White Stuff on PCI-E X16

[diegodanger151]

Hi there guys, first post here!
I need some help pls!

My pc has been shutting down recently while playing demanding games when I load or when playing OW for like 5min.

Today I was doing some troubleshooting and found my PCIE lane with some weird white stuff on it... No idea what’s that and if it’s damaged or has damaged anything at all !?

Is the lane dead for use? Should I use fthe 2nd one? Clean and plug gpu ? Men what a drag.

IMAGE:
https://m.imgur.com/N5mADLK
https://m.imgur.com/fdoexAm

I tried to clean it a little bit but not really successful with the resources I have now.

Specs:

ASUS Maximus Hero VII
i7 4790k (4.0 ghz (this moment) )
16gb DDR3 1333Mhz (1600Mhz)

PSU : Coolermaster 600w 80plus
(Has been working fine, rails etc)

GPU: RX580 8Gb MSI GAMING X
(No residue found in gpu lane)

1x SSD Hyper X 160Gb
1x HDD Seagate 1TB Hybrid

Enermax water cooling on cpu
x2-120mm fans on it +3-120mm fans on case.

Thanks already and any questions I’ll answer happily!

 

[getochkn]

Possible water droplets from the water cooling loop? Looks like when water and electronic meet.

 

[diegodanger151]

Possible water droplets from the water cooling loop? Looks like when water and electronic meet.

Hmm might be, but it's unlikely to hit it over there (by the way the pump and stuff are placed)
I'll take it under consideration and observe it. Thanks!

 

[CountMike]

Heat transfer paste ?