MSI B450 TOMAHAWK MAX User Manual

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BIOS Setup
fAbove 4G memory/ Crypto Currency mining [Disabled]
Enables or disables 64-bit capable devices to be decoded in above 4G address
space. It is only available if the system supports 64-bit PCI decoding.
[Enabled] Allows you to utilize more than 4x GPUs.
[Disabled] Disables this function.
fPCIe SlotX Lanes Configuration
PCIe lanes configuration is for MSI M.2 Xpander / MSI M.2 Xpander-Z / Other M.2
PCIe storage card. The options in this item will vary with the installed processor.
f ACPI Settings
Sets ACPI parameters of onboard power LED behaviors. Press Enter to enter the sub-
menu.
fPower LED [Blinking]
Sets shining behaviors of the onboard Power LED.
[Dual Color] The power LED turns to another color to indicate the S3 state.
[Blinking] The power LED blinks to indicate the S3 state.
f Integrated Peripherals
Sets integrated peripherals' parameters, such as LAN, HDD, USB and audio. Press
Enter to enter the sub-menu.
fOnboard LAN Controller [Enabled]
Enables or disables the onboard LAN controller.
fLAN Option ROM [Disabled]
Enables or disables the legacy network Boot Option ROM for detailed settings. This
item will appear when Onboard LAN Controller is enabled.
[Enabled] Enables the onboard LAN Boot ROM.
[Disabled] Disables the onboard LAN Boot ROM.
fNetwork Stack [Disabled]
Sets UEFI network stack for optimizing IPv4 / IPv6 function. This item is available
when Onboard LAN Controller is Enabled.
[Enabled] Enables UEFI network stack.
[Disabled] Disables UEFI network stack.
fIpv4 PXE Support [Enabled]
When Enabled, the system UEFI network stack will support Ipv4 protocol. This item
will appear when Network Stack is Enabled.
[Enabled] Enables the Ipv4 PXE boot support.
[Disabled] Disables the Ipv4 PXE boot support.
fIpv6 PXE Support [Enabled]
When Enabled, the system UEFI network stack will support Ipv6 protocol. This item
will appear when Network Stack is enabled.
[Enabled] Enables the Ipv6 PXE boot support.
[Disabled] Disables the Ipv6 PXE boot support.

MSI B450 TOMAHAWK MAX Specifications

General

Form Factor	atx
Chipset	amd b450
Processor Socket	socket am4
Processor Compatibility	amd ryzen 3 2000 series, amd ryzen 5 2000 series, amd ryzen 7 2000 series, amd ryzen 3 3000 series, amd ryzen 5 3000 series, amd ryzen 7 3000 series, amd ryzen 3 4000 series, amd ryzen 5 4000 series, amd ryzen 7 4000 series, amd ryzen 7
Maximum Memory	64 gigabytes
Power Connector	24-pin main power connector, 8-pin atx12v connector
PCI Bus Slots	5
Memory Slots	4

Weight and Dimensions

Width	12 inches