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Full-size ATX motherboard in dark matte finish with four DDR4 slots and multiple expansion slots

GIGABYTE

GIGABYTE Z390 D LGA 1151 Intel motherboard

SKU CH-3GSG-NT6SA

ATX board for 8th and 9th Gen Intel Core CPUs with four DDR4 slots up to 128 GB, three PCIe 3.0 x16 slots, six SATA ports and one M.2 slot

  • CPU Socket TypeLGA 1151 (300 Series)
  • CPU TypeCore i7 / i5 / i3 (8th Gen, LGA1151)
  • ChipsetIntel Z390
  • Onboard Video ChipsetSupported only by CPU with integrated graphic
  • Number of Memory Slots4x288pin (DDR4)
  • Memory StandardDDR4 2666
  • Supports 9th and 8th Gen Intel Core processors via LGA 1151 socket
  • Dual-channel DDR4 memory up to 128 GB with XMP profiles
  • Three PCI Express 3.0 x16 slots for multi-GPU configurations
  • Six SATA 6Gb/s ports plus one M.2 slot for storage flexibility
  • Realtek ALC887 7.1-channel audio and Intel Gigabit LAN for connectivity

Z390 chipset LGA 1151 motherboard

This ATX board uses the Intel Z390 chipset and the LGA 1151 socket to support 8th and 9th generation Core i9, i7, i5, i3, Pentium and Celeron processors. Four 288‑pin DDR4 slots accept up to 128 GB in dual‑channel mode. Three PCI Express 3.0 x16 slots and three x1 slots give room for graphics cards and add‑in boards.

Thermals noise and power draw

The board draws power through standard ATX and CPU connectors and runs at stock speeds with typical airflow. Integrated voltage regulation handles supported CPUs without extra cooling in normal desktop workloads. No onboard fan headers are described in the data, so case fans manage system noise.

Build quality connectors and mounting

Six SATA 6Gb/s ports and one M.2 socket provide storage options, with RAID 0, 1, 5, 10 supported on the SATA array. Realtek ALC887 delivers 7.1 channel audio and a Realtek GbE LAN chip supplies 1 Gbps wired networking. Rear I/O includes video outputs that function only when the installed CPU has integrated graphics.

Highlights

  • Supports 9th and 8th Gen Intel Core processors via LGA 1151 socket
  • Dual-channel DDR4 memory up to 128 GB with XMP profiles
  • Three PCI Express 3.0 x16 slots for multi-GPU configurations
  • Six SATA 6Gb/s ports plus one M.2 slot for storage flexibility
  • Realtek ALC887 7.1-channel audio and Intel Gigabit LAN for connectivity

Specifications

BrandGIGABYTE
ModelZ390 D
CPU Socket TypeLGA 1151 (300 Series)
CPU TypeCore i7 / i5 / i3 (8th Gen, LGA1151)
ChipsetIntel Z390
Onboard Video ChipsetSupported only by CPU with integrated graphic
Number of Memory Slots4x288pin (DDR4)
Memory StandardDDR4 2666
Maximum Memory Supported128GB
Channel SupportedDual Channel
PCI Express 3.0 x163 x PCI Express 3.0 x16
PCI Express x13 x PCI Express x1
Serial ATA (SATA)6 x SATA 6Gb/s
M.21 x M.2
Intel Optane ReadyYes
SATA RAID0/1/5/10
Audio ChipsetRealtek ALC887
Audio Channels7.1 Channels
LAN ChipsetRealtek GbE LAN chip
Max LAN Speed1Gbps
Onboard USB2 x USB 3.1 + 4 x USB 2.0
Other Connectors1 x CPU fan header3 x system fan headers1 x RGB LED strip header1 x front panel header1 x front panel audio header1 x S/PDIF Out header1 x Thunderbolt add-in card connector1 x Trusted Platform Module (TPM) header (2x6-pin, for the GC-TPM2.0_S module only)1 x serial port header1 x Clear CMOS jumper
Form FactorATX
LED LightingRGB
Dimensions (W x L)12.0" x 9.1"
Power Pin24 Pin
FeaturesMulti-Graphics Technology:Support for AMD Quad-GPU CrossFire and 2-Way AMD CrossFire technologiesI/O Controller:iTE I/O Controller ChipH/W Monitoring:Voltage detectionTemperature detectionFan speed detectionOverheating warningFan fail warningFan speed control* Whether the fan speed control function is supported will depend on the fan you install.BIOS:1 x 128 Mbit flashUse of licensed AMI UEFI BIOSPnP 1.0a, DMI 2.7, WfM 2.0, SM BIOS 2.7, ACPI 5.0Unique Features:Support for APP Center* Available applications in APP Center may vary by motherboard model. Supported functions of each appli

Questions about this item

How do I install the CPU into the LGA 1151 socket and what step is often missed?

Lift the socket lever, align the processor notches with the socket keys, lower the CPU gently without forcing it, close the load plate, and lock the lever back down; the step many miss is removing the plastic protective cover from the load plate before seating the processor.

What maintenance will the board need over time?

The only routine item is the CMOS battery that keeps BIOS settings; when the system starts losing the date and time at every cold boot, power off, unplug the unit, swap the coin cell for a fresh one, then re-enter any custom UEFI settings.

What limit appears first during sustained heavy loads?

The VRM heatsinks are modest, so under prolonged all-core workloads the voltage-regulator temperature rises first and can trigger throttling; adding case airflow or a small fan pointed at the heatsink area raises the thermal ceiling.

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