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Green rectangular ATX motherboard with silver CPU socket, two black DDR4 slots, one long PCIe x16 slot, M.2 slot

DELL

DELL Inspiron 3670 H4VK7 LGA 1151 DDR4 Intel Motherboard

SKU CH-DMWD-GJ78D

An ATX motherboard with an LGA 1151 socket supports Intel Core i7, i5 or i3 processors, two DDR4 2400 slots up to 16 GB, one PCIe 3.0 x16 slot, one M.2 slot, 2.1-channel audio, Gigabit LAN.

  • ProcessorCore i7 / i5 / i3 (LGA1151)
  • Form factorATX
  • CPU socketLGA 1151
  • Memory slot count2 × 288pin (DDR4)
  • Supported memoryDDR4 2400
  • Max supported RAM16 GB
  • LGA 1151 socket accepts Intel Core i7 i5 i3 processors
  • Two 288 pin DDR4 slots support up to 16 GB memory
  • PCI Express 3.0 x16 plus M.2 slot for graphics and storage expansion
  • 1 channel audio with HDMI and four USB 3.0 ports on rear I/O
  • ATX form factor fits standard desktop cases

Dell Inspiron 3670 motherboard

This Dell Inspiron 3670 board is a replacement part for LGA 1151 desktop systems. It accepts Core i7, i5 or i3 processors and two DDR4 2400 modules up to 16 GB total. The ATX layout fits standard chassis mounts.

Build integration

One PCI Express 3.0 x16 slot takes a graphics card while a second x16 slot and a Mini PCI slot provide additional expansion. An M.2 socket is present for storage. Rear I/O supplies one HDMI output, four USB 3.0 ports and a 1 Gbps RJ45 connection. Audio runs at 2.1 channels.

Capacity and headroom

The two 288-pin slots support up to 16 GB of DDR4 memory. The single full-length PCIe 3.0 x16 slot handles one discrete GPU. Network throughput tops out at 1 Gbps. Storage options rely on the M.2 socket and any drives connected via the board’s internal headers.

How it compares

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

Price $24.99
Cheaper than about 95% of the 2,965 comparable items (median $97.99).

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Specifications

Product
Brand nameDELL
Processor
ProcessorCore i7 / i5 / i3 (LGA1151)
CPU socketLGA 1151
Memory
Memory slot count2 × 288pin (DDR4)
Supported memoryDDR4 2400
Max supported RAM16 GB
Storage
M.2 slots1 x M.2
Audio & video
Sound channels2.1 Channels
Connectivity
Maximum network speed1 Gbit/s
Ports & slots
PCIe 3.0 x16 slots1 x PCI Express 3.0 x16
PCIe x16 slots1 x PCI Express x16
Mini card slots1 x Mini PCI
Rear panel ports1 x HDMI / 4 x USB 3.0
Video connectors1
HDMI ports1 x HDMI
Ethernet port1 x RJ45
USB 3.0 ports4 x USB 3.0
Size & build
Form factorATX

Questions about this item

Will this motherboard fit a standard ATX case and align with the I/O cut-out?

The board uses the ATX form factor so it mounts in any ATX case, but the listing notes that no I/O shield is included so you will need to reuse the original shield or source a compatible one separately

Which processors can I install and what memory speed will they run at?

The LGA 1151 socket accepts 8th and 9th generation Core i7, i5 and i3 CPUs; the two 288-pin slots support DDR4 2400 up to a total of 16 GB

What expansion slots and rear ports are available for a graphics card and peripherals?

One PCI Express 3.0 x16 slot takes a graphics card, one PCI Express x16 and one Mini PCI slot provide additional expansion, while the rear panel offers one HDMI, one RJ45 and four USB 3.0 ports

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