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HP and Compaq Desktop PCs - Motherboard Specifications, AAHD2-HY (Holly2)

Figure : The Holly2 motherboard

Motherboard description

Manufacturer's name: Pegatron
Motherboard name: AAHD2-HY
HP/Compaq name: Holly2

Form Factor

uATX: 24.4 cm (9.6 inches) x 24.4 cm (9.6 inches)

Chipset

AMD A55

Front-side bus speed

100 MHz UMI (Unified Media Interface)

Processor upgrade information

65W to 100W (processor dependent)
Socket type: FM1

Motherboard supports the following processor upgrades:

Processor	TDP
AMD A8-3xxx (Liano) quad core	65W to 100W
AMD A6-3xxx (Liano) quad core	65W to 100W
AMD A4-3xxx (Liano) dual core	65W
AMD E2-3200 (Liano) dual core	65W
AMD X4-631 (Athlon) quad core	65W

Memory upgrade information

Dual channel memory architecture
Two 240-pin DDR3 DIMM sockets
Supports DDR3 DIMMs
- PC3-10600 (DDR3-1333)
- PC3-12800 (DDR3-1600)
- PC3-14400 (DDR3-1866)
Non-ECC memory only, unbuffered
Supports 1 GB, 2 GB or 4 GB DIMMs
Supports up to 4 GB on 32-bit* systems
Supports up to 8 GB on 64-bit systems

note:
32-bit systems cannot address a full 4.0 GB of memory

Video

Integrated Graphics

*Integrated video is not available if a graphics card is installed.

Supports PCI Express x16 graphics cards
DVI and VGA ports (Can be used at the same time)

The integrated graphics differ by processor.

Model	Radeon graphics brand	TDP
AMD A-Series Processors
A8-3850	HD 6550D	100W
A8-3800	HD 6550D	65W
A6-3650	HD 6530D	100W
A6-3600	HD 6530D	65W
A4-3400	HD 6410D	65W
AMD E-Series Processors
E2-3200	HD 6370D	65W

Audio

Integrated Realtek ALC 656 Audio

*Integrated audio is not available if a sound card is installed.

Built-in High Definition 5.1 channel audio
Audio codec: Realtek ALC 656

Network

LAN: 1000-Base-T

Interface: PCI Express x1
Technology: Realtek RTL8171E gigabit ethernet controller
Data transfer speeds: up to 10/100/1000 Mb/s
Transmission standards: 1000-Base-T Ethernet

Expansion Slots

One PCI Express x16 (Gen 2.0)
Three PCI Express x1 (Gen 2.0)
One PCI Express mini card

I/O Ports and internal connectors

Back I/O ports

Figure : Back I/O panel

DVI-D

VGA

USB 2.0: 4

LAN

Audio: Line In port (light blue)

Audio: Line Out port (lime)

Audio: Microphone port (pink)

Internal Connectors

1x ATX power
1x ATX CPU power
1x CPU FAN
1x System FAN
6x SATA 2.0
4x USB 2.0
1x ROM recovery
1x Internal SPDIF output
1x Front panel audio
1x Chassis speaker
1x FDO
1x LPC debug
1x Front panel

Jumper Settings

caution:
Do not change any jumper setting while the computer is on. Damage to the motherboard can result.

Clearing the CMOS settings

This motherboard has a jumper to clear the Real Time Clock (RTC) RAM in CMOS.

Turn OFF the computer and unplug the power cord.
Move the jumper to clear for 5 to 10 secs, then move the jumper back to default.
Plug the power cord and turn ON the computer.
On the next startup, enter BIOS setup to re-enter user settings.