@petersbc1402c As I mentioned, the RAM has profiles for different timings that might cause issues on boot - the Kingston RAM has 2 entries for 2400 MHz, one with CAS17 and another with CAS18.
You might want to install the G.SKILL DIMM first and set the timings manually before installing the Kingston DIMM.
I would manually set 2400 MHz with 17-17-17-39 as this will stop the motherboard from attempting to train the RAM on each boot.
Note that if you flash the BIOS or clear CMOS that the RAM issue will likely return.
The problem with using Q-flash is that it won’t downgrade the ME firmware which is required for a Coffee Lake CPU to boot.
Do you know what version of ME firmware is currently on the motherboard?
You must use ME firmware version 11.7.1xxx or 11.6.xxx and flash the modified F2 BIOS with Intel
FPT v11 or a hardware programmer to successfully downgrade ME.
- Can I use UEFITool and extract i5-7500 and i3-8300 ?
I presume you mean to extract the microcodes? Yes you can use UEFITool, or you can download them from this thread:
[OFFER] Intel CPU Microcode Archives
Kabylake microcodes are in the socket 1151 folder (CPUID 906E9) and Coffee Lake microcodes are in the socket 1151v2 folder (CPUID’s 906EA, 906EB, 906EC, 906ED).
- Can I extract the Gbe Region from F2 BIOS with UEFITool and replace the one in mod3?
Yes, just make sure it is exactly 8,192 bytes.