I found the 0803 upgrade strange as well. I thought I broke it until I realized that since the cmos cleared it defaults to using the PCIE card which I have installed but I'm not using for my monitors since I use it for GPU passthrough to a windows VM with qemu. Needless to say I was quite scared for a while there.
Deviating off the topic slightly, for whatever reason I can't post my own thread so I did complete the 0803 upgrade from 0231 but now when I set my overclock of 4.7GHz on my 6700k to adaptive voltage I get less than stock! I even tried upping the voltage but still doesn't go past 39. I'm not convinced that i7z reads the core voltage correctly because I have it set to 1.38 with the offset on auto. But as you can see, multiplier is set to 47, but I'm at 100% and not going past 39 and temps are great at below 60 degrees. If I set voltage to manual or auto I have no issues (but obviously I don't want to leave it on auto or manual). With it the same but set to 45 I get even lower, 37x.
Socket [0] - [physical cores=4, logical cores=8, max online cores ever=4]
TURBO ENABLED on 4 Cores, Hyper Threading ON
Max Frequency without considering Turbo 4107.18 MHz (100.18 x [41])
Max TURBO Multiplier (if Enabled) with 1/2/3/4 Cores is 47x/47x/47x/47x
Real Current Frequency 3900.07 MHz [100.18 x 38.93] (Max of below)
Core [core-id] :Actual Freq (Mult.) C0% Halt(C1)% C3 % C6 % Temp VCore
Core 1 [0]: 3900.07 (38.93x) 100 2.69 0 0 56 1.1393
Core 2 [1]: 3900.07 (38.93x) 100 2.69 0 0 58 1.1393
Core 3 [2]: 3900.07 (38.93x) 100 2.69 0 0 57 1.1393
Core 4 [3]: 3900.07 (38.93x) 100 2.69 0 0 56 1.1393