Hi,I installed my new Asus Prime B550M-A Wifi II . [URL='https://www.amazon.ca/dp/B07KXMWHBY?ref=ppx_yo2ov_dt_b_fed_asin_title']Patriot Viper Steel DDR4 16GB[/URL] and new [URL='https://www.amazon.ca/dp/B09VCJ171S?ref=ppx_yo2ov_dt_b_fed_asin_title']AMD Ryzen 5 5500[/URL] > Booting PC gives me black screen,saying no Signal . my 2 DVD Drives have power,the Harddrive seems to "turn" . on the MoBo i see yellow lights flashing slowly . But PC does not start ,even pushing Delete etc.during bootup. my present asrock mobo has a 4 pin power connector plug ,so does the PSU. The new mobo has a 8 pin power connector plug,could this be the culprit ? What can be the problem ? Any help would be greatly appreciated . regards dhm75