I removed the RAM sticks, and the computer does the exact same thing. That tells me that the RAM sticks are not the problem, right?
I figure that the problem lies, in the order of probability, in
(3) CPU fan
The RMA process is not helpful. Seasonic charges shipping and a $25 penalty if it they determine that the PSU is not defective. ASRock says on their website that they won't even RMA to consumer.
It seems the only option is to buy an inexpensive PSU and another Asrock motherboard and use them to determine where the problem lies. And then RMA/return/pay shipping and restocking fees up the wazoo.
If anyone has a better suggestion please let me know.
how many hdd you got plugged in? i had a weird one where i had a sata2 and sata3 plugged in sata3 ports and the damn thing kept on cycling like yours is. moved the sata 2 to a sata 2 port and it worked fine. - did this til i updated the bios (which required the pc to work first)