Question PLEASE HELP. All in one Pc not working

Mar 23, 2023
Hello. I have an Asus et2010pnt all-in-one computer. I wanted to clean it, so I opened it, disconnected all the components and cleaned it of dust with compressed air. when I put it back together and turned it on, it started saying no signal after turning it on and then showing a black screen. however, the hdd and the fan are spinning. i tried reinstall ram and reset CMOS but nothing Worked for me. Please help
Things i tried:
Reseating and checking the RAM
Making sure everything is secure and plugged in, no loose or not plugged in wires
Removing the CMOS for 1-5 minutes and then replacing
Specs: Processor: Intel® Atom™ Dual Core D510 1.66GHz
Chipset: NM10
Memory 4GB DDR2 800 (2 x 2GB)
Sshd: 1000 Gb SATAII 5400 rpm
Optical drive: Super Multi
Web camera: 1.3 Mpx
Graphics card: NVIDIA® ION2010™ 512MB VRAM
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