Asus Rog Z370-F mobo with Galax HOF II 4000mhz Dram problem

[Mr.KT]

Dear all, i got a Asus Rog Z370-F mobo (updated newest bios) + 8700K with Gskill 3000mhz x2 ram before, runs perfect with 3000mhz xmp. After I want to change a better Dram, so i bought Galax HOF II 4000mhz x2 (i knew that the mobo can support up to 4000mhz ram) (info about the ram http://www.galax.com/en/ram/hof-ram/galax-hof-ddr4-4000-16g-8gx2.html ). I installed in the mobo, and is fine running windows with dram default setting i.e. 2133mhz. When i try to select xmp settings 4000mhz, and other things are auto, saved and cannot restart the pc, shows "no signal" in the monitor and awhile it shows this screen (see attachment). Is there any Dram overclock expert can help and teach me how to fix this problem and overclock this dram to 4000mhz? thanks a lot

 

[Woomack]

There were some other users of this motherboard who couldn't pass 3866, even though it supposed to run at 4000.
Have you tried 2/4 memory slots or single stick in 2 or 4 slot ? Maybe higher IO/SA voltages ? More relaxed timings ? but these are relaxed already ... maybe set manually 4000 and disable XMP ?
No more ideas right now. It's always easier to advice something when I actually work on the motherboard.

 

[Mr.KT]

There were some other users of this motherboard who couldn't pass 3866, even though it supposed to run at 4000.
Have you tried 2/4 memory slots or single stick in 2 or 4 slot ? Maybe higher IO/SA voltages ? More relaxed timings ? but these are relaxed already ... maybe set manually 4000 and disable XMP ?
No more ideas right now. It's always easier to advice something when I actually work on the motherboard.

yes, i tried 2/4 memory slots, manually 4000mhz (disabled xmp) and changed to 3600mhz also show safe mode

 

[Woomack]

Looks like mobo can't make it. Maybe try 3600 15-15-15 or 16-16-16 1.35V as it should be as fast if not faster than the XMP profile.

 

[Mr.KT]

Looks like mobo can't make it. Maybe try 3600 15-15-15 or 16-16-16 1.35V as it should be as fast if not faster than the XMP profile.

there are 4 numbers, so what should i insert? (below is not my pc's bios, just for reference) thanks

 

[Woomack]

16, 16, 36, 2, everything else at auto
if you make it work then try
15, 15, 35, 2
when you make it work then try
15, 15, 35, 1

all at manual voltage 1.35V

 

[Mr.KT]

16, 16, 36, 2, everything else at auto
if you make it work then try
15, 15, 35, 2
when you make it work then try
15, 15, 35, 1

all at manual voltage 1.35V

Thanks mate, i tried few test
166, 16, 36, 2 is work with 3600mhz, but other combinations are failed. Can it go anymore further? =]

 

[Woomack]

can check:
3733 16-16-36, 17-17-38, 17-18-38, 16-18-37
3866 16-18-36, 17-17-38, 17-18-38
4000 19-19-38, 20-20-40, 21-21-42, 21-25-45 <-- this one maybe will run at manual settings but it's not guaranteed

I would also ask ASUS if they have any tips how to make it run on this motherboard or if they can provide any BIOS. Maybe beta version which helps in memory OC.
Usually these "cheaper" motherboards are tunned for higher compatibility and stability, not for high frequency. Manufacturers give users reason to pay premium for their top series.

 

[Mr.KT]

can check:
3733 16-16-36, 17-17-38, 17-18-38, 16-18-37
3866 16-18-36, 17-17-38, 17-18-38
4000 19-19-38, 20-20-40, 21-21-42, 21-25-45 <-- this one maybe will run at manual settings but it's not guaranteed

I would also ask ASUS if they have any tips how to make it run on this motherboard or if they can provide any BIOS. Maybe beta version which helps in memory OC.
Usually these "cheaper" motherboards are tunned for higher compatibility and stability, not for high frequency. Manufacturers give users reason to pay premium for their top series.

the dram voltage also stay in 1.35v?

 

[EarthDog]

Bart, has given you solid advice.

Since the gains from jumping to 4K RAM from where you are at is nill, I'd return the 4K sticks and use the 3K ones. Really, for gaming especially, there is little to no gains. This will also save you a chunk of cash. RAM isn't a bottleneck in most cases.