Z170 Extrme 6+ Boot code 00

If you clear the UEFI/BIOS, via the jumper or the button on the board's IO panel (BOTH of course done with power removed from the PC), do you still get the 00 POST code from Dr. Debug?

POST code 00 is considered a major CPU error, meaning it cannot start. What are you using for a CPU cooler? Sometimes an over-tightened CPU cooler can  cause problems, since that can move the socket pins off the connection points on the CPU.

After a UEFI/BIOS clear, the POST process is likely running a memory test and possibly memory training. If you watched the POST codes while that happened, you might be able to tell what POST process is taking up time.

I've never seen this situation on any of my ASRock boards, including my Z170 Extreme7+.

Personally, what I would check if I were you would be:

1. Replace the "CMOS" battery. The NVRAM is no longer a CMOS chip, but the name remains. A flaky battery can cause all sorts of weird things. Have you noticed your time/clock in Windows being wrong? I had to replace the battery in my new Z170 Extreme7+ board. Mother board manufactures use thousands of them, and bad ones that fail prematurely happen.
2. Remove the CPU cooler and CPU, and check the pins in the CPU socket. Skylake processors have a thinner substrate/circuit board than previous processor generations, so is more likely to bend or warp under excessive or uneven pressure.
3. While you have the original battery out of the board, leave it out for a long time, over night if possible. Also move the Clr CMOS jumper to the Clear position and leave it there until you put the battery back in.
4. Actually, I would check if the Clr CMOS jumper is in the correct position. Or check if a cable is pressing on the Reset switch on the board.
5. If you have another PSU, I would try that too.

Wardog has patiently tried to get you to understand the UEFI/BIOS recovery procedure, which is a manual procedure, not automatic. But since you cannot get into the UEFI UI now, you cannot do it.

Your goal now is to get the PC to POST and get into the UEFI UI. If the 'A' UEFI won't start the PC, hopefully the 'B' will, and if that works, immediately run the Secure Backup UEFI procedure from the UEFI Tools page. You must also physically switch back to the main UEFI with the switch on the board after the Backup procedure is complete.

If all else fails, a TWO new firmware chips may be needed, since both seem to have a problem.

Hmm... so if you select the Backup does that auto restore to the Active, or can you run the B firmware as active? Honestly this has always confused me a bit since ASRock firmware seems a bit... different than anything else I have seen in the industry.

Meh, at this point, seeings the backup and main are both acting up I'd contact ASRock Tech Support, tell them the happenings there, and politely request a replacement BIOS chip be sent to you. It may end up costing you all of $5.00, but hey ....

Below are the US contacts I'm aware of.

Support Phone: 1-909-590-8308
Support Email: support@asrockamerica.com
Tech Support E-Mail Request Form


Edited to correct linkage



Edited by wardog - 15 Nov 2015 at 9:25am

I don't know if this is yet possible where you find yourself at now but ..........

See pg23 of your manual. It instructs how to "recover' the A Main BIOS via backing it up from the B Reserve/Backup BIOS.

Odd. Does your system have a PSU? I don't see one listed.


Edited by wardog - 15 Nov 2015 at 9:31am