Z170 Extreme4 with Dr. Debug 00 and boot loop

Hello all,

I build up a system with a i5-6600K and 16GB RAM from G.Skill (F4-2400C15D-16GNT) which should supported as mentioned in the Asrock

Unfortunately the system won't power up correctly. It powers up and runs for a 2-3 seconds then shuts down and powers back up again. The CPU fans doesn't spins! Dr. Debug is givin a 00 which is related to Problems with the CPU. I got no video signal either from graphic card or from the onboard card.

I tried also to change the two RAM bar to other slots from the channel. Also with only one RAM bar. The PSU delivers a maximum power of 500W which should be enough for the system set up! I cannot give any information about the bios version due to the lack that I never saw it on the screen. I also check the CPU pins! No pin is bent! This is also the second mainboard that I've test. With the first one from another manufacturer had also the same booting loop issue!

So my question now! Is this a problem which comes from the CPU or from the memory? What should be changed? The CPU or the memory?

Thanks and best regards

md5sum

Edited by md5sum - 23 Jan 2016 at 2:33am

Also, as it's a common oversight, have you connected the 8-pin power leading from the PSU to the 8-pin CPU Power socket in the upper left corner of the motherboard?

Do any other fans you have in the PC case run when you try to start the PC?

There is nothing I recall about BIOS version 1.60 having a major issue that would stop the CPU from working.

If you used the same PSU with both boards, and both did not start, I would suspect the PSU first. The only way to really test if it is bad or not is to try another PSU with the PC.

Have you used this 500W PSU in the past? Is it new? What model is it?

If the CPU fan does not run at all, that would make me suspicious about the +12V supply from the PSU. That would also explain why the CPU does not work, it is not getting any power, apparently. If any other fans in that PC do not start, that would also indicate possibly no 12V power to the board.

md5sum wrote: The PSU is the oldest part in my rig. It's a beQuiet E5 500 and were used in the past with two other set ups on AMD boards.

Why oh why does this occur here so many times? Folks, the PSU is THE most important part in your computer and yet seemingly the last part to be upgraded/addressed.

Borrow a PSU and re-test please. Or take it to a shop that may have a bench test PSU that they can hook up to test.

Will it start when removed from the case and built up on top of the BARE box the MB came in?

Memory in slots A2 and B2 when you do the above also. Those two slots are recommended by ASRock.

Wasn't Amazon doing a Drone delivery trial in New York NY ??