Asus Z170-D won't POST / static cpu_led, q-code 13 / worked flawlessly for 3 months

Hailhydrant

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Dec 28, 2015
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So my PC decided to give me a Christmas gift and didn't boot anymore for some reason. It gets stuck at qcode 13 (pre-memory cpu initialization) and static red cpu_led. It goes up to 19 (pre-memory pch initialization) upon pressing the magic MemOK! button:

https://streamable.com/x4vi

Now, what I tried:


  • ■ took out gfx, unplugged storage from psu, basically left only mobo/ram/cpu
    ■ cleared cmos
    ■ refitted ram in many different configurations (a2/b2, a1/b1, single sticks in all sockets)
    ■ checked cpu for bent pins (I've heard some people had problems with huge/heavy radiators on Skylakes)

I can't find any reasonable explanation now, because I've never even moved this PC since I built it. It wasn't extremely oc'd, just some basic idiotproof built-in Asus uefi option which boosted it up to 4,1GHz with xmp enabled for ram. Temperatures never really exceeded 50C on cpu and 60C on vrm/pch. I don't believe in power surge either, because I invested in platinum grade psu and if that's not enough there's also a CyberPower ups before it, bought specifically for an active pfc power supply.

The question is how do I even rma all that if I built the rig myself and bought the parts from different stores (remember that Skylake shortage in September? Yeah). I don't even know which parts are actually dead :/

My specs:
Intel 6600K, Asus Z170-D, 4x4GB G.Skill 2666, Dark Power Pro 11
 
Solution
Well really sounds like the motherboard being the issue. I do not think it has anything to do with the Cooler weight just decided to die.