Z77A-GD55/ Z75A-GD55 series

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MSI Z77A-GD55/ Z75A-GD55 series MS-7751 (v1.x) Mainboard

Download user manual in PDF format: z77a-gd55

Intel® Z77 Chipset Based

• Military Class III components: Top quality & stability
• OC Genie II: Auto OC to boost performance in 1 sec
• ClickBIOS II: Easy-to-use UEFI BIOS interface
• Super Charger: fast charge iPad/iPhone/smartphone
• THX TruStudio PRO: deliver the fullest audio experience
• Support USB 3.0 & SATA 6Gb/s

CPU

• Supports 3rd Gen Intel® Core™ i7 / Core™ i5 / Core™ i3 / Pentium® / Celeron® processors for LGA 1155 socket
Please refer to CPU Support for compatible CPU; the above description is for reference only.

Chipset

• Intel® Z77 Chipset

Main Memory

• Support four DDR3 DIMMs 2667*(OC)/ 2400*(OC)/ 2133*(OC)/ 1866*(OC)/1600/ 1333/ 1066 DRAM (32GB Max)
– Supports Dual-Channel mode

Slots

• 2 x PCIe 3.0 x16 slots
• 1 x PCIe 2.0 x16 slot
– PCI_E7 supports up to PCIe 2.0 x4 speed (when PCI_E3 or PCI_E6 is empty) or PCIe 2.0 x2 speed (when PCI_E3 or PCI_E6 is installed).
• 4 x PCIe 2.0 x1 slots

On-Board SATA

SATAII controller integrated in Intel® Z77 chipset
– Up to 3Gb/s transfer speed.
– Supports four SATAII ports (SATA3~6) by Z77

SATAIII controller integrated in Intel® Z77 chipset
– Up to 6Gb/s transfer speed.
– Supports two SATAIII ports (SATA1~2) by Z77

• RAID
– SATA1~6 support Intel® Rapid Storage Technology enterprise (AHCI/ RAID 0/ 1/ 5/ 10) by Intel® Z77

USB 3.0

• 2 x USB 3.0 rear IO ports by Intel® Z77
• 1 x USB 3.0 onboard connector by Intel® Z77

Audio

• Chipset integrated by Realtek® ALC892
– Flexible 8-channel audio with jack sensing
– Compliant with Azalia 1.0 Spec

LAN

• Supports one PCI Express LAN 10/100/1000 Fast Ethernet by Intel® 82579V.

Multi-GPU

• Supports ATI® CrossFire™ Technology
• Supports NVIDIA® SLI™ Technology

Internal I/O Connectors

– ATX 24-Pin power connector
– 8-pin ATX 12V power connector
– CPU x 1 / System x 4 FAN connectors
– 1 x Clear CMOS jumper
– 2 x Serial ATAII connectors
– 4 x Serial ATAIII connectors
– 3 x USB 2.0 connectors
– 1 x USB 3.0 connector
– 1 x TPM Module connector
– 1 x Front Panel Audio connector
– 1 x Front Panel connector
– 1 x Chassis Intrusion connector
– 1 x Voice Genie connector (optional)
– 1 x MultiConnect Panel connector (optional)
– 1 x V-Check Points Set (optional)
– 1 x Power button
– 1 x Reset button
– 1 x OC Genie button

Back Panel I/O Ports

– 1 x PS/2 keyboard/ mouse port
– 1 x Clear CMOS button
– 1 x Coaxial S/PDIF-out port
– 1 x Optical S/PDIF-out port
– 4 x USB 2.0 ports
– 2 x USB 3.0 ports
– 1 x RJ45 LAN Jack
– 1 x 6 in 1 audio jack
– 1 x HDMI® port with max. resolution up to 1920×1200 @60Hz
– 1 x DVI-D port with max. resolution up to 1920×1200 @60Hz
– 1 x VGA port with max. resolution up to 2048×1536 @75Hz

MSI Reminds You…
• HDMI, DVI-D & Graphics Card ports support dual-display function by any two output ports (HDMI+DVI,DVI+VGA or VGA+HDMI).
BIOS

• The mainboard BIOS provides “Plug & Play” BIOS which detects the peripheral devices and expansion cards of the board automatically.
• The mainboard provides a Desktop Management Interface(DMI) function which records your mainboard specifications.

Dimension

• 30.5cm(L) x 24.5cm(W) ATX Form Factor

Mounting

• 9 mounting holes.

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