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Z270 Taichi M.2 Ports
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vst View Drop Down
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    Posted: 09 Feb 2017 at 8:13pm
Direct Link To This Post Topic: Z270 Taichi M.2 Ports
    Posted: 6 minutes ago at 7:16pm Hi, I have z270 taichi. Motherboard is detecting patriot hellfire 240Gb PCIx4 ssd only in port M2_2. Drive is not visible in M2_1 and M2_3.
I've tried almost everything. I'm aware that M2 ports is sharing lanes with SATA ports, even I removed the PCI graphic card.

My boot settings in CSM is Uefi only.
Advanced - storage configuration is Intel optane RAID (there is only AHCI or that RAID -with the AHCI also wont detect).
There is also option of remapping M2 ports. I've tried with enabled and disabled.

In M2_2 everything works like a charm. 3 seconds boot time and Win10 works perfectly.

Anyone knows if should I wait for new bios release or this is a mobo failure. I have 2 days to give it back.

Thanks for the answer.
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I am having the same issue please let me know how you fixed it shaun3883@msn.com
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Originally posted by shaun3883 shaun3883 wrote:

I am having the same issue please let me know how you fixed it shaun3883@msn.com


How do you know the OP fixed his issue, or did he have a bad board?

If you care to post a better description of your problem, and what M.2 SSD you are trying to use, then we may be able to help you.
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Sorry I don't know if it was fixed. I don't know if he rma'ed.
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I am using ocz rd400 m.2 SSD 512gb. I have one working with win 10 in the m.2 #2 slot but cannot get either SSD working in #3 or #1 in either BIOS or windows. I even populated the second m.2 via an PC express adapter and it still wouldn't work in either of the m.2 slots.
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I also updated the z270 taichi motherboard bios to the latest 2.00 and updated the ocz firmware in windows. I unplugged all satas including the gpu. Still no luck. I'm using Corsair vengeance 16gb ram 3000. I tried it in single channel dual channel and with one stick of memory. I also turned xmp off and played with every bios option imaginable. I have exact same problem as the guy up top.
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I have a I7-7700k and an MSI gtx 980.
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That does not sound good about the M2_1 and M2_3, there is no reason besides a problem with the board, apparently, that would cause that situation.

If you check the System Browser feature in the Tools screen, you did not see the M.2 SSD(s) in the M2_1 and M2_3 slots?

I have an ASRock Z170 Extreme7+ board that has three M.2 slots like your Z270 Taichi board does. I've had different M.2 SSDs in all the slots, including an OCZ RD400, and all the M.2 slots worked fine at the same time.

I do not understand this from one of your post's above, "I even populated the second m.2 via an PC express adapter and it still wouldn't work in either of the m.2 slots".

Did you mean you used an M.2 SSD in an M.2 to PCIe adapter card, in a PCIe slot, and the SSD was not recognized? When M.2 to PCIe slot adapter cards are used, the only place you'll see those drives is in the System Browser screen.

It sounds like you've checked about everything you can to get the M.2 SSDs recognized. You should not need the latest or any particular UEFI/BIOS version for the M.2 SSDs to be recognized in a Z270 system. If you know both of your M.2 SSDs work in the M2_2 slot, but don't seem to work in the other M.2 slots, it sounds like your board is bad and should be replaced, sorry to say.
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Hi all, 

I'm here to say this issue is occurring with my Z270 Taichi as well, purchased from NewEgg on 1/31/2017.

I have a Toshiba THNSN5256GPU7 M2 NVMe fresh out of working Dell Precision 5510 laptop. The drive works fine in the laptop and on Z270 Taichi ONLY in the M2_2 slot.  But it's not detected by the BIOS in M2_1 or M2_3 (the ideal slot because of lane mappings).

I've tried UEFI 1.34 and UEFI 2.0.

I've tested with all my SATA drives unplugged and only this M2 NVMe drive installed.

There is another report on NewEgg of an identical issue, perhaps the OP here?  I updated my review on NewEgg to reflect my feature limited Z270 Taichi.

What's the deal here, is this a UEFI issue or hardware issue?
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My NVMe is working fine in M2_1.  I have not try other slot.

Let me know what questions you have.
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