GIGABYTE Z370 Gaming K3

The Z370 AORUS Gaming K3 motherboard fits in towards the bottom of the Gaming motherboards but has many of the features users need to be a solid gaming motherboard. Gone is the Killer E2500 NIC and replaced with an Intel I219-V chip. The back panel I/O adds a DVI output for onboard video connection but removes the OC button found on the Gaming 3. RGB Fusion support is still here along with RGBW headers, as well as keeping two M.2 slots. 

Between the Gaming 3 and K3 there are few design changes between them. The black PCB and Falcon make its appearance along with the four DIMM slots alternating red and black. The biggest design difference between the two is the lack of a shroud to cover the I/O area. This is a small cost saving measure at the expense of a clean look around back panel IO as well as the RGB LEDs being relegated to the audio separation line and the PCH heatsink. Additional RGB LED strips can be added using any of the four headers (2 RGBW, two digital) all controlled by the RGB Fusion software. 

The four memory slots and DDR4-4000 memory support matches the Gaming 3, and a capacity of up to 64GB is supported. The PCIe slot configuration is also the same as the Gaming 3, with four PCIe 1x slots fed from the chipset, and two full length, fortified slots running at x16/x4 with the x4 coming from the chipset. We again see Crossfire support, but not NVIDIA SLI. 

The board has six SATA ports, with four located to the right of the PCH heatsink, and two facing vertically just below it and to the right of the front panel headers. The two M.2 slots are also in the same location as the Gaming 3 and support the same size drives. These are located just above the top PCIe 1x slot and just above the bottom full-length PCIe slot. Onboard audio is still handled by the Realtek ALC1220 codec, is shielded for EMI, has audio separation from the rest of the board, and uses the WIMA and Nichicon audio caps. In a cost-saving measure, the board uses an Intel-based NIC instead of the Killer Networks E2500 found on the Gaming 3. WiFi is not found on this board either. Thunderbolt 3 support is handled with an add-in card as well. 

USB connectivity is a bit different here, at least on the USB 3.1 (5 Gbps) side. There are a total of eight possible USB 3.1 (5 Gbps) ports from four on the back panel and four available through internal USB headers. For USB2.0/1.1 there are six in total with two ports on the back panel and 4 ports available through the internal USB headers. The ASMedia 3142 controller handles the USB 3.1 (10 Gbps) Type-C and Type-A(red) ports found on the back panel. The back panel IO has a single PS/2 port, removes the OC button, and adds a DVI port. The audio stack does not have SPDIF. 

The Z370 AORUS Gaming K3 has a few cost-saving measures compared to the Gaming 3 such as swapping the Killer NIC for Intel, and removing the back panel IO shroud, and secures its place a bit lower in the product stack. While fully featured, the lack of SLI support will have those with multiple NVIDIA GPUs looking at other products in the stack for the necessary support. 

GIGABYTE Z370 Gaming 3 GIGABYTE Z370 Gaming WiFi


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  • EricZBA - Friday, October 20, 2017 - link

    The Asus Strix Z370-G mATX may be up on Amazon's website, but it has been Out of Stock ever since the page went up with no shipping date in sight. NewEgg Canada has it out of stock and NewEgg's US website doesn't even have a page for it. To call it available is inaccurate. Reply
  • Rubinhood - Friday, October 20, 2017 - link

    Coffee Lake & related hardware is the new Duke Nukem Forever :) Reply
  • xchaotic - Monday, October 23, 2017 - link

    Well, I am typing this on Asus Strix Z370 I + i5 8400 PC so not entirely vaporware. People may be whining but it seems that Intel can't keep up with the demand... Reply
  • piiman - Thursday, October 26, 2017 - link

    got an 8600k today at Newegg. They still have stock after 4 hours so it looks like they may be starting to get large shipments. I7 is still out of stock though Reply
  • imaheadcase - Saturday, October 21, 2017 - link

    Amazon is different than newegg, if it says Out of Stock, if you order it it will ship when it comes in stock. Sometimes it will be same day even or next day. Amazon will only show "This item is not available" if completely out of stock for foreseeable future. They do this because it stops items from completely selling out right away so supply can be steady. Reply
  • Morawka - Saturday, October 21, 2017 - link

    I have found that Asus treats USA customers like a red headed step child. They will send units to the UK, australia, and all of Europe before they will send 1 single board to the USA.

    Some advice: Start looking at Overclockers.UK and have it imported to the USA.. The $30 DHL International shipping is faster than USPS Priority Mail or UPS International Express Saver. No VAT tax either.

    This is what i had to do to get a Rampage VI Extreme. Newegg hasn't gotten a R6E in stock for 2 months after the initial release batch.
  • SpartanJet - Sunday, October 22, 2017 - link

    Does Asus USA cover warranty issues then since you bought it from UK? Reply
  • Xeres14 - Monday, October 23, 2017 - link

    Yeah I've been waiting on the Asus z370-g. I can't find an i7-8700k right now either so it's all right. Hopefully I'll be able to get both before Christmas (along with the rest of the upgrade). Reply
  • stuffwhy - Friday, October 20, 2017 - link

    This is so great. I find it increasingly difficult to find the right mainboard and this type of posting consolidates a lot of research time. Reply
  • SanX - Sunday, October 22, 2017 - link

    There are no "right" mobo here. Right future proof and super fast mobo has to be a dual-processor at least. Dual-SLI for example offers benefits for speed but in many cases the dual-chip is doing the same in simulations. Reply

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