Weird motherboard/ssd behaviour?

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17 Nov 2020
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Gigabyte B550 DS3H with latest F11e Bios
Ryzen 5 3600
2 x 16 GB Viper DDR4 3200
5600 XT
XPG SX8200 Pro 1 TB NVMe M.2
750 Watt Antec with 2 x MB and 1 x GPU cables connected

Hi, this is driving me mad. Build as above, sitting on the motherboard box to check basic setup - all new parts. Without the NVMe drive, all good, boots to Bios, set XMP, date etc. Can change all the settings. If I fit the XPG drive to either M.2 slot, it powers up, the CPU fan and the Ram RGB lights all work, but no POST and no image on the monitor. Keyboard/mouse dead too so no USB.

Remove the XPG drive and it boots. It also boots to a USB Windows setup disk. I dug a Samsung PM961 NVMe drive out from my older Dell laptop, and that boots fine and is recognised in the B550 Bios. Also, the XPG drive boots fine and is recognised in the Dell laptop. That was a surprise. I went as far as to then install Windows on that new drive on the laptop so it was partitioned in the Windows installation procedure. Then swapped it back to the B550 and it still will not boot.

With the Samsung drive in the main M.2 slot or second one it boots. If I leave the Samsung drive in the main slot and the XPG in the second slot, no boot.

Seems that at a very basic level the motherboard does not like the XPG SSD at all - firmware? I have messaged Gigabyte and XPG to ask if they have an explanation. No luck with a google search. They are regular parts that should be compatible?

I wonder if anyone has any ideas?
 
I would try going back to the F3 bios as your not currently using a 5000 series chip and the newer bios are for 5000 series support which is still in its infancy so may have some bugs that need ironing out.
 
Thanks to both. It did not work with the shipping Bios - which was F2 - so I went for the latest - I'll try F3 and report back...
 
No luck, I've tried Bios F1, F2, F3 and the latest one. It just will not boot this nvme drive - no problem with the samsung drive.
 
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