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ASUS Z170-A Motherboard: The $165 Focal Point

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In the world of technology, you could speculate if there is ever a golden age, or a renaissance. All the time we expect technology to grow and improve, being better than the last. Sometimes there is nostalgia, but it never stops us using the latest because it provides the user experience we expect at a minimum. Like all the motherboard manufacturers, I’ve followed ASUS for years, and observed their constant iteration as platforms evolve. The newest Skylake platform is upon us, and we review the ASUS Z170-A motherboard to see their interpretation of the desktop this generation.

The motherboard industry has gone through years of consolidation and enhancement, making it very difficult for new companies to emerge. There is strong competition, profit margins are low, and there is a bare minimum expectation of utility. This is seen by the continual march on gaming branded motherboards, if only for SEO, or marketing label enhancements. Aside from ASUS’ Republic of Gamers brand, the channel line from ASUS remains free of the gaming SEO and promotes itself as a platform bundled with their self-proclaimed value additions, which can be condensed into ‘design, user requested software tools and user experience’. ASUS is not alone in this push, which makes the Z170-A an important part of ASUS’ product offering. At $165, it aims at a price point that end-users and system integrators alike will use for the majority of their i5 and i7 systems.

The ASUS Z170-A Motherboard Review: The $165 Focal Point

On the face of it, looking at the base hardware add-ons, the Z170-A comes in with a fair amount of what you expect at this price. Networking is the Intel I219-V controller, there is a single PCIe 3.0 x4 based M.2 slot, two USB 3.1 ports at 10 Gbps is provided by an ASMedia ASM1142 controller in both Type-A and Type-C formats, and the PCIe layout promotes two-way graphics with a tertiary PCIe 3.0 x4 slot from the chipset so SLI is not disrupted. One thing to note is the use of a Realtek ALC892 codec, which is perhaps a little surprising as there will be other motherboards around this price point that have the ALC1150.

ASUS’ marketed unique points include their onboard ICs to aid overclocking (TPU) and power (EPU), along with an onboard switch to help enable XMP on a memory kit without going into the BIOS. Building on this is a Pro-Clock IC that extends the overclocking range in the base frequency and a T-Topology memory trace design typically reserved for maintaining the high end desktop platform signal integrity (but is optional on Z170). The BIOS and software from ASUS has historically been positive, and we see this as a continuing trend with Skylake.

We worked with the Z170-A for part of our Skylake CPU coverage, as added information and BIOSes from ASUS on elements such as the FCLK issue and PCIe performance. The Z170-A, for the BIOSes tested, did not have multi core turbo but did give a 4.8 GHz overclock both in automatic and manual modes.

The ASUS Z170-A Motherboard Review: The $165 Focal Point

The $160-$170 price band will be hotly contested for both self-build and retailer pre-built designs. Here ASUS executes well with plenty of positives. For regular and power users, unless you want two M.2 devices or dual network ports, this board seems ideal for a shortlist.

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Experience with ASUS Z170-A

The Z170-A was the second motherboard we tested as part of the initial Skylake routine, partly due to the discussions we had behind some of the discrete PCIe co-processor performance on the Z170 platform. For overclocking, while the previous motherboard we had tested seemed happy moving around at 4.6 GHz for an overclock, the ASUS Z170-A went straight in at 4.8 GHz, no questions asked. It was quite a difference.

Through the Automatic overclock tool, we let it run and set a temperature limit of 90C for the intermediate stress testing, with each stress test lasting two minutes. I came back to the system about 15 minutes later to see the final results screen show the 4.8 GHz value. We validated this speed and it passed all of our tests, except video encoding. (We discussed the principles of stability in our Skylake overclock testing piece and suffice to say, there are two major camps on the issue.) The TPU Switch gave a good set overclocks as well, with the first stage giving 4.3 GHz/4.1 GHz split for +100 MHz (mild), and the second stage going up to 4.6 GHz on a single core turbo.

For manual overclocking, the results were almost the same, although we were able to get the same frequencies at a lower voltage and power which might be expected. We went for 4.9 GHz as well, but this failed regardless of voltage causing POV-Ray to crash and the system to bluescreen.

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Methodology

Our standard overclocking methodology is as follows. We select the automatic overclock options and test for stability with POV-Ray and OCCT to simulate high-end workloads. These stability tests aim to catch any immediate causes for memory or CPU errors.

For manual overclocks, based on the information gathered from previous testing, starts off at a nominal voltage and CPU multiplier, and the multiplier is increased until the stability tests are failed. The CPU voltage is increased gradually until the stability tests are passed, and the process repeated until the motherboard reduces the multiplier automatically (due to safety protocol) or the CPU temperature reaches a stupidly high level (100ºC+). Our test bed is not in a case, which should push overclocks higher with fresher (cooler) air.

Overclock Results

The ASUS Z170-A Motherboard Review: The $165 Focal Point

The ASUS Z170-A Motherboard Review: The $165 Focal Point

Source: anandtech.com

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9 thoughts on “ASUS Z170-A Motherboard: The $165 Focal Point

  1. I believe you meant “front” USB 3.1 panel instead of “font” in the conclusion.

  2. Just wish some of them would drop the VGA/DVI sockets. Hate having legacy stuff I'll never use, bad enough with built in audio.

  3. My board of reference in this price bracket is the ASRock Z170 Extreme4. It offers a bit more for the same money.

  4. I have Asus LGA1150 boards with add-on Infineon TPM 1.2 modules. I take it these are not the same then? Is this new pinout for TPM 2.0 modules?

  5. FYI, as of this post, the 14-1 pin TPM connector has no part that can fit it. So in order to do bitlocker on your system drive, you will need a password or usb drive to access the drive on boot.

  6. Ooh. I like the “Other AnandTech Reviews for Intel’s 6th Generation CPUs” inset.

  7. It isn't a trend of Asus. This is industry-wide. There is no longer a need for 10 layer PCB's. With so much integrated into the CPU and everything being such low power, most reference designs are only 4-6 layers thick anymore. All of these first-out products are heavily based on, if not nearly identical too, the chipset reference. In a few months we may start seeing more “creative” boards of higher caliber.

  8. Sadly, that may be a trend for ASUS's lower end stuff—the Z97-E I picked up a while back had a flimsy-feeling PCB, and slightly loose SATA connector housings. Havent had a single problem with it yet, but that cheap feeling is not exactly a great first impression.By contrast, the similarly-priced Z97X-Gaming 7 from Gigabyte I bought for my other Intel box felt much sturdier.

  9. This is the MB I bought for my new Skylake system. Always had good luck with ASUS in the past, and it's performed well so far with no issues noted (crosses fingers).Only complaint (and it's not really a fault) is it feels a little “flimsy/flexible”, as if the board itself wasn't as thick as it could be. Couple with a Dark Rock Pro 3 heatsink in a tower case, and suddenly there's a lot of stress on the MB causing it to flex from the weight of the heatsink. Remedied this by making a small custom bracket from the sink to my case to take some of the weight off.

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