X99 Taichi PCI-E Bifurcation?

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   That is unfortunate but understandable if it is a limitation of the platform.

The problem would still be that the BIOS on my board doesn't even have the option for x8/x8 which should at least allow 2/3 drives to be visible.

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shadowmustic Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 11 Oct 2019 Status: Offline Points: 4	Post Options Post Reply Quote shadowmustic Report Post Thanks(0) Quote Reply Topic: X99 Taichi PCI-E Bifurcation? Posted: 15 Oct 2019 at 2:22am
	That is unfortunate but understandable if it is a limitation of the platform. The problem would still be that the BIOS on my board doesn't even have the option for x8/x8 which should at least allow 2/3 drives to be visible.

badbri Members Profile Send Private Message Find Members Posts Add to Buddy List Groupie Joined: 20 Feb 2018 Location: USA Status: Offline Points: 415	Post Options Post Reply Quote badbri Report Post Thanks(0) Quote Reply Posted: 14 Oct 2019 at 3:23am
	from Asrock_TSD "About PCI-E bifurcation, Intel 300 series only supports x16 to x8x8. Four x4 only support at HEDT like x299 chipset." So NO you cannot do 4x/4x/4x/4x with x99 chipset and is why only one drive is seen. If the adapter did 8x/8x then it might work.
	https://www.passmark.com/baselines/V9/display.php?id=99573335296

shadowmustic Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 11 Oct 2019 Status: Offline Points: 4	Post Options Post Reply Quote shadowmustic Report Post Thanks(0) Quote Reply Posted: 11 Oct 2019 at 8:12am
	Hello, I recently upgraded to 2 new NVMe drives that are working well. The previous drives still work fine for other use cases, so I got a PCI-E NVMe expansion card, but it can only access 1 of the drives. Forum research suggests that this is because the card would need 4X/4X/4X/4X PCI-E bifurcation to see the drives individually. Is it possible to enable this? If so, is there a BIOS version available for the X99 Taichi that supports PCI-E bifurcation?