[SOLVED] I overclocked my cpu to 5Ghz but now i cant ..

[encise]

Hello, when i was using my MSI Z370 Mortar , i overclocked my i7-8700k to 5Ghz ( 1.350v ) , it was stable, but now when i bought my new Z390 Aorus Pro , i tried to overclock it to 5ghz but i couldn't, when i stress my cpu my pc crash with a blue screen says that " your pc ran into a problem etc .., same thing with 4.9, 4.8 with 1.350 only was stable for me, what's the reason, here is what i changed in bios:
http://prntscr.com/mbq0m2
http://prntscr.com/mbq0r8
http://prntscr.com/mbq0xq
http://prntscr.com/mbq131
I tried many settings and options, nothing worked.
The temp is good also.
specs:
gigabyte z390 aorus pro
GTX 1080 TI Aours
Corsair 32GB Ram
H100I liquid cooler
Corsair RM850x powersupply
Thank you

 

[WildCard999]

Pull off that 8-pin as it may be a 2x4-pin. If so connect that to the 4-pin and use a 6+2 for the 8-pin.

I just found a 2x4 pin connector, i connect the 8 pin in PSU and the other side wich is 4+4-pin in the mobo ( i connect the first 4 pin cable in the 4-pin connector on mobo , and left the other one ( 4-pin ) as is )
Here where i connect the 8pin in PSU:

And i tried to overclock still didn't work

If it's still not able to do a stable 5ghz overclock after this connection I'm out of ideas at this point.

 

[encise]

Pull off that 8-pin as it may be a 2x4-pin. If so connect that to the 4-pin and use a 6+2 for the 8-pin.

I just found a 2x4 pin connector, i connect the 8 pin in PSU and the other side wich is 4+4-pin in the mobo ( i connect the first 4 pin cable in the 4-pin connector on mobo , and left the other one ( 4-pin ) as is )
Here where i connect the 8pin in PSU:

And i tried to overclock still didn't work

If it's still not able to do a stable 5ghz overclock after this connection I'm out of ideas at this point.

Np, Thank you so much.