Question Monitor not getting signal after maintenance?

[ais0]

Hello, I have an older rig that I built in 2017 for school work (lots of 3D modeling, rendering, photo editing, & animation, etc.) I opened it up the other night with the intention to clean off and replace the thermal paste on the chip. I first wiped the old paste with a microfiber cloth and then proceeded to remove the rest with some cotton swabs dipped in rubbing alcohol. As I was putting the whole rig back together, I wiped the surface of my GPU since it looked very dusty and icky with my microfiber cloth and using compressed air to dust off crevices, and wiped my computer case as well.

I put everything back together afterwards and then powered it on. My monitor would start up but it would just give me "No signal detected". The case fans and CPU fans run, GPU LED lights turn on, fans don't ( but they're set to only run when needed ), RAM sticks light up rgb but MoBo's own LED is not on, Mobo debug code screen is on and shows a code "60" (need to double check).



What I've tried:

Unplug and re-plug connections - same issue persists

Tested monitor with laptop as a 2nd screen - works fine





Specs:

CPU: Intel Core i9-7920X X-Series Processor 12 Cores up to 4.3 GHz Turbo Unlocked LGA2066 X299 Series 140W

CPU Cooler: Noctua NH-D15

MoBo: Gigabyte Designer EX x299

GPU: EVGA GeForce GTX 1080 Ti FTW3 Gaming, 11GB GDDR5X, iCX Technology - 9 Thermal Sensors & RGB LED G/P/M, 3X Async Fan Control, Optimized Airflow Design Graphics Card

RAM: 64Gb total (G.Skill TridentZ 8Gb x 4, G.Skill TridentZ 16Gb x 2)

SSD: Samsung 960 EVO Series - 500GB NVMe - M.2 Internal SSD

HD:

1. WD Black 2TB Performance Desktop Hard Disk Drive - 7200 RPM SATA 6 Gb/s 64MB Cache 3.5 Inch
2. Seagate BarraCuda 4TB Internal Hard Drive HDD - 3.5 Inch Sata 6 Gb/s 5400 RPM 256MB Cache

Case: Phanteks Evolv X ATX Mid Tower Case

PSU: EVGA 750 B3 750 W 80+ Bronze Certified Fully Modular ATX Power Supply



Any suggestions will be much appreciated!

 

[Lutfij]

Welcome to the forums, newcomer!

PSU: EVGA 750 B3 750 W 80+ Bronze Certified Fully Modular ATX Power Supply
How old is the PSU in your build?

Did you try and take the GPU over to another platform to see if the GPU outputs display? Likewise drop in a donor discrete GPU onto the PCIe x16 slot and see if the issue persists.

 

[ais0]

Welcome to the forums, newcomer!

PSU: EVGA 750 B3 750 W 80+ Bronze Certified Fully Modular ATX Power Supply
How old is the PSU in your build?

Did you try and take the GPU over to another platform to see if the GPU outputs display? Likewise drop in a donor discrete GPU onto the PCIe x16 slot and see if the issue persists.

Thank you!


The PSU was bought new when I built the PC so it's about 7 years old. You think it may be a power load issue? Because the PC was functioning perfectly with this PSU before I went through this whole maintenance.

To another platform like another PC build? I don't have another rig to test the GPU with unfortunately.

I am contemplating buying a new GPU to put in to see if that's the issue and just return it if that new GPU doesn't fix the issue.

Could this be a motherboard issue? Or do you think this could only be GPU related?

 

[Lutfij]

Donor platform would be a friend or neighbor, not a second computer under your wing. You could also check and recheck all connections to all components for anything that might've been loose. You could also drop the GPU to another PCIe slot and see if that changes your predicament.

RAM: 64Gb total (G.Skill TridentZ 8Gb x 4, G.Skill TridentZ 16Gb x 2)
I'd advise on working with one ram kit, as opposed to two and see if that changes the issue