Gigabyte GA-Z77MX-D3H—Visual Inspection

In a twist to the previous motherboards, Gigabyte sent us a micro-ATX sample, the GA-Z77MX-D3H. While still a Z77 product, capable of dual GPU setups, we have a motherboard aimed at the cheaper end of the spectrum. This is shown with what looks like a 4 + 2 VRM power delivery, and the relatively small sized heatsinks. We are also limited in terms of fan headers (three), and rear panel USB 3.0 ports (only two) compared to the Z77X-UD3H WiFi bigger brother.

The socket itself is clean with little obstructions—fan headers are found below the VRM heatsink, where we have two of the 4-pin variety. The other fan header on board can be found at the bottom next to the TPM.

Despite being a cheaper small motherboard, we still have typical Gigabyte features, such as dual BIOSes next to the USB 3.0 header underneath the 24-pin ATX power connector, but only the SATA ports from the PCH. This means two SATA 6 Gbps and three SATA 3 Gbps. The chipset heatsink is also small but has enough surface area to keep Gigabyte confident of its functionality.

The south side of the board is relatively naked, with a front panel audio, fan header, TPM and two USB 2.0 headers. Given the look of the board and that it does not display many potential features (presumably to fit into a price bracket), I was not expecting anything elaborate such as power/reset buttons.

The PCIe layout is aimed at users wanting dual GPUs or users needing an extra PCIe device alongside their GPU. The PCIe layout becomes x16 (x8 on dual GPU), x1, x8, x4, with this final x4 only being PCIe 2.0.

The rear IO panel is more substantial than I assumed, which can only be a good thing. From left to right we have a pair of USB 2.0 (black), a combination PS/2 port, D-Sub, DVI, two USB 3.0 (blue), HDMI, four more USB 2.0 (black), gigabit Ethernet, and standard audio jacks with a combination optical SPDIF output.

Board Features

Gigabyte GA-Z77MX-D3H
Size mATX
CPU Interface LGA-1155
Chipset Intel Z77
Power Delivery TBC
Memory Slots Four DDR3 DIMM slots supporting up to 32 GB
Up to Dual Channel, 1066-1600 MHz
Video Outputs HDMI, DVI-D, D-Sub
Onboard LAN Atheros
Onboard Audio Via VT2021
Expansion Slots 2 x PCIe x16 Gen3 (x16, x8/8)
1 x PCIe x16 Gen2 (x4)
1 x PCIe x1 Gen2
Onboard SATA/RAID 2 x SATA 6 Gbps (PCH), Support for RAID 0, 1, 5, 10
4 x SATA 3 Gbps (PCH), Support for RAID 0, 1, 5, 10
USB 4 USB 3.0 ports (2 back panel, 2 from headers)
10 USB 2.0 ports (6 back panel, 4 from headers)
Onboard 4 x SATA 3 Gbps
2 x SATA 6 Gbps
3 x Fan Headers
1 x Front Panel Header
1 x Front Audio Header
1 x SPDIF Output Header
1 x USB 3.0 Header
2 x USB 2.0 Headers
1 x TPM
Power Connectors 1 x 24-pin ATX connector
1 x 8-pin 12V connector
Fan Headers 1 x CPU Fan Header (4-pin)
2 x SYS Fan Headers (4-pin)
IO Panel 1 x PS/2 Combo Port
1 x D-Sub
1 x DVI-D
1 x HDMI
2 x USB 3.0
6 x USB 2.0
1 x Gigabit Ethernet
1 x Optical SPDIF
Audio Jacks
Warranty Period 3 Years
Product Page Link

As with the Gigabyte Z77X-UD3H WiFi, this Z77MX-D3H comes with an Atheros/Via network and audio combination. Given the lack of features on the main area of the board due to the size and the audience this product is aiming for, it seems good if all you want is a stock processor and a working Ivy Bridge system with no frills.

Gigabyte GA-Z77X-UD3H Wifi MSI Z77A-GD65
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  • DanNeely - Monday, April 9, 2012 - link

    This is similar to what happened with the USB1->2 transition. The newer controller is significantly bigger (read more expensive) and very few people have more than one or two devices using it per computer. I suspect the 8x (Haswell) chipset will be mixed as well; simply because the total number of ports on the chipset is so much higher than it was a decade ago (vs older boards were all but the lowest end models added more USB from 3rd party controllers).
  • ASUSTechMKT - Monday, April 9, 2012 - link

    mSATA currently has very little penetration on the market and cost wise it is much lower to purchase a larger cache SSD for the same or lower cost. We would prefer to focus on bringing implementations that offer immediate value to users.

    As for the Intel nics all our launch boards across the board for ATX ( Standard and above all feature Intel lan ) we have been leading in this regard for a couple of generations.

    In regards to USB 3 we offer more than the standard on many boards but keep in mind many users only have 1 USB3 device.
  • jimnicoloff - Sunday, April 8, 2012 - link

    Maybe I missed something from an earlier post, but could someone please tell me why these don't have light peak? Are they waiting to go optical and it is not ready yet? Having my USB3 controlled by Intel instead of another chip is not enough to make me want to upgrade my Z68 board...
  • repoman27 - Sunday, April 8, 2012 - link

    Thunderbolt controllers are relatively expensive ($20-30) and their value is fairly limited on a system using a full size ATX motherboard that has multiple PCIe slots. Including two digital display outputs, an x4 and a couple x1 PCIe slots on a motherboard provides essentially all the same functionality as Thunderbolt but at a way lower cost.
  • ASUSTechMKT - Monday, April 9, 2012 - link

    Almost all of our boards feature a special TB header which allows for you to easily equip our boards with a Thunderbolt add on card which we will release at the end of the month. Expect an approximate cost of $40 dollars, this card will connect to the TB header and install in a X4 slot providing you with Thunderbolt should you want it. A great option for those who want it and for those who do not they do not pay for it.
  • DanNeely - Tuesday, April 10, 2012 - link

    Sounds like a reasonable choice for something that's still rather expensive and a very niche product.

    Am I correct in thinking that the mobo header is to bring in the DisplayPort out channel without impacting bandwidth available for devices?
  • jimwatkins - Sunday, April 8, 2012 - link

    I've made it this far on my venerable OC Q6600, but I can't wait any longer. I do wish they weren't so stingy on the 6 core as I could use it, but I just can't justify the price differential (w 3 kids that is.)
  • androticus - Sunday, April 8, 2012 - link

    USB 3.0 descriptions and depictions are contradictory. The platform summary table says there are 4. The Intel diagram shows up to 4 on front and back (and the diagram is itself very confusing, because there are 4 USB 3.0 ports indicated on the chipset, and then they show 2 going to hubs, and 2 going directly to the jacks.) The text of the article says there can only be 2 USB 3.0 ports.

    What is the correct answer?
  • mariush - Sunday, April 8, 2012 - link

    I think there's 2 real ports (full bandwidth ports) and the Intel solution uses 2 additional chips that act like "hubs", splitting each real port into 4 separate ports.

    Basically the bandwidth of each real port gets split if there are several devices connected to the same hub.

    Hub as far as I know means that what the hub receives sends to all four ports (and then the devices at the end of each port ignore the data if it's not for them).
    This would be different than a switch, which has the brains to send the data packages only to the proper port.
  • plamengv - Sunday, April 8, 2012 - link

    DZ77GA-70K makes DX79SI looks like a bad joke (which it is really).

    LGA 2011 turns into an epic fail and DZ77GA-70K is the proof. I have 1366 system and I have zero will to get LGA 2011 system thanks to the crappy tech decisions somebody made there. Six cores is the top? Again? An old 32nm process? Really? Chipset with nothing new inside but troubles? Since 1366 something strange is going on and Intel fails to see it. The end user can get better manufacturing tech for the video card than for the CPU. First it was 45nm CPU with 40nm GPU and now 28nm GPU and 32nm CPU and Intel call that high end? Really?

    Everything that DX79SI should have been you can find inside DZ77GA-70K.

    1. DZ77GA-70K has high quality TI 1394 firewire controller, while DX79SI has cheap VIA one that no any audio pro would ever want to deal with.
    2. DZ77GA-70K has next best after Intel SATA controller by Marvell to get 2 more SATA 6.0 and eSATA vs zero extra SATA and hard to believe no any eSATA on DX79SI.
    3. Intel USB 3.0 vs crappy Renesas.

    DZ77GA-70K has everything to impress, including the two Intel LANs vs the Realtek that everyone else is using.

    DZ77GA-70K fails in only one thing - it had to be LGA 2011, not 1155 that will be just 4 cores like forever and has zero future.

    Wake up INTEL!

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