Need Help. 2nd Dead 1080 possibly

[BRiiTASH]

Ive just installed my newest 1080 that i purchased off eBay to replace one i had broke after dropping it and I cant get a display output from it. 

I mounted my EKFC 1080 waterblock to it and installed it into a temporary loop but my pc wont boot with the display port cable plugged into the back of it and keeps coming up with error code A2 and b6. 

When i plug the display port cable into the back of the other 1080, i get a video feed but when i go into the gpu settings of my bios, neither card is registering/detected.

My motherboard is an x99 e ws updated to the latest BIOS.

Im concerned this card might be dead but if that is the case i cant return it as i purchased it off eBay and the warranty doesnt transfer.

Im at my wits end with pc's if this is the 2nd 1080 to die on my whilst applying a waterblock and will probably end up throwing this pc into the bottom of a river along with myself if i cant get this fucking thing to work.

 

[BRiiTASH]

It just loaded up. Suicide Aborted.

[BRiiTASH]

New problem. PC is now rebooting intermitently and responding very slowly, almost as if there is a massive amount of input lag/latency errors. Things can never be simple.

[BRiiTASH]

GPUs are still undetected in BIOS. No idea as to why? Computer is registering both PCIE slots 1 and 3 as unoccuppied. Any help would be appreciated.

[Shreyas1]

4 minutes ago, BRiiTASH said:

GPUs are still undetected in BIOS. No idea as to why? Computer is registering both PCIE slots 1 and 3 as unoccuppied. Any help would be appreciated.

Reset bios settings to default?

[BRiiTASH]

1 hour ago, Shreyas1 said:

Reset bios settings to default?

Done. Theres no change however. Im worried this might impact performance or even the ability to run them in SLI but I have to do a clean Windows install first.

[VioDuskar]

as much as this hurts:

 

start from scratch, pull GPUs out, insert cheap GPU for an easy boot.

place stock coolers back on GPUs, 

insert (1) one 1080 into the top slot, check if it boots, then insert the same 1080 into the bottom slot to make sure your PCI-e slots are functioning properly.  

if the 1080 doesn't display, then try with the other 1080. if neither work use a cheap GPU. 

 

if both 1080s will work in both slots, then re-apply water-block and attempt each GPU one at a time, post results. 

[Shreyas1]

How about trying only one 1080 or use the stock coolers first instead to eliminate variables?

 

You could also use a cheaper graphics card like @VioDuskar stated

 

Make sure to test both 1080s in the top slot to see if one of them is bad

[BRiiTASH]

Ok to update both GPUs are registering in Device Manager, however are still both undetected in BIOS. Ive updated both GPU's to the latest driver and both idle around 22 -24'c. 

Ive encountered a new problem however where all of my games run aweful. Like, really aweful. Like I load PUBG up and get 14fps at the menu.

I used to get between 50-60fps on Medium at 4k but barely hit 10 fps now ingame.

What the actual fuck.