Nevermind . One thing i can try to use 2400 ram with XMP profile but i have to buy it first as i'm using 2133 only

If you have 2133 now, you may be able to run it at 2400 if you loosen up timings (set all manually)

@ Lost_N_BIOS Humm 2400 would be help but i did't see any timings setting in overclocking menu. Any idea?

@jacky400 - It's there @ Advanced >> Overclocking Performance >> Memory >> >> DIMM profile (Set Custom, or XMP)
+ Memory Reference Clock (100 or 133 x Below Ratio = Memory speed)
+ Memory Ratio
+ QCLK Odd Ratio

Ohh, sorry, you said timing! Derp!!
You are correct, only timings in this BIOS are hidden in debug menu. So you will have to try Auto Timings with both custom and XMP and hope they are loose enough to run 2400, they may be OK
Or, I can make you BIOS with certain timings set if you want?
Or, you can use SPDtool tool or Taiphoon burner make custom SPD/XMP and flash it to your memory sticks

@ Lost_N_BIOS . it would be nice if can make the BIOS to adjust timing .

@jacky400 -It can only be directly changed in a BIOS Mod, I can't make the settings visible to you.
If you want me to make you a test BIOS to try 2400 with custom or XMP (you set those), I will make one with set timings and then you adjust rest. If you want to try that, what timings do you want set?
Please show me image of CPU-z SPD tab, with one of the memory sticks selected (mentioned this, in case it's blank, you may need to select memory slot)
https://www.cpuid.com/softwares/cpu-z.html << you can use "Setup" which is installer, or zip where you just run it from folder and it's not installed. And of course, you can pick a branded version there in the middle too if you want

@Lost_N_BIOS I have 2 8G DDR4-2133 in slot 1 and 2. Attached the screenshot and looks like no XMP profile.

I wonder if it is possible to change Memory Ratio from 8 to 9 (133 x9 which is 2400 speed) , but not too sure if current timing works and may not be able to boot up the system .

@jacky400 - CPU-z doesn't show the XMP profiles there, if present, because there is too many SPD profiles. There may not be any XMP profile, but lets check to be sure. What brand is this, actual Hynix or other brand name
Can you please run HWINFO64, close the CPU-z like window, and on the big window, hit report icon, then HTML or txt is fine, and then uncheck all boxes, and recheck memory only, that way it's just memory report.
Then send to me - DOWNLOAD HWINFO64 HERE

Also, staying at 2133 with tighter timings may = better anyway, you'd have to test both ways to confirm.
What is current speed/timing shown in CPU Memory Tab? Yes, you could try 133x9 or 100x12, I would think at 15-15-15 or 16-15-15 it should be OK at 2400, but yes, maybe could fail.
Since this is desktop board though, if that happens it should attempt a few times, then fail OC and load fail safe defaults, if not you can easily clear CMOS

@Lost_N_BIOS . Friend gave to me, Asus H170-P / G20CB / DP_MB Rev 1.02 .I have a small problem - Bios chip is damaged (no backup file off chip).
I have a programmer ,other chip , CAP file from asus website ,stikers on MB and case. Can You help me please.