ASRock Z97 Extreme6 Review: Ultra M.2 x4 Tested With XP941

Many thanks to...

We must thank the following companies for kindly providing hardware for our test bed:

• Thank you to OCZ for providing us with PSUs and SSDs.
• Thank you to G.Skill and ADATA for providing us with memory kits.
• Thank you to Corsair for providing us with an AX1200i PSU, Corsair H80i CLC and DRAM.
• Thank you to ASUS for providing us with the AMD HD7970 GPUs and some IO Testing kit.
• Thank you to MSI for providing us with the NVIDIA GTX 770 Lightning GPUs.
• Thank you to Rosewill for providing us with PSUs and RK-9100 keyboards.
• Thank you to ASRock for providing us with some IO testing kit.

Test Setup

Power Consumption

Power consumption was tested on the system as a whole with a wall meter connected to the OCZ 1250W power supply, while in a single MSI GTX 770 Lightning GPU configuration. This power supply is Gold rated, and as I am in the UK on a 230-240 V supply, leads to ~75% efficiency > 50W, and 90%+ efficiency at 250W, which is suitable for both idle and multi-GPU loading. This method of power reading allows us to compare the power management of the UEFI and the board to supply components with power under load, and includes typical PSU losses due to efficiency. These are the real world values that consumers may expect from a typical system (minus the monitor) using this motherboard.

While this method for power measurement may not be ideal, and you feel these numbers are not representative due to the high wattage power supply being used (we use the same PSU to remain consistent over a series of reviews, and the fact that some boards on our test bed get tested with three or four high powered GPUs), the important point to take away is the relationship between the numbers. These boards are all under the same conditions, and thus the differences between them should be easy to spot.

Long idle and idle power consumption are relatively normal for the Z97 Extreme6, although the load power consumption is 10-20W higher than the other motherboards listed here. We have another motherboard tested but not written up yet which also shows the same as the ASRock though, indicating there may be some power saving implemented on some motherboards but not others, or more fundamental efficiency differences due to components.

Windows 7 POST Time

Different motherboards have different POST sequences before an operating system is initialized. A lot of this is dependent on the board itself, and POST boot time is determined by the controllers on board (and the sequence of how those extras are organized). As part of our testing, we are now going to look at the POST Boot Time - this is the time from pressing the ON button on the computer to when Windows 7 starts loading. (We discount Windows loading as it is highly variable given Windows specific features.)  These results are subject to human error, so please allow +/- 1 second in these results.

Like some of the other Z97 motherboards, the default POST time extends to almost 20 seconds. However when stripped of the extra controllers, the Z97 Extreme6 is a very impressive 6.9 seconds.