Help! Maximus VI Hero will Not overclock - Bad board or CPU

[snowbro]

I had a professional build my new system with the 1150 Maximus VI Hero MB, I5-4670k, H100i, GTX 780 TI, AX 860 etc..

The computer runs great, cpu idles around 26c, Max temp 50c. Played ARMA 3 for hours on ultra 1440p no problem. However.. having a H100i water cooler & 4670K cpu I planned on overclocking like I had done on 6 other i5/i7's I have had the last 6 years. Never had a problem.

It seriously WILL NOT take any overclock on the multipliers over stock. If I do even just 35x with or without stock voltage, it will not boot. One thing that is weird, is initially I was going to try it at 44 multiplier then set the cpu cache to 42-44, but when I enter in anything and hit enter in the cache, it automatically puts itself down in the low 30's? So maybe this is why it wont overclock? Its like its not a K model. What the heck? I had a local shop look at it for about 12 hours and they cant figure out what is wrong. Is the Motherboard or CPU bad? I need to know what to RMA... : /

- Oh ya: I had given up and tried the AI III suite auto overclock, the very second it started and tried a minor OC. The whole computer crashed hard and went to the (WHEA_Uncorrectable_error) bluescreen. It took the computer 15min to recover and it corrupted 80% of my data on my SSD.

[Raja]

muellerdillon wrote:
I would RMA both the MOBO and CPU if possible, start with a clean slate:), and hopefully the new one will overclock and hopefully it will OC well, they have potential when you get a good batch, got mine stable @ 1.13v for 4.2ghz, 1.2v for 4.4ghz, and 1.28v for 4.6ghz, and all the temps never go over 75c at full load at 4.6ghz on an H80i, so you should be able to get some potential. Biggest complaint about Haswell though, IMO they are voltage whores, the voltage jumps i had to make in order to be stable aren't satisfying.

Yep, and there are samples out there that need more voltage at 4.2GHz than yours does at 4.6GHz...

[muellerdillon]

Raja@ASUS wrote:
Yep, and there are samples out there that need more voltage at 4.2GHz than yours does at 4.6GHz...

Unfortunately...., I got lucky, there isn't much else to it. Silicone Lottery.

[Antronman]

I'm guessing you have the money to buy this CPU: LINK

Buy one, and test it with the mobo. If it still doesn't work, RMA the mobo. If it does, RMA the CPU (the other one, not the crappy celeron.)

[HiVizMan]

RMA the CPU it seems defective.

[snowbro]

Ya the CPU thinks it's a non K version or something haha.