Computer Won't Boot

[amdieter549]

When I try installing my strix gaming GeForce gtx 1080 11gps gddr5x into my strix z270e gaming motherboard, my computer won't boot up. No fans run just all the led's. The gpu lights up and 2 out of the 3 fans are running. Once I disconnect the gpu, the computer will boot up into windows. Does anyone know the problem to why?

Specs:
CPU: Intel i7-7700k kaby lake
MOTHERBOARD: Asus Strix z270e
MEMORY: G.skill Ripjaws V 2666
SSD: Samsung 850 EVO
POWER SUPPLY: Evga Supernova 650 G3
COOLER: NZXT Kraken X62
GPU: Asus Strix gaming GeForce Gtx 11Gps GDDR5X

 

[Reise Martin]

Check all the cables. Make sure your using a PCIE cable and not a cpu or Type 4 cable. Sounds like the psu is not delivering enough power.

 

[amdieter549]

The only cables I have read vga on them. Is that them?

 

[Reise Martin]

The only cables I have read vga on them. Is that them?

Did you build the computer yourself?

 

[amdieter549]

Yes

 

[Reise Martin]

Yes

The cable going into the graphics card from the psu. Check that it is the correct PCIE cable and not another cable.

 

[amdieter549]

Yes it looks that way

 

[amdieter549]

Even when I power it on my mouse or keyboard won't light up.

 

[Binaryname]

Your power supply is far from good enough, you have to upgrade to something like a 750, or maybe even 850 gold to be sure you have enough watts

 

[amdieter549]

So your saying I need more power? If so how much does that gpu actually pull from the psu?

 

[AlternativeFactsForPresident]

You don't need more wattage the 12v rail on the g3 600 can easily handle that load, but just for future reference, the g3 series is pretty bad and way too expensive, i'm 99% sure that it's not your psu failing.
Try these steps instead, if this doesn't work i would try to rma the gpu.
1. Reset CMOS
2. Install Drivers(boot up with your igpu and install the correct drivers for the gpu from nvidia's website)
3. If none of the above work, the last step is updating your bios, this is not difficult to do, just take your time and don't rush the installation.
4. If you know anyone with a computer that can handle the 1080ti, then try your gpu their computer and see if that works
5. If none of the above give any results, rma the gpu.