First update for both motherboards.
 
BIOS 1.03 (E599 DARK) / BIOS 1.05 (E597 FTW)

• Improves SLI Compatibility
  
• Improves memory compatibility for 4600MHz/4400MHz dual-rank modules
• Additional memory-related improvements

 

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Windows Installation

• Download the correct .zip file below for your motherboard:        

         121-RL-E599-KR - EVGA Z590 DARK - v1.03
         121-RL-E597-KR - EVGA Z590 FTW - v1.05

• First go into your BIOS and load defaults, save and exit
• Close all open programs.
• Go into the folder where you unzipped this package and double-click update.bat
• Press Y to start the flash process
• DO NOT TURN OFF POWER OR RESET DURING THE FLASH PROCESS
• After the flashing is finished, the system will automatically shut down. Then power on again and go into BIOS to setup.
• NOTE: If flash box immediately closes after flash attempt, the flash may need to be ran from a CMD prompt with administrator privileges or DOS version.

  
BIOS Installation

• Extract the contents of .zip file to USB flash drive (must be formatted as FAT32)
• Reboot the machine and go into the system BIOS
• From the BIOS, navigate to the Save & Exit tab and open "Select BIOS File."
• Select the .bin file you wish to flash.

 
Please let me know if anyone runs into problems with this update.  Thanks!

Keep us updated on if you see any improvements (i.e. RAM speed/timings, etc.)

so far on BIOS 1.05 I am stable at 4000mhz gear 2 with two sticks in DIMM 2 and 4.  Adding remaining two sticks now.
 
*edit.  so far so good with all 4 sticks installed.  so 64gb of 4000mhz gear 2.  not too shabby and i figured if I was just patient for the first BIOS update things would get sorted.  nice work EVGA!
 
**edit 2:  should I even bother with the 5333mhz ram sticks?  seems like those were meant for the dark. 

rblaes_99
so far on BIOS 1.05 I am stable at 4000mhz gear 2 with two sticks in DIMM 2 and 4.  Adding remaining two sticks now.
 
*edit.  so far so good with all 4 sticks installed.  so 64gb of 4000mhz gear 2.  not too shabby and i figured if I was just patient for the first BIOS update things would get sorted.  nice work EVGA!
 
**edit 2:  should I even bother with the 5333mhz ram sticks?  seems like those were meant for the dark. 

I'm really happy to hear that, given the problems you were having.  Thanks for the updates.
 
I mean, you can always give it a shot with the higher speed sticks.  Sometimes, even if you can't hit 5333mhz, you might be OK at a lower speed with tighter timings.  At the same time, bandwidth is more important than the timings, given a choice between the two, and at a certain point you're only going to get diminishing returns on performance.

Unfortunately BIOS updated did nothing for me. Still stuck at 3466 gear 1 and no CPU boost past 4.6.

 
That didn't work out too well.
 
BIOS updated no problem, although it reset my Windows security pin, so I had to reset that with a secondary email before I could log in to Windows - maybe something to do with TPM2.0?
 
Once I knew BIOS was ok on default settings, I went in and switched memory to XMP settings (3600MHz, 16-18-18-36 1.35V) and gear on auto. No problems booting with that.
 
Then went and switched to Gear 1. Not happening. Couldn't even get into BIOS, I had to reset CMOS.
 
Next tried manually setting memory to 3600MHz, 16tCL, 18tRCD/tRP, 36tRAS, Gear 1, and everything else on auto (voltage also on auto, although it showed 1.382V in BIOS). Booted past the Z590 splash screen but failed while trying to load Windows.
 
Next tried manually setting memory to 3600MHz, Gear 1, and everything else on auto. Again it booted past the Z590 splash screen but failed while trying to load Windows.
 
Since this is only a temporary rig until I get the Z590 Dark set up, I just went with XMP settings and left Gear on auto.
 
Posting for posterity.
 
Corsair Dominator Platinum RGB 4x8GB 3600MHz C16 model CMT32GX4M4K3600C16.
 
 

Nereus
 
That didn't work out too well.
 
BIOS updated no problem, although it reset my Windows security pin, so I had to reset that with a secondary email before I could log in to Windows - maybe something to do with TPM2.0?
 
Once I knew BIOS was ok on default settings, I went in and switched memory to XMP settings (3600MHz, 16-18-18-36 1.35V) and gear on auto. No problems booting with that.
 
Then went and switched to Gear 1. Not happening. Couldn't even get into BIOS, I had to reset CMOS.
 
Next tried manually setting memory to 3600MHz, 16tCL, 18tRCD/tRP, 36tRAS, Gear 1, and everything else on auto (voltage also on auto, although it showed 1.382V in BIOS). Booted past the Z590 splash screen but failed while trying to load Windows.
 
Next tried manually setting memory to 3600MHz, Gear 1, and everything else on auto. Again it booted past the Z590 splash screen but failed while trying to load Windows.
 
Since this is only a temporary rig until I get the Z590 Dark set up, I just went with XMP settings and left Gear on auto.
 
Posting for posterity.
 
Corsair Dominator Platinum RGB 4x8GB 3600MHz C16 model CMT32GX4M4K3600C16.
 
 

did you bump up those RAM voltages too? VCCIO SA and the others?  i put mine all to 1.3v following Nikes advice.  

Nereus
 
That didn't work out too well.
 
BIOS updated no problem, although it reset my Windows security pin, so I had to reset that with a secondary email before I could log in to Windows - maybe something to do with TPM2.0?
 
Once I knew BIOS was ok on default settings, I went in and switched memory to XMP settings (3600MHz, 16-18-18-36 1.35V) and gear on auto. No problems booting with that.
 
Then went and switched to Gear 1. Not happening. Couldn't even get into BIOS, I had to reset CMOS.
 
Next tried manually setting memory to 3600MHz, 16tCL, 18tRCD/tRP, 36tRAS, Gear 1, and everything else on auto (voltage also on auto, although it showed 1.382V in BIOS). Booted past the Z590 splash screen but failed while trying to load Windows.
 
Next tried manually setting memory to 3600MHz, Gear 1, and everything else on auto. Again it booted past the Z590 splash screen but failed while trying to load Windows.
 
Since this is only a temporary rig until I get the Z590 Dark set up, I just went with XMP settings and left Gear on auto.
 
Posting for posterity.
 
Corsair Dominator Platinum RGB 4x8GB 3600MHz C16 model CMT32GX4M4K3600C16.
 
 

I'm actually having all the same problems on my z590 FTW with a binned 11900k ... and have tried multiple different memory kits which all post fine at Gear 1 on my MSI board :( 

Nereus
 
Will the Z590 Dark motherboards be going out with this new BIOS version already flashed?
 

I can check to get an official answer, but my guess is that the first batch of boards will have the default BIOS 1.02 and successive productions will update the BIOS to 1.03 or higher.

Nereus
 
That didn't work out too well.
 
BIOS updated no problem, although it reset my Windows security pin, so I had to reset that with a secondary email before I could log in to Windows - maybe something to do with TPM2.0?

Yeah this is the issue with software TPM versus using a plug-in module is you lose your keys during a bios reset or flash.  This will happen on any motherboard, not specific to these.

I've been experiencing similar issues across a variety of ram kits on both my 590 FTW and Dark - specifically when trying to use XMP and/or many settings set to Auto. 
 
I recognize this is not a "solution" per se but what has worked for me on both boards is to hardcode the voltages, ram freq, gear, timings, and most of the subtimings. I have several g.skill 32gb (2x16) dual rank kits where the subtimings are fairly similar and I had tested them on my z490 DARK so readily knew the timings they were capable of (also special shout out to Luumi for his wonderful Youtube videos). 
 
So in my experience, the issues SEEM to stem from the board having to find all these settings during training. 

Nereus

MackWage
I've been experiencing similar issues across a variety of ram kits on both my 590 FTW and Dark - specifically when trying to use XMP and/or many settings set to Auto. 
 
I recognize this is not a "solution" per se but what has worked for me on both boards is to hardcode the voltages, ram freq, gear, timings, and most of the subtimings. I have several g.skill 32gb (2x16) dual rank kits where the subtimings are fairly similar and I had tested them on my z490 DARK so readily knew the timings they were capable of (also special shout out to Luumi for his wonderful Youtube videos). 
 
So in my experience, the issues SEEM to stem from the board having to find all these settings during training. 

Yup tried entering the XMP values manually instead of XMP, upped the voltage, VCCIO_Aux etc.. nothing works so far. Memory is fine on gear 1 at 3600MHz though. Really frustrating when I *know* this memory is solid at 4000MHz 1.35V XMP on prior motherboards (and it's b-die, for what it's worth).
 

Agreed. Very frustrating for me too.