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ASUS z170 Deluxe clocking problem?

post #1 of 4
Thread Starter 
See if any of you can understand this one.

ASUS z170 Deluxe running 6700K and TridentZ ram, AX860i PSU - Watercooled loop (GPU/CPU)

Any attempt to overclock fails, whether through BIOS, or using the 5-way software, although the latter does get the chip to 4200, but no more. Set multi in BIOS to anything, and anything up to 1.45v, system fails and shuts down immediately. XMP on or off, doesn't matter, same result. Temps never above 30c, according to BIOS. System will try booting Windows, and at loading just shuts off, then powers on, till I enter BIOS manually.

I was led to believe that Skylake mostly only required you to change 2 settings to get a mild overclock?, well not in this case. Not even a 4200 measly clock?

Now, I put the same chip in an MSI board, and I can get it to 4.8 with ease, although not stress tested, but it gets there, unlike the ASUS board, which can't even boot at 4.2??

Tried various different BIOS's, all same.

So I'm thinking it's the ASUS board?

Any ideas guys?
post #2 of 4
No helpful input from me, just thinking it's weird also!

You'd think the ASUS z170 deluxe board would be a nice overclocking platform, this review seems to back that up.
http://www.hardocp.com/article/2015/08/13/asus_z170_deluxe_lga_1151_motherboard_review/7#.V5lkHqJNruc

This review makes it sound fairly straight forward to OC a 6700K on this board, so maybe the board is faulty? Especially given your 4.8GHz POST and Boot to Windows.

I guess check all the power handling features are correct because it sounds like that might be related to the issue.
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Ol'Faithful
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post #3 of 4
Power handling features like disabling the ASUS EPU / TPU 5-way optimization stuff and ASUS overcurrent / surge protection right?
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post #4 of 4
Thread Starter 
Yup, all disabled.

Tested chip just to make sure, and it passed with flying colours.

WcDj9Dg.png


When sitting in BIOS, doing nothing, it will randomly power off, after a short period, if multiplier is changed. I notice also, at stock BIOS settings, it insists on giving the core voltage 1.344v on Auto. Setting core voltage to manual and fixing voltage to 1.35v, results in a mysterious ramp up to 1.4v+, and changing multiplier to anything above stock, will see the voltage ramp to dangerous levels of 1.5v+, regardless of what voltage I set manually??? All this with good cooling (just as well) and temps in the 20-30c range.
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