Z170 Pro4 successful BIOS update, but black screen

I downloaded the latest 2.50 bios for the z170 pro4, put it in a USB fat32, went to the bios update, and it all went fine, at then it said "successful, reboot press enter", and I did, then I got a black screen. I have tried clearing CMOS with the jumper, and by taking the battery out, I took the nVidia card out, and used the builtin DVI output, and nothing, black screen still. Any ideas? I am thinking on getting a new bios chip from eBay, but is there anything else I can try doing? This seems very weird... why did it say it was successful and then black screen?

So I got it to boot by removing everything, and clearing CMOS, then putting everything back in with up to 3 memory sticks, but when I fill all the slots it doesn't want to boot, just a black screen. I tried each memory in the first slot, and they work, so somethign seems like it went wrong with the mobo. This update apparently addresses some memory compat issues, but it seems it screwed up omething related to the memory because all slots were working before the update. I did the update to see if it would fix the problems with Securom games and the skylake, but seems like I screwed up... Any ideas?

Edited by elclanrs - 02 Nov 2015 at 4:20am

elclanrs wrote: New update. I got the board to recognize all 4 slots now by setting the memory speed to 2133 manually. The memory I have (Crucial Ballistix Sport) runs at 2400mhz and 1.2v and according to Asrock's website it supports all 4 slots in dual channel. I tried raising the DRAM voltage to 1.25, and 1.3 but no luck with 2400. The builtin XMP profile does not work... I made some progress, but still, I'd like to run the ram at its stock speed. What else should I look into to get it working? Any other values I should try tweaking?

To expand on this, what are safe voltages for DDR4 (taken from overclock.net)



Edited by peroni - 17 Jan 2016 at 10:21pm