X48 Rampage Formula Preview.

[xcr]

Try with NB Voltage 1.27V. The DRAM Clock Fine Delays should change. Check it with AIDA64 or EVEREST.
CPU Clock Skew Delay 300ps and NB Clock Skew Delay 200ps. AI Clock Twister Lighter and DRAM Static Read Disabled.
I keep NB GTL Voltage Reference at 0.67X but if you say that you've got more luck with 0.63X than leave it like that.

If you still can't get it to load Windows without rebooting/BSOD, up the CPU Voltage.

Check the CPU Microcode version with AIDA64 or EVEREST. Download BIOS 1002B-R3 and flash your board with it. Look if the CPU Microcode has been updated for your CPU. If there's an update for your CPU than never bother to flash it back with an official BIOS. Before flashing it do a Clear CMOS and load Setup Defaults. After flashing also Clear CMOS and Load Setup Defaults but this time also disable the power from the PSU and remove the battery for a few minutes.

Thanks alien i will test it out soon and post how it goes.

Edit:
ok ran memtest 86+ stable with somewhere around 2,8-2,9 cpu volt, with cpu and nb ref volts auto and rest on minimum.
Memtest windows gave me error after 100 % 1 single error, i ran 2 instances 1 at 500% and 1 at 280%.

Gonna try upper nb volt 1 stepp see how it goes.

and yes i got microcode update atleast it changed in aid64.