DFI LanParty Jr. 790GX-M3H5 Motherboard


790GX-M3H5 Motherboard Specs

DFI 790GX-M3H5 Motherboard

The DFI LanParty Jr 790GX-M3H5 motherboard is a Socket AM3 mATX motherboard that features the AMD790GX northbridge paired with the AMD SB750 southbridge. The board is part of the LanParty series, and is geared to the enthusiast crowd. DFI made a splash when they first introduced their LanParty series of boards. They have been known to be great performers as well as great overclockers and have usually come with a pretty good bundle. We are all ready to dig in and find out just what this board has to offer, so let’s do it! First off, the specs!

DFI 790GX-M3H5 Motherboard Review

LANPARTY JR 790GX-M3H5 Specifications:


  • AMD Phenom II processor
  • HyperTransport 3.0 (5200MT/s) HyperTransport 1.0 (2000/1600MT/s)
  • AMD OverDrive provides tuning options using the new Advanced Clock Calibration overclocking feature.
  • Socket 938 AM3 45nm


AMD chipset

  • Northbridge: AMD 790GX
  • Southbridge: AMD SB750

System Memory

  • Four 240-pin DDR3 DIMM sockets
  • Supports DDR3 1600(O.C.)/1333/1066 MHz
  • Delivers up to 21Gb/s bandwidth at 1333MHz
  • Supports dual channel (128-bit wide) memory interface
  • Supports non-ECC unbuffered DIMMs
  • Supports up to 16GB system memory

Expansion Slots

  • 2 PCI Express (Gen 2) x16 slots
  • Hybrid CrossFireX
  • combination of the integrated graphics and a discrete graphics card in a PCIE slot (8-lane port).
  • Two graphics cards support CrossFireX; each operating at x8 (8-lane ports) bandwidth


  • Award BIOS
  • CMOS Reloaded
  • CPU/DRAM overclocking
  • CPU/DRAM/Chipset overvoltage
  • 8Mbit SPI flash memory


  • Integrated ATI Radeon HD 3300 graphics core
  • Onboard graphics interface
  • HDMI port for both digital audio and video HD display
  • DVI-I port for digital LCD display
  • Microsoft DirectX 10
  • Hybrid CrossFireX technology combines the onboard GPU and a discrete PCIE graphics card
  • Onboard Performance cache for added performance


  • Realtek ALC885 8-channel HD Audio Codec
  • High-performance DACs with 106dB dynamic range (A-Weight), ADCs with 101dB dynamic range (A-Weight)


  • Marvell 88E8056 PCIE Gigabit LAN controllers
  • Fully compliant to IEEE 802.3 (10BASE-T), 802.3u (100BASE-TX) and 802.3ab (1000BASE-T) standards

Serial ATA with RAID

  • Supports up to 6 SATA devices
  • SATA speed up to 3Gb/s
  • RAID 0/1/0+1(10)/5/JBOD/AHCI


  • One IDE connector allows connecting up to two UltraDMA 133Mbps hard drives

Rear Panel I/O

  • 1 mini-DIN-6 PS/2 mouse port
  • 1 mini-DIN-6 PS/2 keyboard port
  • 1 HDMI-out port
  • 1 coaxial RCA S/PDIF-out port
  • 1 optical S/PDIF-out port
  • 1 DVI-I port
  • 4 USB 2.0/1.1 ports
  • 1 RJ45 LAN port
  • Center/subwoofer, rear R/L and side R/L jacks
  • Line-in, line-out (front R/L) and mic-in jacks

Internal I/O

  • 4 connectors for 8 additional external USB 2.0 ports
  • 1 connector for an external COM port
  • 1 front audio connector
  • 1 CD-in connector
  • 1 IrDA connector
  • 1 CIR connector
  • 6 Serial ATA connectors
  • 1 40-pin IDE connector
  • 1 floppy connector
  • 1 24-pin ATX power connector
  • 1 8-pin 12V power connector
  • 1 4-pin 5V/12V power connector (FDD type)
  • 1 front panel connector
  • 6 fan connectors
  • EZ touch switches (power switch and reset switch)

Power Management

  • ACPI and OS Directed Power Management
  • ACPI STR (Suspend to RAM) function
  • Wake-On-PS/2 Keyboard/Mouse
  • Wake-On-USB Keyboard/Mouse
  • Wake-On-Ring
  • Wake-On-LAN
  • RTC timer to power-on the system
  • AC power failure recovery

Hardware Monitor

  • Monitors CPU/system/chipset temperature
  • Monitors 12V/5V/3.3V/Vcore/Vbat/5Vsb/Vdimm/Vchip voltages
  • Monitors the speed of the cooling fans
  • CPU Overheat Protection function monitors CPU temperature during system boot-up


  • microATX form factor
  • 24.5cm (9.64) x 24.5cm (9.64)
Let’s move on and take a look at the layout of the board!

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