H87H3-M3 - Motherboard ECS - Free user manual and instructions
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| Product Type | Motherboard |
| Brand | ECS |
| Model | H87H3-M3 |
| Form Factor | ATX |
| Dimensions | 305 x 244 mm |
| Weight | Approx. 0.9 kg |
| Chipset | Intel H87 Express |
| CPU Socket | LGA 1150 |
| Supported CPU | 4th Generation Intel Core i7/i5/i3/Pentium/Celeron |
| Memory Type | DDR3 1333/1600 MHz |
| Maximum Memory | 32 GB (4 slots) |
| Storage Interface | 6 x SATA 3.0 (6 Gbps), 1 x mSATA |
| USB Ports | 4 x USB 3.0, 8 x USB 2.0 |
| Expansion Slots | 1 x PCIe 3.0 x16, 3 x PCIe 2.0 x1, 2 x PCI |
| Graphics Output | VGA, DVI-D, HDMI |
| Audio | Realtek ALC892 8-channel HD Audio |
| LAN | Realtek RTL8111G Gigabit Ethernet |
| Power Supply | 24-pin ATX, 8-pin CPU (12V) |
| Maintenance | Regular dust cleaning, avoid static discharge |
| Safety | Use ESD wrist strap, unplug power before installation |
| Repairability | Replaceable CMOS battery (CR2032) |
Frequently Asked Questions - H87H3-M3 ECS
What type of CPU does the H87H3-M3 support?
It supports Intel 4th generation Core i7/i5/i3, Pentium, and Celeron processors with LGA 1150 socket.
How much RAM can I install?
The motherboard has 4 DDR3 DIMM slots supporting up to 32 GB of memory at 1333/1600 MHz.
What expansion slots are available?
It features 1 PCIe 3.0 x16, 3 PCIe 2.0 x1, and 2 PCI slots.
Does it support multiple GPUs?
No, it has only one PCIe x16 slot; therefore, multi-GPU setups (SLI/CrossFire) are not supported.
How many SATA ports does it have?
There are 6 SATA 3.0 (6 Gbps) ports and 1 mSATA port.
How do I update the BIOS?
Download the latest BIOS from ECS website, copy to a FAT32 USB drive, and use the M-Flash feature in BIOS setup.
What are the onboard video outputs?
It provides VGA, DVI-D, and HDMI outputs for integrated graphics.
Is this motherboard compatible with Windows 10?
Yes, ECS provides drivers for Windows 7, 8, and 10 for this model.
How do I clear the CMOS?
Remove the CR2032 battery for 30 seconds or short the CMOS jumper with metal.
What is the warranty period?
ECS typically offers a 3-year limited warranty, but check your local distributor.
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USER MANUAL H87H3-M3 ECS
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Product information
Brand : ECS
Model : H87H3-M3
Category : Motherboard