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HP Customer Support - Knowledge Base

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Information

Need Windows 11 help?
Check the information on compatibility, upgrade, and available fixes from HP and Microsoft. Windows 11 Support Center

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HP and Compaq Desktop PCs - motherboard specifications, Hamar

Figure : The Hamar motherboard

Motherboard description

HP/Compaq name: Hamar
SSID: 81B4

Form Factor

uATX
Dimensions: 20.5x22.0 cm (8.1x8.7 in)

Chipset

H170

Processor upgrade information

TDP: 35 W
Socket type: LGA 1151

Motherboard supports the following processor upgrades:

Processor	TDP	Integrated Graphics
Intel Core i7-6700T (Skylake) 2.8 GHz Quad Core	35 W	Intel HD Graphics (GT2)
Intel Core i5-6400T (Skylake) 2.2 GHz Quad Core	35 W	Intel HD Graphics (GT2)
Intel Core i3-6100T (Skylake) 3.2 GHz Dual Core	35 W	Intel HD Graphics 530
Intel Pentium G4400T (Skylake) 2.9 GHz	35 W	Intel HD Graphics 510
Intel Celeron G3900T (Skylake) 2.6 GHz	35 W	Intel HD Graphics 510

Memory upgrade information

Dual channel memory architecture
Two DDR4 UDIMM (288-pin) sockets
Supports up to PC4-17000 (DRR4-2133)
Supports 2 GB, 4 GB, and 8 GB UDIMMs
Supports up to 4 GB on 32-bit systems

note:
32-bit systems cannot address a full 4.0 GB of memory.
Supports up to 16 GB (unbuffered) on 64-bit computers

note:
Maximum memory shown reflects the capability of the hardware and can be limited further in the operating system.

Video

Integrated graphics

Integrated Intel HD Graphics

note:
Integrated graphics does not work if a graphics card is installed.

Audio

Integrated audio

Audio Codec: ALC3863-CG
Audio jack presence detection

note:
An internal speaker is not included with integrated audio. External speakers or headphones are required to hear sound.

note:
Integrated sound is not available if a graphics card is installed.

Network

LAN: 1000BASE-T

Technology: Realtek RTL8161
Data transfer speeds: up to 10/100/1000 Mb/s
Transmission standards: 1000BASE-T Ethernet

Expansion Slots

One PCI-E (GEN 3) x16 socket
One M.2 socket 1, key A

I/O Ports and Jumpers

Back I/O ports

note:
The configuration might differ depending on your model (for example, if a dedicated graphics card is included). Any modifications or upgrades might change the configuration, port accessibility, and port functionality.

Figure : Hamar back I/O panel

VGA

HDMI out

USB 3.0: 2

USB 2.0: 2

LAN (Ethernet)

Audio: Line in

Audio: Line out

Audio: Microphone

Jumpers

Figure : Clear CMOS and clear password jumper location

PSW bridged (closed) = Default state (password enabled)
PSW unbridged (open) = Password cleared on startup
SW_CMOS unbridged (open) = Default state
SW_CMOS bridged (closed) = CMOS reset to default settings during next restart

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Country/Region: Flag

United Kingdom

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