F4-3000C15D-32GVR XMP2.0 Profile Disappeared suddenly

[Deimosster]

Hi,
My System Spec is;
MB - Gigabyte Z170X-Gaming-7
CPU - 6700K @stock 4200Mhz
Mem - 2x16GB 3000MHZ
GPU - Gigabyte GTX 1070 G1
PS - Seasonic 750W Platinum

The system worked without any issue 2.5 years with XMP 2.0 enabled on Bios until recently i had a freeze on BF5 during gameplay and after restart memory speed dropped to 2133 Mhz.
First thing i rebooted into BIOS and noticed that there is no XMP option anymore
After tinkering more i found that only 1 module can be recognized as XMP eligible on BIOS and on CPU-Z or AIDA64 and sometimes the module without XMP appears without proper G.Skill model and just as DDR4 2133 SDRAM.
The good news is that i can easily overclock to 3000 Mhz 1.2V manually on BIOS and run stable even with CPU @4.5Mhz.

My local reseller told me that they don't have exactly this kit anymore and they can replace it with lower speed memory kit 2400/2666 etc....

What should i do? Ask my old kit back and overclock it manually to 3000Mhz without XPM? Or better agree for lower speed replacement?

Thanks

[GSKILL TECH]

Manual settings or XMP, as long as the system is stable it will be fine.

What country are you in?

[Deimosster]

Manual settings or XMP, as long as the system is stable it will be fine.

What country are you in?

I am from Israel.

Update: The Kit sent for RMA to GSKILL today already so i cannot get it back (at least this is the answer i got from seller). I cannot wait for it ~ 1 month

So they probably will give me other brand or i need to wait too long.