Why is it not displaying the image on the screen?

Question

Iron

Hello!
I have a problem with my mini pc. The image is not displayed on the monitor. (I tried both hdmi and mini-display-port). After resetting the BIOS, nothing has changed.
Characteristics:
gigabyte gb-bsi7ht-6500
It is necessary to install windows 7, and there are also certain difficulties. On board, all usb 3.0 and the mouse and keyboard do not work. How to connect them?
But more interested in why does not display the image.
Thanks in advance for your reply.

Answer 1

банально от выхода из строя биоса, видяхи итд пробовать вставить внешнюю видяху

Answer 2

This is a barebone platform - Case + Motherboard + Processor. To make it work, you need to put memory and a hard drive or (and) SSD.
Without memory, there will be no picture on the screen. If there is only one memory stick and it is inserted in the wrong slot, there may not be a picture again.
If there is no picture - the problem is with the motherboard or memory. Take it all back to where you bought it and ask for a replacement.
The issue with Win7 is solved by preparing a bootable installation flash drive with integrated USB 3 drivers, but this is a completely different story.