Help with Troubleshooting

datonyb wrote: hello i am an engineer but not for asrock this layout is EXACTLY as i told you on the 23rd november

No disrespect intended. I wanted to confirm that this non-intuitive manner of connecting the cables was gospel from Asrock. You would agree that the manual describing the cable placement for the front panel is non-intuitive as described on pg. 29?

Here is the official response from Asrock Technical support on how the front panel cables should be connected to this motherboard.

Why they did it this way.... only an engineer's mind would know.

Interestingly I am having the same trouble with an AB350 Gaming-ITX/ac that was delivered today (December 1st, 2017) as well.

AB350 Gaming-ITX/ac
AMD A8-9600 APU (integrated Bristol Ridge GPU) (temporary until Raven Ridge (Zen) APU's are released)
GeIL EVO Potenza GPR48GB2400C16DC  DDR2400

The CPU arrived with several bent pins and some obvious carton damage (plastic packaging was cracked). I straightened them and proceeded with install anyway hoping for the best.

CPU (with integrated GPU), motherboard, memory, and PSU only -- nothing else -- and no POST or beeping (added a working piezoelectric speaker for testing).

Tested PSU in other computer fine.
Used known working PSU with same behavior.
Tested memory in other (non-AMD) computer fine.
Used known working DDR4 with same behavior.
Tested memory one-by-one, swapping, etc.
Reset CMOS.

I can hear the CPU fan noticeably alternating between a high RPM and low RPM alternating about every 1.5 seconds -- no beeping at all from piezoelectric internal speaker (installed). When I hold down the reset switch the CPU fan spins up to maximum speed until I release it.

Seemingly issue is CPU or motherboard related. I have no way to test them individually. All I know is that the CPU arrived with bent pins (not the first time I have had to straighten) and internal packaging damage and the motherboard doesn't POST and more importantly doesn't beep at all (with a working piezoelectric speaker installed).

I requested replacement RMA from Newegg for both CPU and motherboard.

Funny we are both having a very similar issue with this new board on the same day. Best of luck to you.

wussery, the only thing I can think of is to remove everything but the CPU and see if it powers up and seems to keep running, ie, does not power cycle.  Then add back in the video card, then memory.  Are all these parts the ones used before?  Have any of them been tested in another system?  Good luck, John.

wussery, if you can boot into BIOS (F2), please hit F9, then F10 and see if it will boot.  If you cannot, please do a Clear CMOS and try booting.  Good luck and enjoy, John.