cancel
Showing results for 
Search instead for 
Did you mean: 

Intel Core i7 7700 & 7700K not working well on ASUS Z170 Motherboards - BIOS 2202

0m3ga
Level 7
I just received 2 processor from a guy at Intel, the first thing I do is to try it out on my motherboard to see how those processors work.

60634

The first thing I noticed that my Z170 TUF only recognize 8GB of 2133mhz ram, with XMP in the BIOS is turn off, and my motherboard won't be able to start with XMP on, when I change my CPU back to 6600K everything is back to normal, I try another CPU and motherboard and got the same result.

60635
60636

I can't change the VCORE, i can't turn on the XMP, the BIOS version is 2202 - the latest BIOS from ASUS website

My motherboard:

Maximus VIII Formula
Z170S Sabertooth
B150 Progaming D3

The ram i have used:

- ADATA XPG DDR4 2133 - 16GB
- HALL OF FAME DDR4 3600 - 32GB
- AVEXIR CORE DDR3 - 16GB
- Gskill Ripdraw DDR4 2400 - 32GB

60633

Still the same result, have ASUS got any idea about how to fix this problem because i have been told that ASUS already knew this 3 weeks ago? Thank you!
804 Views
25 REPLIES 25

Nate152 wrote:
Cool Menthol !

I hope you get it working soon, I'm as anxious to see your results as you are to overclock it. 🙂


frankly I'm at a loss

I've installed a 7600k just now

but for some reason I'm hard locked at a multiplier of 40
meanin, no matter the settings, and no matter how high the multiplier is, it always stay at 4Ghz
CPU-Z even shows me the multiplier range I changed it to
x 40 (8-50) for instance

its the most recent Bios

edit
for instance max boosting value for 1 core is 42, and when the CPU is not being pushed a lot with multithreading, it applies the 42 multiplier

if I try Asus test bench, with handbrake, it uses 40


so my guess is kaby lake needs a bit more work and support on the "old" Z170s?

Menthol
Level 14
When the board from the Realbench challenge arrives I'll already have the CPU

Peter2k
Level 7
0m3ga wrote:
I just received 2 processor from a guy at Intel, the first thing I do is to try it out on my motherboard to see how those processors work.

60634

The first thing I noticed that my Z170 TUF only recognize 8GB of 2133mhz ram, with XMP in the BIOS is turn off, and my motherboard won't be able to start with XMP on, when I change my CPU back to 6600K everything is back to normal, I try another CPU and motherboard and got the same result.

60635
60636

I can't change the VCORE, i can't turn on the XMP, the BIOS version is 2202 - the latest BIOS from ASUS website

My motherboard:

Maximus VIII Formula
Z170S Sabertooth
B150 Progaming D3

The ram i have used:

- ADATA XPG DDR4 2133 - 16GB
- HALL OF FAME DDR4 3600 - 32GB
- AVEXIR CORE DDR3 - 16GB
- Gskill Ripdraw DDR4 2400 - 32GB

60633

Still the same result, have ASUS got any idea about how to fix this problem because i have been told that ASUS already knew this 3 weeks ago? Thank you!




hoping for an answer as well

my Maximus VIII Formula works and I can use XMP, but I can't actually OC the CPU

and before anyone asks, yes its a K

I had a similar issue with a Maximus VIII Hero Alpha and a 7700K. I have G. Skill 3200Mhz RAM but the computer would not boot up if I enabled XMP and had the RAM higher than 2400Mhz, which is what Kaby Lake officially supports I think which is interesting. I could enable XMP as long as I kept it to 2400 or lower. This was using bios 2202. I noticed Asus has a beta bios 3101 they uploaded on 12/30 that has "stability improvements". After flashing Bios 3101 everything works as it should again though my PC froze at the desktop once so far which I do not like. I haven't tried overclocking the processor yet other than just enabling XMP and running the RAM at 3200. Doom and Dark Souls 3 both play very well so far.

Menthol
Level 14
Update the bios to the 3000 series and your Kabylake system will be fully functional, bios 3007 for my M8E did the trick

https://rog.asus.com/forum/showthread.php?89921-Kaby-Lake-5-0GHZ-and-above-Yes-it-does

Menthol wrote:
Update the bios to the 3000 series and your Kabylake system will be fully functional, bios 3007 for my M8E did the trick

https://rog.asus.com/forum/showthread.php?89921-Kaby-Lake-5-0GHZ-and-above-Yes-it-does



yeah that did the trick thx
with the 3101 UEFI

Is this really working for everyone? I have a 7700k being shipped yesterday. I have zero love for Asus's new motherboards and they say there is no plan for 270 deluxe. The Formula and code have 8 power phases. My vrm is 16 and it has a 20 phase for cpu. I want me keep my Deluxe but will be forced to go with Gigabyte's gaming 9 if it doesn't work.

Bios for mine is 3007 I'm going to flash now. It was re;eased in December so I figured that wouldn't work either since Kaby wasn't officially released until January.

Menthol
Level 14
You should be set with the new bios
Don't always make a judgment on the number of VRM, advances in design and quality have lowered the number needed and ASUS engineers know what their doing and KabyLake are more efficient than Skylake, Raja posted real info on this

Well everyone has a right to their opinion. An 8+2 Power Phase design on a 300-400$ motherboard is a joke to me. Even Gigabyte this year has brought quality well beyond any Asus z270 board I have seen yet. The pcb on the ROG Code which they said is filling the role of the Deluxe. No Deluxe for the z270 chipset, is garbage. You provide me with this link you are talking about explaining the huge technological advancement Asus has made in their products, I would like to read it. Asus makes decent stuff yes. But the quality of their products has gone down significantly. Their TUF series tho ugly, is the only thing I would consider for z270. My Deluxe I guarantee boasts a much better pcb than the Code.

Michael-i7 wrote:
An 8+2 Power Phase design on a 300-400$ motherboard is a joke to me.


Your Z170 Deluxe is a 8+2 design. The higher phase counts are achieved using doublers.


http://sinhardware.com/index.php/vrm-articles/82-vrm-guide
We will talk about the doubler a little as they are commonly used today in the phase wars. They basically are like a multiplexer which takes a single PWM signal and divides that signal into two, however it also reduces the maximum switching frequency by half...This can lead to much better thermal distribution which will decrease the stress on each phase. However there is another operation mode in which all the phases are pulsed on, and in that operation mode the doubled phases have half the load on them as they would if there were half the number of physical phases. Sometimes it is required to pulse all phases because of a huge current step, then you need all the power you can get as fast as you can get it, and turning on the phases is the best way to do this. Otherwise in normal modes of operation it is useful to use only a single phase at a time.


http://cxzoid.blogspot.com/2015/04/what-makes-good-vrm.html
So how many phases does your motherboard/GPU have? No more than 8.
8 is the largest number of phases that any PWM controller currently used in computers can produce. So how do we have VRMs with 10 12 14 16 20 24 and 32 phases? Doublers. Doublers are are specially ICs that take one PWM signal and split it into 2. In the process they cut switching frequency in half but they do give you more phases so you do get the extra current capability and get lower operating temps but don't gain anything in terms of voltage ripple suppression. Another trick motherboard manufactures use that I hate is putting stuff in parallel. There is a good way to do it where they put extra MOSFETS in one phase which basically creates a "super phase" if they are using high end MOSFETs but more often than not they double the number of inductors. This means that inexperienced buyers who count inductors to get phase counts can easily be fooled into thinking that a board has 8 phases when in reality it only has 4 but with each phase having 2 inductors. having 2 inductors on 1 phase is completely pointless. It does nothing that a single inductor couldn't do other than looking more complex than it is.


TL;DR Boards that tout more than 8 phases are probably using subpar componentry to decrease the load via doublers instead of using high end stuff and forgoing doubling.