ok, this is the third asrock mobo. i have had 2 x370's and 1 b350 asrock boards. and non have worked. i have 2 ryzen cpu's. i have tried putting ram in a1, a2, b1 and b2. and nothing happens. bios does not post to screen and mobo flashes a red light. i have used jumpers to clear cmos and after i clear cmos the light on mobo will turn green for a second then returns to flashing red. i have monitor plugged directly into graphics card (i know graphics card works cause i have tried it in a different computer). i also have different sticks of ram from a different company, just in case ram is bad. but either way, computer does not post bios or boots up and board just flashes red. i took it to a computer store for exact same reason before (the computer store determined it was either bad mobo or cpu) and i got a second 1800x from amazon as a result to rule out bad cpu. so now i am stuck. i honestly don't know what to do. everything is plugged in correctly, mobo is not touching case, there is no grounding issues. i am completely stumped and baffled. is it just asrocks are selling bad boards? below is a video i made showing whats going on.
As I posted in said vid...
try pluggin in mouse n keyboard,I think thats it...sounds stupid,but had that same issue with a friends 8370 build,till I plugged those in.
I would attempt to get the system to POST with no RAM installed. Switch off the power and unplug the PSU before removing the RAM. Move the CMOS jumper to pins 2 and 3 for 10 seconds before moving it back, Plug in the PSU and switch on (Never try to power on the system with the CMOS jumper switched, you can short out the motherboard this way).. If you still get nothing, try the above procedure again but also removed the CMOS battery, Leave the battery removed and the jumper on pins 2,3 for 10 minutes. Replace the battery, and switch the jumper back to position 1,2 before plugging in the PSU and attempting a boot.
Let us know how that goes. Incidentally, have you tried a different PSU?
so, thanks for the help guys. it turns out it was a bad psu!! when i took it to those computer stores, they both assured me that they tested the psu!!! so i honestly didn't think it would be the psu if they said they tested it. i took their word for it!! so after losing more hair and balding faster by trying everything i could think of, swapping ram, thinking ram was bad. swapping cpu, 3 dif motherboards, turns out the entire time it was the psu!! i am on the pc right now!! i will post pics of it and show it on the ryzen build section soon. but for now, here is a vid of it finally booting up.
may be my bias but ive seen 2 bad corsair psu's 1 fried and smelt burnt in front of me so i tend to stay away from them now but my last system i had for 5 yrs had a evga G2 in it and worked flawless i plan on sticking with them for my business plus nice warranty