Z390 Designare stops showing HDMI after modifying bios per recommendations?

I have tried to change my bios settings per recommendation for Z390 Designare motherboard (technolli guide). But every time I change BIOS and it restarts, I lose HDMI and am no longer able to see anything on monitor no matter how many times I restart. I am also not able to enter bios anymore?

Does anyone know what could be happening? I cannot figure out what is going on or what could possibly be causing this.

CPU: Intel i9 9900k

Graphics Card: Gigabyte Radeon Rx 5700 Xt (changed from Vega 56 after last post) Motherboard: Gigabyte Z390 Designare

Power Supply: Thermaltake smart 500w 80+ White certified PSU

SSD: Sabrent Rocket Q 1TB NVMe PCIE m.2 2280 SSD

Memory: G.Skill 32 gb ripjaws v series

WiFi & BT: Fanvi adapter

Case: NZXT h510

CPU Fan: coolmaster 240

Here’s a photo of the inside:

https://imgur.com/gallery/esqGoot

The computer equipment does seem to shut off and on 2-3 times when I first power it on, but then is fine after?

submitted by /u/Spenro
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