50 mhz of overclock nets literally nothing in game. they all boost to similar speeds giving the same handful of fps increases. from the founders editions to the super high end ones!!

Yea you're right the fps/$ is definitely not as good as founders, however it was actually the cheapest option in my country.
I could have ordered founder's edition on Nvidia's website but I didn't want to wait for it to be shipped + with shipping costs it was almost the same price.

 

[william p]

It's a 150W card. 75W is all it's going to take from the PSU cable.
https://www.geforce.com/hardware/desktop-gpus/geforce-gtx-1070/specifications
So anything above a single 6 pin is just gingerbread. i would put a splitter on the 8 pin with 2-6+2 ends. I wouldn't do this on a card that really needed that much power. But it's a BS situation, and so a BS solution is probably good enough.
Even a 1080 draws 180W. So 105W from the PSU.
https://www.geforce.com/hardware/desktop-gpus/geforce-gtx-1080/specifications
Still well within the capability of a 150W 8 pin cable.
The UEFI question is very real. A legacy BIOS GPU can run on anything because the UEFI MB BIOS can be set for backwards compatabilty. But UEFI cards require a UEFI motherboard. Check with the GPU maker about this because the vendors are clueless. cards from MB makers tend to have UEFI BIOS to match their newer products. Other aftermarket like Zotac and PNY offer Legacy cards. This has nothing to do with the age of the GPU chip.

 

[Math Geek]

It's a 150W card. 75W is all it's going to take from the PSU cable.
https://www.geforce.com/hardware/desktop-gpus/geforce-gtx-1070/specifications
So anything above a single 6 pin is just gingerbread. i would put a splitter on the 8 pin with 2-6+2 ends. I wouldn't do this on a card that really needed that much power. But it's a BS situation, and so a BS solution is probably good enough.

VERY VERY WRONG!!!

the founders edition only needs that much but the fancy overclocked, super cooled ones need more. hence the extra 6-pin. it VERY MUCH NEEDS the extra power and will not work without it. suggesting to split a 150w connection into 2 x 150w connections and somehow thinking it is going to work is simply silly. just plain silly and VERY wrong.

 

[william p]

I seriously doubt a 150W card suddenly needs 300W. A single 8 pin 150W +75W pcie slot=225W. if it's split into a 6 pin and a n 8 pin connector it can still supply 225W without any overload. That's a 50% power increase. Of course he could just buy a great big PSU. 8+6 pin is what you find on old 2GPU cards like the HD6990,HD7990. i don't think any modern single GPU needs that.

 

[AnonymousAndy]

Just some extra info to further derail this thread, even the 1070s that require dual 8pin can and do work when undervolted down to 150w. Nothing wrong with a molex to sixpin adapter if the PSU can supply enough power. And just to be safe, his 1070 could easily be edited to ensure it drew no more than 150w so that he could still use it until he saved up for a new PSU.

Miners frequently undervolt the cards, while overclocking, running at 100%. The cards that have enough connections to pull 300w can be edited to run with less than 150w, with no loss in performance. This efficiency can be achieved with a simple slider change in a program like MSI afterburner, no advanced settings required. No loss in performance compared to out of the box, not overclocked on full power.

But, we still need to know the exact PSU specs. It might not even be able to support the reduced 150w power draw for all we know.