After many weeks having problems to get my G.Skill F4-4000C17D-16GTZR stable yestrady I decided to send the MoBo back to Caseking for RMA. Before of that I RMA'd the memory kits and G.Skill just gave me brand new sticks (maybe there was something wrong with it?, can't say, they look to do always replacements right away) so the chance of getting 2 'faulty' memory kits of cherry-picked memory is almost impossible.
In the meantine Gigabite's support team answered me saying that they were able to replicate my exact same issue on their lab, and their BIOS team gave me a modified version of the BIOS (wich they called 'F10a') just a few days ago. I tried that BIOS but it didn't make much difference from last official release F9. XMP ON, everything else on Auto and I strugled to pass Mem Training being always stucked at Debug LED code 55, but after a CMOS clean it booted and I could land into windows desktop, however it was very, very, very unestable, I was able to run R15 a couple of times but MemTest64 sowed between 120 and 170 errors the few times it could complete the first loop..., atempting to open any program or even web browsers would cause inmediate BSOD.
F9 was more stable as at least I use internet for a few minutes before crashing, however it was giving me more errors on MemTest64 (it doesn't make much sense for me).
Speaking with another user on G.Skill forums that had exact same hardware than me (even PSU and M.2 device) he got it MoBo replaced from Amazon and looks like he just activated XMP and is runig rock solid....
I tryen to relax some timings, but didn't work at all. setting XMO Off and setting frequency manually at 4000MHz and leaving every thing else on Auto o would boot but timings were so crazy high like 20 20 28 62, totally unacceptable.
Does anyone have a clue of what could be the issue or has heard about someone having this issue as well? I don't have previous experience with Caseking's RMA service and I'm not feeling very optimistic...
PS: if someone is interested in having a look to this F10a BIOS just give me a shout by PM and I'll send a WeTransfer with it.
I9 9900K Delided + Der8auer DDC mount
Gigabyte Z390 Aorus Master
Gigabyte 1080 Ti Extreme
Samsung 960 Pro 512 GB M.2 NMVe
EK Custom Loop w/ 2x420mm Rads + 240ml RGB res/pump combo. CPU & GPU block
Corsair C71 View RGB
Windows 10 Pro
Acer Predator Z35p UltraWide 21:9 3440x1440p
All rely Mechanical one hand Keyboard
Cooler Master MH752
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