Hello Bahz,
I also upgraded to the latest firmware (v1.09) and did some tests.
- "Gaming Mode" is only active if and only if NKRO is also active. when gaming mode is enabled if I deactivate NKRO, Windows Button still works.
- About the BIOS problem: Keyboard is unable to enter BIOS when NKRO is enabled. "Quick Boot" doesn't affect this behavior.
Mainboard: GIGABYTE X58A-UD5 (Rev 1)
Test 1) Quick Boot Enabled, NKRO Disabled: OKEY
Test 2) Quick Boot Disabled, NKRO Disabled: OKEY
Test 3) Quick Boot Enabled, NKRO Enabled: FAIL (Unable to enter BIOS)
Test 4) Quick Boot Disabled, NKRO Enabled: FAIL (Unabled to enter BIOS)
It works fine and is able to enter BIOS when NKRO is disabled. However, at booting phase, it is not possible to turn off NKRO mode, but I found a workaround to the problem:
Altough it is not possible to revert back to 6KRO during boot phase, switching between profiles still works, therefore I programmed "Profile 3" with NKRO disabled and problem solved. And NKRO is of course always can be changed when computer enters loading operating system phase. So problem kind of solved. This is not a big deal for me really.
(It was able to enter BIOS at previous version (v1.08) when NKRO is enabled.)
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By the way my keyboard version is "ISO 105" layout with "Turkish Q" keyset/keycaps (with Cherry MX BROWN switches)
(It is basically a UK layout with Turkish keycaps)
Here is a picture of it, maybe it helps: