ASRock are not afraid of the legacy connections.  Not merely content on having both a floppy drive header and an IDE connector on the Fatal1ty Z77 Professional, they have also put a floppy header on the Z77 Extreme6.  There is reason for this, given that industrial equipment can cost $millions and a shiny new PC to process the data costs a lot less, even if they can only communicate via Floppy.  Today we are looking at the performance and package that comes with the Z77 Extreme6, and see if it holds up with its price tag against the vast array of Z77 motherboards currently on the market.

ASRock Z77 Extreme6 Overview

Performance is an odd test on a motherboard for the most part.  Every major facet of the motherboard is often in the control of something else - the CPU takes care of computation, the RAM looks after local data management, the chipset for IO, and audio for audio.  The motherboard is merely the collection of controllers collated with design, with a vendor specific flair of aesthetics and software on top.  So why test the performance?

More often than not, in each of the circumstances listed above, the motherboard comes in as the second most important feature.  The routing between two components will determine the latency, or the decision to use one port per controller rather than two may influence throughput.  These differences do not show up significantly during testing (CPU tests, for example) unless the motherboard becomes the limiting factor in some regard.  This is why we try to test with the best CPU, the best memory, and so on.  However, areas such as the DPC Latency (how the CPU and chipset deal with requests) are governed by the BIOS, something that the motherboard directly influences.

Thus, if a motherboard happened to perform near the bottom in the majority of the tests is quite alarming - somehow, the board has a flaw at some level.  What if the difference between the board and the second from bottom board was very slight every time, coming in at less than 1%?  How would we analyze such a product?  Would it be bad?

Unfortunately, this is where the Z77 Extreme6 fits in many of our tests.  It lacks the MultiCore Enhancement that both ASUS and Gigabyte apply to their boards for extra MHz at full loading, as well as long-term stability with my standard G.Skill DDR3-2400 testing kit.

This is not a concern if you run an overclock though, as the Z77 Extreme6 board overclocks the CPU quite well, reaching 4.7 GHz on our test chip with 1.175 volts in the BIOS and only 82ºC during OCCT.

Software wise, ASRock has paired the Extreme6 with their normal feature set plus a couple of bonuses for Z77 - namely their Online Management Guard facility and 'Dehumidifier Function'.  These two lack significant substance by being only BIOS based utilities though - ideally, a software implementation would be preferred.

For the price, we get ASRock's great little USB 3.0 bracket in the box, as well as a complete set of video outputs on the IO.  As a sneaky little addition as well, users can put in three AMD GPUs for 3-way CFX, if you do not mind the third card limited to x4 PCIe 2.0 coming from the chipset (analyzed later in the review).  This does away with the need for a PLX PXE 8747 chip on board, which would have increased the price by another $30 or so.

The ASRock Z77 Extreme6 is a capable motherboard for most usage scenarios.  Just add some nice DDR3-2133 memory and apply a CPU overclock.  However, it lacks some substance and a spark over other major motherboard manufacturers.

Visual Inspection

With the Z77 Extreme6, compared to the Z77 Extreme4, there are a significant number of changes, both visual and in terms of features.  For a start, the heatsink design is more pronounced, using something similar to their X79 range in terms of black and gold ridged and edged surfaces.

Onboard is also an mSATA port, right in the middle between the first PCIe slot and the PCI slot.  Above the PCIe slots is a 4-pin molex power connector to provide extra power to the PCIe slots, although I am kind of getting tired of seeing it put in this location.  If anything, it should be at the bottom end or beside the 24-pin power connector, as having it above the PCIe slots just means that there will be cables all over the place.

One other less obvious change to the Z77 Extreme4 is that there is a Floppy drive header on board.  Yes, you heard me right – floppy drive!  It seems odd now to include this legacy connection.  It still has a place in industrial concepts (where a machine uses floppy drives and costs 1000x more than the PC processing its data), but not particularly on a higher end product which may be geared towards gaming and overclocking.  As ASRock seem to be the only manufacturer pursuing this path on their consumer line, then it creates a niche just for them.

In terms of fan headers on board, we have one three-pin beside the 8-pin 12V power connector, two CPU headers (one 4-pin, one 3-pin) just to the right of the top heatsink, two chassis three-pin headers beside the molex connector, and another 4-pin chassis header on the bottom of the board.  On the right hand side, the USB 3.0 connector has been placed beneath the 24-pin ATX power connector, followed by the SATA ports.  Like the Extreme4, we have the PCH SATA ports (two SATA 6 Gbps and four SATA 3 Gbps) and two extra SATA 6 Gbps from an ASMedia ASM1061 controller.

Around the larger chipset heatsink, we have power/reset buttons and a two digit debug display, both of which I personally like to see as a reviewer (makes my job a bit easier) but also helps overclockers. On the south side of the board, apart from that floppy connector I mentioned, we have a COM port, front panel audio, and an array of USB 2.0 headers.

PCIe layout is similar to the Z77 Extreme4, with a PCIe x1, PCIe 3.0 x16/x8, an mSATA connector, PCI, PCIe 3.0 x8, PCI, and a PCI 2.0 x4.  This allows a user to use a dual GPU setup, and still have access to a PCIe x1 and x4.

Aside from the bowed picture from ASRock, we have something similar to the Extreme4 for the IO back panel, though this time with a DisplayPort output.  From left to right, we have a combination PS/2 port, two USB 3.0 ports (blue), a D-Sub port, DVI-D, DisplayPort, HDMI, a ClearCMOS button, two USB 2.0 (red), an IEEE1394 port, eSATA, gigabit Ethernet, two more USB 3.0 (blue), and audio outputs including an optical SPDIF.

Board Features

ASRock Z77 Extreme6
Price Link
Size ATX
CPU Interface LGA-1155
Chipset Intel Z77
Memory Slots Four DDR3 DIMM slots supporting up to 32 GB
Up to Dual Channel, 1066-2800 MHz
Video Outputs DisplayPort, HDMI 1.4a, DVI-D, D-Sub
Onboard LAN Broadcom BCM57781
Onboard Audio Realtek ALC898
Expansion Slots 2 x PCIe x16 Gen3 (x16, x8/8)
1 x PCIe x16 Gen2 (x4)
1 x PCIe x1 Gen2
2 x PCI
1 x mini PCIe
Onboard SATA/RAID 2 x SATA 6 Gbps (PCH), Support for RAID 0, 1, 5, 10
2 x SATA 6 Gbps (ASMedia ASM1061)
4 x SATA 3 Gbps (PCH), Support for RAID 0, 1, 5, 10
USB Two USB 3.0 at rear (PCH)
Two USB 3.0 at rear (Etron EJ168A)
One USB 3.0 header (PCH)
Onboard 4 x SATA 6 Gbps
4 x SATA 3 Gbps
1 x Floppy Connector
1 x IR Header
1 x CIR Header
1 x COM Header
1 x SPDIF Header
1 x 4-pin Molex power connector
Power/Reset Buttons
Two Digit Debug LED
6 x Fan Headers
Front panel audio connector
3 x USB 2.0 headers (support 6 USB 2.0 ports)
1 x USB 3.0 header (supports 2 USB 3.0 ports)
Power Connectors 1 x 24-pin ATX connector
1 x 8-pin 12V connector
1 x 4-pin Molex for PCIe
Fan Headers 2 x CPU Fan Header (one 4-pin, one 3-pin)
3 x CHA Fan Headers (one 4-pin, two 3-pin)
1 x SYS Fan Header (one 3-pin)
IO Panel 1 x Combo PS/2 Port
1 x DisplayPort
1 x HDMI 1.4a
1 x DVI-D
1 x D-Sub
1 x Optical SPDIF
2 x USB 2.0
4 x USB 3.0
1 x IEEE1394
1 x Gigabit Ethernet
1 x Clear CMOS
Audio Outputs
Warranty Period 3 years from date of purchase
Product Page Link

Nothing immediately jumps out from the board features list aside from the differences to the Z77 Extreme4.  This is a quite good package for an MSRP of $175.

ASRock Z77 Extreme6 BIOS and Software
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  • nubie - Saturday, July 14, 2012 - link

    Yes, a COM port and Serial port are generally the same thing.

    I much prefer Parallel, because I am "bit-banging" to program an Atmega micro-controller, a I2C EEPROM, or an SPI EEPROM.

    Although I do have a couple Packard Bell Fast Media Infrared (FMIR) receivers that demand a COM port, as does the (sadly lacking drivers newer than Win98) 6-axis Spacetec Orb controller.
  • Meaker10 - Saturday, July 14, 2012 - link

    Without looking at the specs the mini slot is pci-e (for wifi) as it is half height and msata slots need to be full height.
  • repoman27 - Saturday, July 14, 2012 - link

    I thought one of the features of the Z77 chipset was that you could select between 1 x16, 2 x8, or 1 x8 + 2 x4 for the PCIe 3.0 lanes coming off of the CPU? In which case you wouldn't need an additional PCIe switch and all three cards would get at least 32 Gbps of PCIe bandwidth...

    Also, Ian, you seem to have some persistent dyslexia going on when it comes to the model names of PLX's PCIe switches; it's "PEX 8747", not "PXE 8747". There are other options available as well, such as the smaller, cheaper PEX 8724, which would have allowed them to offer effectively 3 x8 PCIe 3.0 slots.
  • scott967a - Saturday, July 14, 2012 - link

    Do you guys ever test wake on lan or other wake up functions? Reason being for the first time I thought I would set up an old sys using Abit P35 Pro for WoL with fail result. Not sure if it is operator error or MB/BIOS problem but searching online doesn't yield much info on WoL performance.
  • 529th - Sunday, July 15, 2012 - link

    Thank you for including a DPC latency test. Thank you Thank you Thank you! ha...

    Which app are you using to check DPC latency, btw?

    Please include DCP latency testings in your future Motherboard testings as well. I will be jumping on the Haswell wagon when it comes through town.

  • 529th - Sunday, July 15, 2012 - link

    And also include the BIOS that it's being tested on. Thanks :)
  • IanCutress - Sunday, July 15, 2012 - link

    As you can perhaps tell from our DPC Graph, we've been testing it quite a while. And in the explanation of said test, I do mention the program I use - DPC Latency Checker. Quick Google will find it. Currently I'm rarely finding a motherboard on a mainstream chipset that severely fails it - usually it is the included monitoring software that causes peaks of 2000+. If this happens, disable your monitoring software or update the BIOS.

  • hansmuff - Sunday, July 15, 2012 - link

    If I were to release a legacy connector board, I would most certainly at the very least have two serial ports in the back, or one plus header. I would also most certainly include a parallel port header on the motherboard, and include brackets for serial and parallel headers.

    Floppy and IDE is all good and well, but one serial port and no parallel port are oversights to me for such a board.
  • adrianlegg - Monday, July 16, 2012 - link

    I just had some random idea,

    Couldn't You use, some kind of electric stopwatch, which can be started/paused with any current, connect it to poweron wire (from button), and then instead of using Windows, use some custom linux bootloader with option to, for example, use pc speaker, which signal would be used to stop mobo?
    I lack proper knowledge to design that system, aside from components (2 wires, custom bootloader, and stopwatch/some multimeter with time option)

    Excuse me if that's completely ignorant, but I think that could increase precision of Your timings.

    Thx for all good work.
  • adrianlegg - Monday, July 16, 2012 - link

    (ofc not "stop mobo" but "stop timing")

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