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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

  • ProcessorCore i7 / i5 / i3 / Pentium / Celeron (LGA1151)
  • ChipsetIntel Z270
  • Form factorATX
  • CPU socketLGA 1151
  • CPU technologies* Not Compatible with Intel 8th Gen CPUs
  • Memory slot count4 × 288pin (DDR4)
  • 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.

How it compares

Measured against everything we stock in Motherboards for Intel CPUs, at today’s prices. Recalculated every night.

Price $49.99
Cheaper than about 85% of the 2,965 comparable items (median $97.99).

New to this? Buying PC parts with Monero — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameGIGABYTE
Model nameGA-Z270-HD3 (rev. 1.0)
Processor
ProcessorCore i7 / i5 / i3 / Pentium / Celeron (LGA1151)
CPU socketLGA 1151
ChipsetIntel Z270
CPU technologies* Not Compatible with Intel 8th Gen CPUs
Memory
Memory slot count4 × 288pin (DDR4)
Supported memoryDDR4 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
Max supported RAM64 GB
Memory channelsDual Channel
Storage
SATA ports6 x SATA 6Gb/s
M.2 slots1 x M.2 connector (Socket 3, M key, type 2242/2260/2280/22110 SATA and PCIe x4/x2 SSD support)
SATA and RAID support0/1/5/10
Audio & video
Audio chipRealtek ALC887
Sound channels2/4/5.1/7.1-channel
Connectivity
Ethernet controllerRealtek GbE LAN chip
Maximum network speed1 Gbit/s
Ports & slots
PCIe 3.0 x16 slots1 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)
PCIe x1 slots2 x PCI Express x1 slots/(All of the PCI Express slots conform to PCI Express 3.0 standard.)
PCI slots1 x PCI Slot
Rear panel 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/2 ports1 x PS/2 keyboard/mouse port
Video connectors1 x D-Sub port/1 x DVI-D port
HDMI ports1 x HDMI
Ethernet port1 x RJ45
USB 3.1 ports4 x USB 3.1 Gen 1 ports
USB 2.0 ports2 x USB 2.0
Audio jacks6 x audio jacks (Center/Subwoofer Speaker Out, Rear Speaker Out, Side Speaker Out, Line In, Line Out, Mic In)
Onboard USB headers2 x USB 3.1 Gen 1 headers/2 x USB 2.0/1.1 headers
Power
Power connectors24 Pin
Size & build
Form factorATX
Width and length12.0 in × 8.9 in
More details
SATA express1 x SATA Express connector

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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