Gigabyte Z390 GAMING X - 1-5 Installing an Expansion Card; 1-6 Back Panel Connectors

The four memory sockets are divided into two channels and each channel has two memory sockets as following:
ChannelA:DDR4_A1,DDR4_A2
ChannelB:DDR4_B1,DDR4_B2
DualChannelMemoryCongurationsTable
DDR4_B1 DDR4_B2 DDR4_A1 DDR4_A2
2 Modules
- - DS/SS - - DS/SS
DS/SS - - DS/SS - -
4 Modules DS/SS DS/SS DS/SS DS/SS
(SS=Single-Sided,DS=Double-Sided,"--"=NoMemory)
DuetoCPUlimitations,readthefollowingguidelinesbeforeinstallingthememoryinDualChannelmode.
1. DualChannelmodecannotbeenabledifonlyonememorymoduleisinstalled.
2. WhenenablingDualChannelmodewithtwoorfourmemorymodules,itisrecommendedthatmemory
of the same capacity, brand, speed, and chips be used.
1-5 Installing an Expansion Card
Readthefollowingguidelinesbeforeyoubegintoinstallanexpansioncard:
• Make sure the motherboard supports the expansion card. Carefully read the manual that came
with your expansion card.
• Always turn off the computer and unplug the power cord from the power outlet before installing an
expansion card to prevent hardware damage.
1-6 Back Panel Connectors
USB 2.0/1.1 Port
TheUSBportsupportstheUSB2.0/1.1specication.UsethisportforUSBdevices.
PS/2 Keyboard/Mouse Port
Use this port to connect a PS/2 mouse or keyboard.
USB 3.1 Gen 1 Port
TheUSB3.1Gen1portsupportstheUSB3.1Gen1specicationandiscompatibletotheUSB2.0
specication.UsethisportforUSBdevices.
HDMI Port
TheHDMIportsupportsHDCP2.2andDolbyTrueHDandDTSHDMasterAudio
formats.Italsosupportsupto192KHz/16bit8-channelLPCMaudiooutput.You
canuse thisport to connect your HDMI-supported monitor.The maximumsupported resolution is
4096x2160@30Hz,buttheactualresolutionssupportedaredependentonthemonitorbeingused.
AfterinstallingtheHDMIdevice,makesuretosetthedefaultsoundplaybackdevicetoHDMI.
(The item name may differ depending on your operating system.)
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