ibraheem989

Let's see...
A raspberry pi
Power supply
LCD Screen
Storage
Some type of sensor if wanting the raspberry to start right as the box being opened, or atleast a microswitch
A way to hide all of those so it doesn't ruin aesthetic
 
Sounds around $120 atleast to me
 
 
Those china video gift boxes is most likely made using custom made board system, hence why they can make it really slim to be hidden behind the box lid.
And if let's say they took the base of the board from Pi / Arduino, they remove everything that they don't need to play video so they can keep the manufacturing cost low.
Probably using flex cable too so they can remove the HDMI port, and by that cutting down cost and height.
I wouldn't be surprised if they direct solder everything to cut down cost further.
They probably custom programmed in a sleep mode too, which IIRC raspberry pi can't.

A pi isn't great for that, it'll take 30 seconds to boot, will show a boot screen, etc... and along with a display, card, power supply... is going to be way more expensive than one of those purpose-made gift box video players.

The difficulty with a phone will be 1) to trigger it, 2) that its battery will probably be dead in a day unlike these things that can stay a reasonable amount of time in standby before they're opened.

-> Moved to Hobby Electronics

oh ic...
It really doesn't look like hardware failing, so it should be software...
For software I would ask is it happening in all video or certain video? if it is what's the refresh rate of video and your monitor?
You can get ur refresh rate info in nvidia control panel

It's actually very similar to intel, where Intel has B150, H170, Z170, B250, H270, Z270 and so on.
 
You can use just about any Ryzen CPU (1000, 2000 or 3000 series) with any of the Motherboard chipsets. (B350, X370, B450, X470, X570) The difference between The B and X series is the X series allows for multiple GPU's in SLI or crossfire. Both motherboards allow for CPU overclocking, although I see you said you do not want to CPU overclock.
It does not. It supports PCI-E GEn 4.0, but for gaming that's not a big feaure. In my opinion DDR5 support is not worth waiting for, as it's not expected to release until a year or two from now.
That CPU with the screwdriver is a ThreadRipper CPU, which is technically not a Ryzen CPU. It is similar to Intels Xeon CPU's which are usually know as Enthusiast, Worksation or Server CPU's. 
 
The Ryzen CPU's are easier to install than Intel (I've done both)
Intel:
AMD (Ryzen)
They both use a lever / arm to secure the CPU to the socket, but Ryzen has Pins on the CPU, so the CPU is held without an overhead retention plate like on the Intel boards.

What budget/country for the rest of the PC? 

You're going to want an ITX system for something really compact, and I don't think it's worth selling your 1080ti even if you only have a 1080p 60hz display. The Fractal Core 500 is the case to look for since it supports longer GPUs and taller CPU coolers.

Ryzen has the best value CPUs atm, but I don't think any B450 ITX boards support the 3000 series out of the box, you need an older CPU to flash the bios.
 
If MSI has a B450 ITX board it might be bios flashing built in.

I just had to do this