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x470 Taichi Ultimate 2nd m.2 (M2_2) SATA support |
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Stellar88 
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 Topic: x470 Taichi Ultimate 2nd m.2 (M2_2) SATA supportPosted: 13 Jun 2018 at 12:13pm |
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Hi, I have the following 2 m.2 ssd:
1. WD Green m.2 2280 (Current boot drive) https://www.wdc.com/products/internal-ssd/wd-green-ssd.html#WDS120G2G0B 2. HP EX920 nvme https://www.amazon.com/HP-EX920-Internal-2YY47AA-ABC/dp/B0795Z97K7 The problem is that when I place HP EX920 on first m.2 (M2_1) slot on x470 taichi ultimate mobo, and WD Green m.2 in the 2nd m.2 (M2_2) slot, the BIOS can only recognize the HP EX920 and can't boot into OS (No operating system found). Yet, if I switch the SSD onto each other slot, the BIOS is able to recognize both m.2 SSDs and I can boot into OS just fine. From what I understand that the 2nd m.2 slot on x470 Taichi Ultimate should be able to support SATA 6.0Gbps unlike its predecessor (x370 Taichi), yet I couldn't get it to be recognized in the BIOS (1.36A Beta). What gives? Any assistance could be greatly appreciated. I would hate to run the HP EX920 on 2nd m.2 slot with only PCIe Gen 2.0 x 4 speed & without the m.2 heatsink cover. Thanks.
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kerberos_20
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Joined: 06 Dec 2017 Location: czech republic Status: Offline Points: 3687 |
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Posted: 13 Jun 2018 at 12:28pm |
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unless theres new bios with updated m.2 compatibility, theres not much u can do btw in ur manuals your wd drive is not listed, so ur quite lucky to get it working in atleast one slot
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Stellar88
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Posted: 13 Jun 2018 at 1:03pm |
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Huh, now that you mentioned, only the 240Gb variant of WD Green is in the supported list.
Regardless, it's weird to imagine it being able to work in 1 m.2 slot but not the other? I hope this is not x370 all over again (with no SATA support in the 2nd m.2 slot). I don't have any spare m.2 Sata lying around to validate this though. Anyway, thanks for your input.
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gizmic
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Posted: 13 Jun 2018 at 3:34pm |
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hmm RTFM the bottom one doesn't support SATA (WD)
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Stellar88
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Posted: 13 Jun 2018 at 4:21pm |
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The part where it says SATA is supported:    The part that doesn't say so:   me for actually did read the booklet manual right? It clearly mentions the support of SATA in M2_2 yet the online site now does a u-turn on it in the specs page mentioning that no SATA support for M2_2, BUT the main X470 Taichi Ultimate still highlights it as a feature. So much for actually trying to read the manual before consulting the forum for help. My disappointment is immeasurable and my day is ruined. /end
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gizmic
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Posted: 13 Jun 2018 at 4:32pm |
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the online manual says other wise which is the same as the specs on your last picture
 i'll help you check on my physical copy of the manual after 4 hours :D but i may have a newer version of the board since mine came in with 1.2 bios |
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kerberos_20
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Posted: 13 Jun 2018 at 4:48pm |
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current manuals doesnt have this part, so its not supported if they removed support
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Stellar88
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Posted: 13 Jun 2018 at 5:05pm |
Thanks for making the effort. I think mine should be same as yours, since mine come with 1.2 BIOS too before i flash it to the BETA 1.36. At this point I am accepting the fact that the physical manual that I received is not QA-ed properly hence the misinformation. Case closed I guess.
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gizmic
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Posted: 13 Jun 2018 at 5:08pm |
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yeah think of it this way its like throwing the driver CD because the online ones are some what updated
just use the WD at the top one its like you're not gonna lose or gain performance other than the fancy heatsink :D |
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Stellar88
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Posted: 13 Jun 2018 at 5:17pm |
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Nah I would prefer to have the NVME drive on top with the heatsink & Gen 3 pci-e speed. the WD Green drive is only 120Gb anyway, I have already plan to replace it with this new NVME drive, it's just that I can't get it to recognize it at the bottom slot thwarted the convenience of me transferring files in between them as I intended to do a clean OS installation to begin with. But with this situation I decided to clone the WD Green into the NVME and call it a day.
Guess it's prime time to sell off the WD Green then haha!
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gizmic wrote: