My computer was running on 4800Mhz, unacceptable, so I did the EXPO and everything went haywire with BSOD, Crash etc.
After much tweaking, I fixed my new gaming setup in BIOS with an Enabled EXPO setting and manually checking the parameters in detail.
ASUS 1222 version
AMD Expo on G Skill International Ent
F5-6000j3636F16GX2-FX5
2x16GB
JEDEC Mem Speed 1
ENABLE EXPO on EZMode set to 6000MHz
Go to Advance F7
Verify Correct Timings:
Tcl 36
Trcd 36
Trp 36
Tras 96
Trc 132
Twr 90
Trfc1 884
Trfc2 480
Trfcsb 390
VDD 1.35
VDDQ 1.35
PMIC Sync All
Mem VDD 1.35
Mem VDDQ 1.35
VPP 1.8
VDDP 1.050
and most Importantly!
Refresh Interval set to AUTO
I hope this helps GAME ON!