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Stain and mark on my GPU, system works fine except when i try to install Windows 10 1903 build. Could be a relationship between these ?

pettore84

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Joined
Nov 13, 2019
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Hi guys,
i'll try to be as short as possible but i really need your expert advice.
Yesterday i got my new m2 ssd so i took GPU (zotac 1050ti mini) apart to place drive and i noticed a strange dark mark in the bottom-side PCB: a dark spot in the top right corner, just near the DVI (never used it, only HDMI) solderings https://ibb.co/4VYYdHQ
Also noticed that the inward side (facing toward the mobo) of the bracket was brown https://ibb.co/9nVqWLX , furthermore a back pin of the PCIE connection was dark too, like burnt or oxidated https://ibb.co/WFF1rLj
Anyway no burnt-smell i perceived, sniffing on them. I cleaned the marks with 97% isopropyl and now all the the stain in the corner has vanished https://ibb.co/sw4Px78 but this hasn't worked for the "black" (looks like a little scratch) pin of PCIE
Some details:
I built my pc in '18 july, it works fine, never spilled anything inside it, no smell have ever come out from my case.
All my temps are good and my case is well ventilated: the only games i play are point&click adventures so my GPU temp has never got over 50 °C.
I took a look into the motherboard near the PCIe and i couldn't find any similar marks. I also can't wonder when these dark stains were born; this one year old picture https://ibb.co/P5W6L13 seems showing the same spot in the corner and maybe i didn't noticed it 'til now.
For about 5 months my PC has been fed by my 5 years old Thermaltake Berlin (80 plus white label Sirtec OEM and not the current CWT you could find now).

My SPECS are:
-H370 Aorus Gaming 3 wifi (latest BIOS F13)
-Intel core i5 8600
-32GB (4x8GB) Crucial Ballistix Sport PC4-19200
-Cooler Noctua NH-U12S (dual NF-F12 fans)
-GPU GTX 1050 Ti Zotac ZT-P10510A-10L (drivers updated)
-SSD Crucial MX500 250 GB
-HD Western Digital Blue 2TB
-HD Western Digital Red 3TB
-M2 SSD XPG SX2800 pro 512GB
-PSU Seasonic focus+ gold 650
-case: cooler master N300
-fans: NF-A14 front intake, 2xNF-S12A noctua back and top exhaust
-Win 10 pro 1809

Now a real problem that i can't figure out if it's related to CPU, GPU or motherboard:
my PC has always worked fine (no BSOD, freeze neither black screen) with win10 1809 (or previous) build.
Everytime i try to install 1903 my screen turns black installing the nvidia drivers (tried lot of versions that run very well in 1809 build). Nevertheless after "no signal" event on my LCD tv the system keeps on working for several minutes: you can hear the sounds of some open application. I have to force reset by button but when OS loads, the screen turns black again after few seconds i get into win10 desktop.
Here's a video about the whole event:
(sorry, my windows is in italian language).
I tried lot of driver versions, did all the available windows updates, clean installations of win10 waiting and hoping next build updates could solve the problem but nothing worked.
The only thing i can do is to leave the self-installing drivers by windows (dated 2017).

So what do you think:
- Could the spot on the corner really be some burnt or maybe flux or manufacturing residuals? If you think could be a burnt, it looks very strange i've got no physical sign or pc issue.
- Could the pin with this sort of dark scratch (you can see it only looking from a certain visual angle) be a problem for my PC? Expecially i'm worried about motherboard and PCIe slot.
- Is it possible that issues above are related with black screen error with 1903 build?

Thank you very much for your time
 
Joined
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Location
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1. Something happened ... what it did is unknown

2. Take out the card and connect monitor to MoBo and use IGP, make sure BIOS set accordingly for IGP and new SSD

3. Format the SSD

4. Disconnect Ethernet cable or diaable WiFi / turn of router whatever to prevent internet conenction

5. Install Windows.

6. Disable OS ability to install HW Drivers

7. Install all hardware component drivers from original media

8. Restore networking / internet access ability

9. Run Windoze Update

10. Install latest hardware drivers.

11. Rerun Windoze Update

12. Do system backup.

13. Shut down and install GFX card. move monitor cable to card, restart

14. Install nVidia driver

15. If last step fails ... uninstall nVidia drivers, swap in a borrowed card and try again
 
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