Mismatched Ram issue
Mismatched Ram issue
Your configuration looks solid but worth checking. An I7-10700K with an RTX 2070 and mixed RAM (16GB 3000MHz + 1x Corsair Vengeance 8GB 3000MHz) on an Asus B460F might be fine, though the older CPU could benefit from more RAM for stability. The 240Hz BenQ monitor is a decent choice, but ensure your BIOS supports the RAM speeds you're using. Keep an eye on latency and performance as you go.
You'll need to adjust the speed and voltage yourself, something you can't easily do with the B460 board—consider upgrading to a B560 instead.
You're operating in single-channel mode. However, perform a brief memory check by typing "Windows Memory Diagnostic" in the Start menu and allowing it to run. If it finishes without issues, you're likely 99% confident in stability. Personally, I'm using 24GB with three 8GB DIMMs, which means mixing isn't a major problem—just not ideal. Generally, skipping dual-channel configuration will leave some performance potential untapped.