With some down time and no cash i decided to find a way to watercool my Evga GTX 1080 Classified. After searching for waht seemed like forever i found Alphacool Eiswolf GPX-Pro on Clearance for$79.99 it comes with 120mm radiator 2 fans,waterblock w internal pump and full backing plate with the ability to expand not a throw away AIO. Really hoping its not to good to be true. So if everyone can cross thier fingers for me it would greatly appreciated. This kit was specific listing my #6386 so i am hoping for good results and to squeeze some more life out of my 3 year old Classified

Well i Really thought i did my homework. Not so Lucky. Finally found 90% Alcohol. Read the instructions, watched tons of youtube videos read all the stuff i could find on the wonderful Evga community. Performed a leak test,verified operation bleed air from system. assembled graphics card with waterblock. System fired up no issues. too good to be true. The PUMP died after 5 minutes of running. Completely at a loss.  Ocool logo lights up,radiator full to the brim slight hum on pump cover but no kind of flow. 

Thank you for the suggestion. It appears if you snug the cooler screws it stops the pump from working. Still trying to figure that one out. So finally got the pump working while attached to the graphics card. in the computer running No leaks (). This thing is worse the my air cooler. i have checked thermal paste,thermal pads, to my knowledge no air in system ,removed the ugly quick disconects shortened hoses by 6 inch for the custom look and just turning boost lock on turns my gpu upto 75c full fans, full pump, throttling my gpu as temps go up. i started at 2038 mhz 31c
just having precision x1 and flow control open im now at 1936 mhz 77c.
Intake temp 20.6c exhaust 23.8c
Really shocked i got this kinda cheap but i seen these sell for $200 plus i just could never find my model.Seen a few reviews were it performed fairly well thought it would be a good to way to start a custom loop So far 2 days and no email responses from manufacture or store that sold it to me. at this point ill give it back just for some thermal paste and pads to put my stock cooler back on. the stock cooler my card came with never went over 61c and i never ran full fan just 70% at 60c. So far trying to watercool this GPU has really sucked. So much for a custom PCB

Sorry it didn't work out for you. A single 120mm rad is on the small side but I wouldn't expect the air cooler to be that much better. Might be an issue with fluid levels in that CLC which could explain the odd pump issues.
 
Running a 1080 Ti @ 2050Mhz and it averages 48-51c right now under load with the fans set ultra-low. Using a PA140.3 (triple 140mm rad), single loop with the GPU+CPU. Surface area does matter. 

At that point, I'd highly recommend just sticking to quality air coolers like Noctua, or going full DIY watercooling. I've never been a fan of AIO liquid coolers, especially those that don't allow adding extra fluids to replace what naturally evaporates through the tubing over time. 
 
Knock on wood I've been using the same Laing D5 pump since 2007, they are one of the best pumps and last longer than the DDC models. A two-pump loop can cause it's own issues, the redundancy isn't needed. The newer model D5's are PWM sensor equipped and you can configure a motherboard to either control it like a fan, or set up a speed alert to warn you if it stops working. 

Where exactly are these screws? Got a photo?

In the manual it shows 2 different types of screw heads and lengths were the kit has one type of screw head with two different lengths. So i think the screw are short because they do not go flush on the backing plate

 
3 pin fan header. Designed for 7,9,12 volts. The store i purchased it from gave me a brand new unit and upon receiving it, it was clear the first one was in rough shape,but the catch is both units had the incorrect hardware from the factory.
So in order to make it work i have to find the proper screws on my own. For some reason the pumps Rpm can be lowered and or stopped buy the pressure from the backing plate. I will be going to external pump w Resevoir and gutting this pump and using it just for the block in the future.... But after seeing my gpu at full power at 40c i am hooked on watercooling my GPU. Plus its been keeping me busy while stock at home
 
 
If i had another choice for a gpu waterblock i would use it but at this point i have to use what i have. I will be the first to say i know nothing about watercooling but i can tell you guys if you need watercooling stuff FrozenCpu is awesome. The company that made the product told me to basically go screw quoting product was end of life and them being in Germany and me in the US they only warranty products purchased from them not their dealers here in the US
 

Ok after driving the guys nuts at frozen cpu,I managed to find some EK screws that should do the job. The funny part is as I am sitting here putting the new kit together I realized the backing plate on the first kit was completely flat where it sat on the back of the gpu board,but the new kit has a backing plate that is machined so screws and capacitors dont make contact. So I am feeling pretty good that this kit will do the job . Finally done bleeding air from system and can actually hear and feel water flow. I already have a solo pump and a 240mm radiator on the way so I can expand .