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Gigabyte Z270 ATX motherboard, black PCB with silver heatsinks and blue slots

GIGABYTE

GIGABYTE GA-Z270-HD3 rev 1.0 Intel motherboard

SKU CH-5DX8-5JR2E

ATX board with LGA 1151 socket, Z270 chipset, four DDR4 slots up to 64 GB, one full-length PCIe 3.0 x16 slot, two x4 slots, six SATA 6Gb/s ports, one M.2 connector and Realtek ALC887 audio

  • CPU Socket TypeLGA 1151
  • CPU TypeCore i7 / i5 / i3 / Pentium / Celeron (LGA1151)
  • Supported CPU Technologies* Not Compatible with Intel 8th Gen CPUs
  • ChipsetIntel Z270
  • Number of Memory Slots4x288pin (DDR4)
  • Memory StandardDDR4 3866(O.C.)/ 3800(O.C.)/ 3733(O.C.)/ 3666(O.C.)/ 3600(O.
  • Supports 64 GB DDR4 for heavy multitasking
  • Four 288-pin slots allow up to 3866 O.C. memory speed
  • Intel Z270 chipset with LGA 1151 socket fits Core i7, i5, i3, Pentium, Celeron
  • PCIe 3.0 x16 slot at x16 plus two x4 slots and two x1 slots for expansion
  • Realtek ALC887 audio delivers 7.1-channel output with D-Sub, DVI-D and HDMI video

Socket LGA 1151 Z270 ATX Motherboard

The GIGABYTE GA-Z270-HD3 rev 1.0 is an ATX motherboard built on the Intel Z270 chipset for LGA 1151 processors. It supports Core i7, i5, i3, Pentium and Celeron CPUs but is not compatible with 8th Generation Intel processors. Four 288-pin DDR4 slots provide dual-channel memory up to 64 GB.

Thermals noise and power draw

Passive heatsinks on the voltage regulator and chipset dissipate heat without adding fan noise during typical workloads. The board draws power through standard ATX and 8-pin CPU connectors, keeping system acoustics dependent on the chosen cooler and case airflow.

Bundled accessories and software

The rear I/O panel includes D-Sub, DVI-D and HDMI video outputs for integrated graphics, each supporting 1920x1200 at 60 Hz. Six SATA 6 Gb/s ports, one SATA Express connector and an M.2 Socket 3 M-key slot accept 2242, 2260, 2280 and 22110 drives. Realtek ALC887 audio delivers up to 7.1-channel output and a Realtek GbE LAN chip handles wired networking.

Highlights

  • Supports 64 GB DDR4 for heavy multitasking
  • Four 288-pin slots allow up to 3866 O.C. memory speed
  • Intel Z270 chipset with LGA 1151 socket fits Core i7, i5, i3, Pentium, Celeron
  • PCIe 3.0 x16 slot at x16 plus two x4 slots and two x1 slots for expansion
  • Realtek ALC887 audio delivers 7.1-channel output with D-Sub, DVI-D and HDMI video

Specifications

BrandGIGABYTE
ModelGA-Z270-HD3 (rev. 1.0)
CPU Socket TypeLGA 1151
CPU TypeCore i7 / i5 / i3 / Pentium / Celeron (LGA1151)
Supported CPU Technologies* Not Compatible with Intel 8th Gen CPUs
ChipsetIntel Z270
Number of Memory Slots4x288pin (DDR4)
Memory StandardDDR4 3866(O.C.)/ 3800(O.C.)/ 3733(O.C.)/ 3666(O.C.)/ 3600(O.C.)/ 3466(O.C.)/ 3400(O.C.)/ 3333(O.C.)/ 3300(O.C.)/ 3200(O.C.)/ 3000(O.C.)/ 2800(O.C.)/ 2666(O.C.)/ 2400(O.C.)/ 2133
Maximum Memory Supported64GB
Channel SupportedDual Channel
PCI Express 3.0 x161 x PCI Express x16 slot, running at x16 (PCIEX16)/* For optimum performance, if only one PCI Express graphics card is to be installed, be sure to install it in the PCIEX16 slot./2 x PCI Express x16 slots, running at x4 (PCIEX4_1, PCIEX4_2)
PCI Express x12 x PCI Express x1 slots/(All of the PCI Express slots conform to PCI Express 3.0 standard.)
PCI Slots1 x PCI Slot
Serial ATA (SATA)6 x SATA 6Gb/s
SATA Express1 x SATA Express connector
M.21 x M.2 connector (Socket 3, M key, type 2242/2260/2280/22110 SATA and PCIe x4/x2 SSD support)
SATA RAID0/1/5/10
Audio ChipsetRealtek ALC887
Audio Channels2/4/5.1/7.1-channel
LAN ChipsetRealtek GbE LAN chip
Max LAN Speed1Gbps
Back I/O Ports1 x HDMI / 1 x PS/2 Keyboard/Mouse Combo / 2 x USB 2.0/1.1 / 4 x USB 3.1 Gen 1 Type-A
PS/21 x PS/2 keyboard/mouse port
Video Ports1 x D-Sub port/1 x DVI-D port
HDMI1 x HDMI
RJ451 x RJ45
USB 3.14 x USB 3.1 Gen 1 ports
USB 1.1/2.02 x USB 2.0
Audio Ports6 x audio jacks (Center/Subwoofer Speaker Out, Rear Speaker Out, Side Speaker Out, Line In, Line Out, Mic In)
Onboard USB2 x USB 3.1 Gen 1 headers/2 x USB 2.0/1.1 headers
Other Connectors1 x 24-pin ATX main power connector/1 x 8-pin ATX 12V power connector/1 x CPU fan header/3 x system fan headers/1 x front panel header/1 x front panel audio header/1 x S/PDIF Out header/1 x Trusted Platform Module (TPM) header/1 x serial port header/1 x parallel port header/1 x Clear CMOS jumper
Form FactorATX
Dimensions (W x L)12.0" x 8.9"
Power Pin24 Pin
FeaturesMulti-Graphics Technology /- Support for AMD Quad-GPU CrossFireX and 2-Way AMD CrossFire technologies (PCIEX16, PCIEX4_1)//I/O Controller:/- iTE I/O Controller Chip//H/W Monitoring:/- Voltage detection/- Temperature detection/- Fan speed detection/- Overheating warning/- Fan fail warning/- Fan speed control/* Whether the fan (pump) speed control function is supported will depend on the fan (pump) you install.//BIOS:/- 2 x 64 Mbit flash/- Use of licensed AMI UEFI BIOS/- Support for DualBIOS/- PnP 1.0a, DMI 2.7, WfM 2.0, SM BIOS 2.7, ACPI 5.0//Unique Features:/- Support for APP Center/

Questions about this item

How do I install a CPU into the LGA 1151 socket on this board, and what step do builders often miss?

Lift the socket lever, align the processor notches with the socket keys, lower the CPU gently without forcing it, close and lock the lever, then apply thermal paste and mount the cooler before powering on.

What maintenance or replacement will the Realtek ALC887 audio codec or its onboard capacitors need over time?

The onboard audio circuitry is solid-state and requires no scheduled maintenance; only a physical impact or liquid damage would ever require board-level repair.

What limit appears first when the single PCI Express 3.0 x16 slot runs a modern GPU under sustained load?

The slot provides up to 16 lanes of PCIe 3.0 bandwidth; the practical ceiling is the GPU's own thermal and power limits rather than the slot itself.

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