Hello, I trying to connect 3 monitors to my PC (Core i5-3570K/HD Graphics 4000). I have 3 ports on my mother board - DVI, HDMI and VGA. Two monitors (DVI+HDMA) work well, but when I connect third monitor over VGA, then only two of them work. Any two monitors work good in any combinations (DVI+HDMI, DVI+VGA, HDMI+VGA), but not all together - when third monitor is connected then one of them shows black screen anyway.
Windows 10 detects all monitors in display properties, but no image appears at one monitor even during BIOS start while two another ones show ASUS motherboard logo.
Also, I read about this videochip requires that if you use more than 2 monitors then all connections should be digital. In other words it is unable to mix analog VGA with any other digital connections. It's ok, but how should I use only digital connections for 3 monitors if I have only DVI, HDMI and VGA ports on my motherboard?
Your processor supports three monitors. https://ark.intel.com/content/www/us/en/ark/products/65520/intel-core-i5-3570k-processor-6m-cache-up...
"‡ This feature may not be available on all computing systems. Please check with the system vendor to determine if your system delivers this feature, or reference the system specifications (motherboard, processor, chipset, power supply, HDD, graphics controller, memory, BIOS, drivers, virtual machine monitor-VMM, platform software, and/or operating system) for feature compatibility. Functionality, performance, and other benefits of this feature may vary depending on system configuration."
So, check with Asus.
I additionally add: