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ASRock Z97 Extreme6 PCIe Ultra M.2 Storage Performance Overview

By: Chris Ramseyer | m.2 SSDs in Storage | Posted: Jun 2, 2014 1:00 pm

Desktop Test System




At this time, we do not have an Ultra M.2 SSD to test the full throughput of ASRock's implementation of it. The product doesn't exist in retail form at this time. We do have the next best thing, and it's a product you can purchase today. RamCity was kind enough to send us a Samsung XP941 at the start of the month for a review with a Bplus PCIe adapter that is required to achieve full PCIe 2.0 x4 bandwidth. The only way to use an XP941 at full speed without an adapter is to use an ASRock Extreme6.


I should also note that the ASRock Extreme6 is also the first retail motherboard that can use the Samsung XP941 as a boot device. There are a few hoops that you need to jump through in order to make that happen. If you already install Windows from a USB drive, the only hoop is turning off legacy storage devices in the operating system. This means changing a setting to UEFI only. This can affect some other system components like video cards. Some video cards have updated UEFI BIOS, but others don't. Check with your component manufacturer for updated UEFI BIOS updates.



ATTO - Baseline Performance


Version and / or Patch Used: 2.34




We've already tested the Samsung XP941 provided to us by RamCity with a Bplus M.2 to PCIe x4 adapter. The chart results today will show the original tests and the updated tests with the drive running in the Extreme6.


Right from the start, we see a small sequential write performance increase with the Extreme6's direct to CPU PCIe lanes. We were still not able to match Samsung's claimed sequential read performance of 1170 MB/s, but we did achieve 1081 MB/s. Our sequential writes topped at 1015 MB/s, a bit higher than Samsung's 950 MB/s claims.

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