1080TI shutting down pc

[yzfspecvr6]

System

i7 7800x factory speed
Tuf x99 mark 2
1080TI GPU
650 watt thermal intake psu

my system ran perfectly fine with my 1070 I bought a 1080TI Used * ya ya i bought it used ** installed it and pc runs fine but under gaming it shut down twice on my temps only hit 77C

my psu has a spare slot 8 PIN on it not being used if i ran a pci cable 8pin from that to the 4 pin on my gpu would that free up some power for it to run better ?? I read online some people did that and it worked... if thats my problem

any ideas ?


I just used pcpartpicker to see if there was problems

https://pcpartpicker.com/list/#problems

it says

1 additional EPS power connector is needed.

 

[EarthDog]

4-pin on the GPU? There isn't a 4-pin on the GPU. The GPU needs 2x 8-pin PCIe power connectors.

How old is your thermaltake (thermal intake ) PSU? A quality and properly functioning 650W PSU should have no issues running that machine. That said, the SMART series was a functional PSU, but not much more according to Jonnyguru...

Do you have another PSU around you can test with?

 

[DaveB]

System

i7 7800x factory speed
Tuf x99 mark 2
1080TI GPU
650 watt thermal intake psu

my system ran perfectly fine with my 1070 I bought a 1080TI Used * ya ya i bought it used ** installed it and pc runs fine but under gaming it shut down twice on my temps only hit 77C

my psu has a spare slot 8 PIN on it not being used if i ran a pci cable 8pin from that to the 4 pin on my gpu would that free up some power for it to run better ?? I read online some people did that and it worked... if thats my problem

any ideas ?


I just used pcpartpicker to see if there was problems

https://pcpartpicker.com/list/#problems

it says

1 additional EPS power connector is needed.

EPS connectors are for the motherboard, not the GPU. Your motherboard has an 8-pin EPS and a 4-pin EPS connector so I assume you're talking about the 4-pin EPS on the motherboard. As ED mentioned, the 1080Ti needs two 8-pin PCIe power connections.