PC will power up but monitor showing no signal... (part new build)

[truewraith]

i went back to one of my pcs that i didn't get round to sorting and i put ssd in and got windows ready to install but it wont turn on proper via monitor, ive checked all the leads and everything and cant work it out why it still says no signal even tried another screen and still does same.

any advice on what to try would be amazing thanks

Gigabyte B450M DS3H mATX Motherboard for AMD AM4
Crucial Ballistix BL2K8G36C16U4B 3600 MHz, DDR4, DRAM, Desktop Gaming Memory Kit, 16GB (8GB x2), CL16, Black
CORSAIR TX550M Semi-Modular ATX PSU - 550 W
AMD Ryzen 3 3100 Processor OR it was 2600 but cant check yet
AMD RX570

 

[truewraith]

thanks i will try those things and i aint even got to the part of installing windows yet i have it on a usb stick ready but cant even get to a post screen, and only light i see on MB is orange i think

 

[truewraith]

Ignore me then, i thought you meant blackout during part of the boot/ install process.

Reseating as above best bet. Different cable, DP and HDMI i'd also try just to be sure.

yeah no worries thanks, i will try everything inc different cables and the hdmi is plugged into the gpu and the gpus fans are not on but the Sapphire light is lit on the side of the gpu card!

 

[truewraith]

nothing worked so far, but on the off chance does it matter about the fuse size in the plug as ive noticed some are various amps and not all 13amp fuses ! just checking everything incase i got leads mixed up

 

[truewraith]

its the 3100,

all fans are on except the gpu i did the cmos and still exact same tried loads of hdmi cables etc and ive never had this issue ever before

 

[truewraith]

if the 3100 did need a bios upgrade how would i even go about that?