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What killed my i7-6900K?

Nutkins

Nutkins

Nutkins

Associate
Joined
19 Jan 2013
Posts
76
Hi there,

Sorry for the wall of text, but I want to try and add some background.

So I purchased a 6900K, brand new and sealed. Installed it yesterday and all was good. Put a light overclock on it (4GHz) and stressed it under load, which seemed stable at 1.2v for 30 minutes under AIDA64 and Intel Burn Test, though it did get quite warm.

This morning I decided to re-apply some new thermal paste (this stuff: https://www.overclockers.co.uk/ther...ance-thermal-paste-5.5g-1.5-ml-th-001-tg.html). Booted up, temps seemed fine at idle and under load.

After this, I started playing a game of Rocket League. I think I got an about an hour in before my PC unexpectedly shutdown. I tried powering it on again but the system would boot up, fans spin up and then it would shut off again.

At this point I tried resetting the CMOS, after this the system wouldn't even power up. Tried a different a power supply, still nothing. After all this, I pulled the board out of the case and placed it on wooden surface, hooked up the power supply to it and it actually booted. Only this time, my motherboard (X99 Strix) was showing the debug code "00". I grabbed one of my 6800Ks, and popped that in. This time it posted and booted into Windows.

I've filed a return request with the retailer (which I won't name) but I want to know, how could my 6900K have died, did my motherboard kill it?

The rest of the system: 16GB DDR4 3000MHz, Strix 1080Ti, Corsair HX1000i

Might be worth adding that the BIOS version I'm using is 1504
 
Last edited:
No, still on the one before the latest, where it's been running on since I bought the board. It's seated a 6800K fine for 4months. The version number is 1504

Edit: My 6800K even had to take more vcore for 4GHz (seems my 6800K lost hard in the lottery)
 
Wasn't aware of this, I'll have a look and see if I need to change anything. Even so, it wouldn't explain why my system was working fine yesterday without any change
 
So I tried the 6900K with the latest bios and still have the same issue. Again, 6800k in the system and it's fine.

Underside of the cpu is spotless, no paste. I even looked for bent pins on the socket but it all looks fine to my eye.

I'm at a loss. The retailer which I probably can't name, is giving me the option of returning the board, but I'm not too convinced the board is an issue if it works with my 6800k.
 
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