How to set up 4G Memory / Crypto currency mining?

Unclick “Turn on fast startup (recommended)”. Reboot to enter BIOS setup, set Settings\Advanced\PCI Subsystem Settings\Above 4G memory/Crypto Currency Mining to “Enabled” as below, Save the BIOS settings and shut down the system. Add the remaining 5 graphics cards to the motherboard one by one.

What motherboards do cryptocurrency miners use?

Now the mining craze has led MSI to release BIOS updates for Intel’s 100-series motherboards to increase their performance by allowing them to support more graphics cards. Traditionally, cryptocurrency miners use the most economic motherboard available, which until recently were those using the Intel H81 and B85 chipsets.

What does 4G decoding mean?

Google results give this: "The definition of “Above 4G decoding” is to allow the user to enable or disable memory mapped I/O for a 64-bit PCIe device to 4GB or greater address space, because the primary VGA card should always be mapped below 4GB address."

Should I enable a 4GB limit for ETH mining?

Crypto-miners are advised to enable the checkbox from the moment it appears in the BIOS for proper scaling between two or more cards, because even now the 4GB limit is simply unacceptable for mining ETH.