Question No display// Help needed

Jan 9, 2021
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Hey
So I just built a new pc and I’m not getting any display on my monitor.
It’s not my first time building I have built 1/2 before.
All fans light up, Cpu fan works, GPU fans work and light up and the Few leds on the motherboard light up.
Everything working as normal except for no display.
HDMI is in the graphics card
Cpu power is in,GPU power is in, RAM is in correct place, and the few cables such as the (Power switch,HDD Led cables ect) are in their correct place.
The only thing I can think of is I shorted out the motherboard.
I tried powering on the pc without motherboard standoffs and that prevented it from Turing on but when I installed them everything working fine.
But then again,the motherboard still lights up and I performed a successful bios update with the flashback feature built in to the motherboard.
I tried turning it on a few times and on my 3/4 attempt I got a some sort of signal for about a second. It was like a mouse cursor for about 1 second and that was it.
That’s the only display I have gotten at all.
There is a red debug light on “CPU” but the cpu is brand new with no bent pins so it should be working fine.

Any advice is GREATLY appreciated
Thanks