After a week of testing with current BIOS it's not possible to run high voltage or higher memory speeds as it currently stands than 3200Mhz on RAM.
There are some kind of issue related to the way memory voltage is set as the higher voltage you try to use the harder the board has in trying to do a clean POST without resetting the BIOS. Basically impossible with anything reaching 1.35V or above. Change a setting or reboot and all gets reset with ever more difficulty reaching max voltage 1.500V (I which this was at least 1.600V MAX)
And the missing RAM options might help but still just speculation. I've requested a updated BIOS with these features and 22.214.171.124, but it seems kinda hopeless.
I'm not impressed as it stands. The BIOS is filled with what seems ECC, encryption and server related settings if that is your preferences. Though I reckon most of these settings will need to be set to "disabled" if you want to OC as it stands compared to the other board vendors. Though none hurt directly leaving AUTO everything but it's a hassle setting everything the way you want if you get a BIOS reset over and over again which is easy when trying things with the RAM perimeters.
Sure the CPU OC is EASY on this board. the VRM doesn't sweat delivering 1.550-1.600V to the CPU in the 4.05-4.10Ghz range barely reaching 60C doing a bench. And that is with max 500khertz Vcore frequency and max 450khertz VsoC frequency. You have more trouble getting your CPU not to reach MAX temperatures even with custom water cooling before they sweat a bit at all.
VRM ++ grade. (4+2 with doublers for effective 8+4 phase and 60Amps each)
RAM features --- grade (they don't work at all but the most basic options)
Sound +- (no preference, ALC 1220 is ok)
Fan headers are only PWM, no voltage option for 3pin(they run max speed).
The extra power/reset/cmos-clear buttons are a ++ feature on the board itself.
dual-bios with the switch is good. Though I've not managed to brick the BIOS yet on this board as I did several times on my Gigabyte.
LN2 switch is nice but probably not to useful for most usages. Sets clock to 550Mhz and 1.250Volts. You can use it on the fly with computer running.
10k capacitors is ok + feature, compared to the standard 5k everywhere. Though does it matter in the end?
The RAM slots are kinda a hassle to get the memory inserted into, they are only 1 side latched. Took a while for me to figure out how to get them into place properly, it's easy to do it wrong here.
- feature there
I'm at a loss here currently. Not being able to run higher memory speeds gimps performance significantly compared to my dinky AB350-Gaming 3. the better VRM doesn't help getting more CPU speed to take the hit and compensate for the lack of RAM speed. I could reach 4.0Ghz on the gigabyte and run it on desktop and regular use, with this board sure I now can stress test if I want and never have to worry about overheating the VRM but I'm reaching the limits of my CPU silicon to handle the voltages required to reach higher clocks.
I'm already at 1.600Volts for 4.1Ghz and hitting max temperature and degradation "facts". Release day silicon FTW...
Will have to wait and see if a new BIOS fixes anything on the RAM department.
I tried my Kingston 3466Mhz 19-23-23 1.200 kits and my Corsair 2666 16-18-18 kit in the board and it had more trouble with my dual-rank 2x8Gb corsair kit than the single-rank 2or4x8Gb Kingston.
I could get the Kingston to boot at times with 3333Mhz but testing showed errors and a reboot reset everything every time. 2x8Gb Kingston once booted 3466Mhz but was instant blue screen and I could never get it for another try.
Corsair I didn't try too much as XMP returned errors and I could not get it error free with the usual quick tricks like procODT and RTT values. It always wanted to overvolt this kit to 1.350V when it's rated 1.200volts and worked as such on the other board. Probably would have needed to tinker with the memory timings to some degree but I was utterly sick of trying any more. It was always a little tricky kit as I recall even on the Gigabyte.
Could not get it to 3200Mhz as I had OC:ed it to on the Gigabyte. Probably the ram voltage thing as it needed to be 1.470-1.500V to run as such.
Take the above as you want.
NEW: Biostar x480GT8 ~4.0Ghz CPU, 3200Mhz RAM.... not really better
OLD: Ryzen 7 1700 @ ~4.0Ghz, Gigabyte GA-AB350 Gaming 3, F25 BIOS Agesa 126.96.36.199
4x8Gb Kingston HX434C19FB2K2/16 3466C19 1.2V @ 3733Mhz 16.(17).188.8.131.52.tRFC 568 1T 1.490V (Micron E-die 16nm)
Corsair LPX 2x8Gb 2666C16R @ 3200Mhz 14.(17).184.108.40.206...(260) 1T1.470V (Micron B-die 25nm)