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Item#: N82E16813136056

DFI LP JR 790GX-M2RS AM2+/AM2 AMD 790GX HDMI AMD Motherboard

  • AMD 790GX
  • Phenom / Athlon 64 X2 / Athlon 64 / Sempron
  • DDR2 800
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Learn more about the DFI LP JR 790GX-M2RS



Supported CPU

CPU Socket Type
CPU Type
Phenom / Athlon 64 X2 / Athlon 64 / Sempron
2600MHz Hyper Transport (5200 MT/s)


South Bridge


Number of Memory Slots
Memory Standard
DDR2 800
Maximum Memory Supported
Channel Supported
Dual Channel

Expansion Slots

PCI Express 2.0 x16
2 x PCI Express 2.0 x16
PCI Express x1
PCI Slots

Storage Devices

1 x ATA100 2 Dev. Max
SATA 3Gb/s

Onboard Video

Onboard Video Chipset
ATI Radeon HD 3300

Onboard Audio

Audio Chipset
Realtek ALC885
Audio Channels
8 Channels

Onboard LAN

LAN Chipset
Marvell 88E8056
Max LAN Speed

Rear Panel Ports

Video Ports
1 x HDMI
USB 1.1/2.0
4 x USB 2.0
1 x Optical, 1 x Coaxial
Audio Ports
6 Ports

Internal I/O Connectors

Onboard USB
3 USB header for 6 USB2.0 ports

Physical Spec

9.6" x 9.6"
Power Pin
24 Pin


Package Contents
Driver Disk
User Manual
Rear I/O Panel Shield
FDD Cable
SATA Cable
4-pin to SATA Power Cable

Manufacturer Warranty

3 years limited
1 year limited

Quick Info


  • Limited Warranty period (parts): 3 years
  • Limited Warranty period (labor): 1 year

Customer Reviews of the DFI LP JR 790GX-M2RS

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  • Mike L.
  • 5/21/2010 12:38:56 PM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week

5 out of 5 eggsLove it

Pros: Crossfire, SB750 = ACC, Good layout, all around good looking board

Cons: Tricky BIOS for new users, not recommended for a first build

Other Thoughts: I have a old AMD 5200+ that would only hit 3GHz on my old board. Plugged it in and now I'm at 3.4GHz (272x 12.5 @1.42 volts prime stable) Gave me something to play with till I get my new CPU

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  • adam j.
  • 5/13/2010 10:19:44 AM
  • Tech Level: Average
  • Ownership: 1 day to 1 week
  • Verified Owner

1 out of 5 eggsmobo doa

Pros: digital error code display is cool, and the other functions would be nice ... if it worked

Cons: dead board. The sata ports are very hard to get at I had to plug them in before I put the board in the case.

Other Thoughts: i am hopefully going to return this to newegg tomorrow and give DFI one more try. Specs for the board are just what im looking for if only it worked.

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  • heidi f.
  • 5/9/2010 12:00:03 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggslike a lanparty

Pros: Smokin' fast chipset. Price. layout. look. performance.

Cons: micro atx ff. Had to mod stand-off posts to fit my mid tower

Other Thoughts: Bought it to replace toasted board. So far it has performed marvelously.

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  • Brett L.
  • 4/9/2010 11:26:56 PM
  • Tech Level: High
  • Ownership: less than 1 day
  • Verified Owner

1 out of 5 eggsDon't Do It

Pros: The hardware specs for this mobo are impressive, and would be great if the board actually worked!

Cons: I got 2 bad board back to back...

Other Thoughts: First board I received was DOA, it flashed up error code 88 as soon as I turned it on. So, I did an RMA and got the second board a couple of days later. First time I turned it on it actually posted, so I was stoked. I went in and started to tweak the BIOS and then the graphics just kind of fizzled out my monitor turned in to snow. Turned everything off checked for loose connections, thinking it may be a fluke. Turned that bad boy back on and then the graphics snowed up again. I have no faith in this board and I was going to use it for a file server.. scratch that!!

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  • Rob L.
  • 3/6/2010 2:40:38 PM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggs18 months and going strong

Pros: This has been a solid board for me for a year and a half.

Cons: Agree with previous poster that internal SATA ports could have been better located. Tight fit for cables in my Zalman case, but not impossible. Suggest you take the board measurements and your case measurements and make sure you'll have adequate clearance.

Other Thoughts: My third DFI board and all have been good performers. No problems.

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  • Jonathon H.
  • 11/15/2009 10:47:37 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

3 out of 5 eggsGood for what I got...

Pros: Board works like it should. OC's stable once you set everything manually in bios. Crossfire is nice and it works. Nice bios options. 4 eggs for the board. 3 for newegg for sending me an Open Box one...

Cons: Keyboard PS/2 caused system crashes... replaced with USB and running fine. Paid for a NEW board and got a used one that was open with accessories opened as well... Needed the board so I installed it. After fighting with it a day or two I got it to run stable...

Other Thoughts: DFI does have great boards WHEN they want to work... I've owned 4 since 2004. All have been great OC'ers but they have all been a little bit of a fight to make work... All except my very first board - DFI 875Pro LanParty Intel socket 478. That thing ran forever and still lives in my brothers computer since 2005!

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  • Jeffrey B.
  • 10/15/2009 2:29:40 PM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

1 out of 5 eggsI Tell Ya Later

Pros: It is laid out nice.

Cons: Here we go: 1, The NB heatsink pushes against the stock AMD cooler 2, The preinstalled holes do NOT lineup with the brass standoffs on my case (Antec 900 Two). Tried another case (Cooler Master) with the same result. I e-mailed DFI tech support and begged for another i/o shield (I think that was the culprit).

Other Thoughts: I'll get back on this one.

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  • John F.
  • 10/11/2009 8:06:14 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsRMA trouble

Pros: Cross Fire (when the board works)
Intelligent cooling
Good power separation between vital components (CPU, NB, PCI-E bus

Cons: Apparently these boards dying with a F1, C1 or garbled debug code is common, check their dfi forum.

The abs concept is nice but nobody seemed to pick up on it. The goal as I understood it was to have some "guru" play with the 500 settings and tweak the system and be able to share that profile with others. DFI has a few examples on their site but 99% of users get the most out of their gigabyte boards anyway.

Other Thoughts: I've had two boards die on me now, one purchased Jan 09 the other March 09. RMA process at first seems paperwork heavy but quick... but once you submit the paperwork, the communication stops. I've heard this from other people as well at newegg and forums.

I wonder if this is an DFI-> AMD chipset thing. I own another JR p45 board and (cross my fingers) no problems... and great overclocking.

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  • ILYA A.
  • 9/1/2009 12:24:20 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year

4 out of 5 eggsNo support for Sempron 140

Pros: Great motherboard. One of the only matx motherboards that support crossfire. Worked great with Athlon II 250.

Cons: This motherboard does not support Sempron 140 AM3 CPU with the latest BIOS: 2009-08-20. It does power up and says Unknown CPU.

Other Thoughts: DFI needs to wakeup and update their BIOS again.
Hope to see matx SLI motherboard soon.

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  • Frank H.
  • 7/16/2009 8:23:59 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsdoa

Pros: do not buy this broad dfi sucks on rna. i have bin trying to rma for 2 weeks none and no response from dfi. i called the san jose number.still no rma number.i wouldnt buy a dfi broad its junk' its not newegg.its dfi

Cons: junk

1 out of 3 people found this review helpful. Did you? Yes No

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Item#: N82E16813136056
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