AB350 ITX/AC & Ryzen 2400g. No video, POST, etc.

If there is a Raven Ridge BIOS version sticker on the BIOS chip and or board packaging, ASRock updated the BIOS. I have been assured this is the case by sources I trust. The only possible way that anyone can receive a board with a Raven Ridge Ready sticker on the box when the board has not been updated is in the case of a mixup with a return at the retail outlet in which case the serial number on the box would not match the one on the board.

 

I have been scratching my head over this one too. 

I have heard some users simply powered on the machine and left it powered and returned to a post screen. It my be worth trying. I would use a DVI monitor with adapter cable and give it a shot (this combo works most of the time in case the issue is the display output mode). 

If after 30 mins being powered up there is still not post, let us know. It may help to attach a PC speaker to the system and test without memory to see if you get the no RAM beeps. Turning off the post beep (set by default to off) does not effect error beeps so you should get something. Given this is the second board, check the serial numbers and see if they are close, if they are then they may both be from a bad batch (box dropped in shipping for example). From what I have seen boards are generally shipped in batches of 10 so this is a possibility. 

Stree's suggestion of disconnecting the M.2 is also a good one. Remove everything that isn't needed for post. Problems like these are a real pain. We will help you through it.

Thanks for all your comments.   

I'm going to let it run for an hour just to see if anything pops up as Xaltar has mentioned.

Cheers,

OK, so here is what we know:

1) 2 Motherboards, same issue

2) 2 Kits of RAM tested, one of which is on the QVL

3) No PC Speaker activity (even with no RAM installed?)

Logically, the odds of 2 boards being dead or for some reason not what they claim to be is exceedingly low, particularly given the variance in serial numbers (not same batch).

It's time to go old school on this thing.

1) Set up one of the boards outside the case on it's product box

2) Install a single stick of RAM in the slot furthest from the CPU

3) Hook up your power supply being sure you have an 8pin CPU power lead hooked up to the board, not a PCIe 8pin.

4) Make sure your PC speaker is hooked up

Test

If there is no life then remove all RAM from the system. If there is a beep code let me know, if not then try the other board in the same way. If both boards provide no beep codes with no memory installed then you need to try another PSU. Regardless of BIOS version, if you have no RAM and there is a pin compatible CPU installed then you should get a beep code. Before the board even checks the CPU the RAM must be initiated so no RAM - beep code.

If you do remove the CPU, make sure you check for bent/missing pins. Missing pins will be obvious, a solder pad with a nub in the middle of it. Blank areas are just unused pins not missing ones. 

Let us know how that goes and please feel free to ask questions if you want clarification on any of the steps.

For the crashing, download the very latest installation media from MS and create a new install medium. 

Make sure you install with factory defaults in the UEFI (no XMP in particular)

Only have the OS drive installed during installation

Now we see what else is going on.