X299 taichi + 4 GPU

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   Hi, 

 I'm looking at the documentation for the X299 taichi motherboard, and would like some clarifications before buying. It will be used with a 44lanes CPU. 

 The documentation is stating the following: 
* If you install CPU with 44 lanes, PCIE1/PCIE2/PCIE3/PCIE5 will run at x16/x8/
x16/x0 or x8/x8/x16/x8.

 In the PCI-e slots configuration (p.20) there is nothing about the PCI-e lanes allocation for 4GPUs. Section 2.9 (p.32) is talking about Quad SLI things but there is no section about the Quad SLI. Actually I don't really need SLI, just 4 GPUs.

 Is this motherboard able to handle 4 GPUS at at least x8 ? And if so, how will the m.2 slots behave ? I'm open to go for a 2.5 inches sata ssd. 

 Thanks, 
Thomas.

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wrThomas Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 22 Jan 2019 Status: Offline Points: 3	Post Options Post Reply Quote wrThomas Report Post Thanks(0) Quote Reply Topic: X299 taichi + 4 GPU Posted: 22 Jan 2019 at 12:45am
	Hi, I'm looking at the documentation for the X299 taichi motherboard, and would like some clarifications before buying. It will be used with a 44lanes CPU. The documentation is stating the following: * If you install CPU with 44 lanes, PCIE1/PCIE2/PCIE3/PCIE5 will run at x16/x8/ x16/x0 or x8/x8/x16/x8. In the PCI-e slots configuration (p.20) there is nothing about the PCI-e lanes allocation for 4GPUs. Section 2.9 (p.32) is talking about Quad SLI things but there is no section about the Quad SLI. Actually I don't really need SLI, just 4 GPUs. Is this motherboard able to handle 4 GPUS at at least x8 ? And if so, how will the m.2 slots behave ? I'm open to go for a 2.5 inches sata ssd. Thanks, Thomas.

ASRock_TSD Members Profile Send Private Message Find Members Posts Add to Buddy List ASRock_Official Joined: 20 Mar 2015 Status: Offline Points: 8532	Post Options Post Reply Quote ASRock_TSD Report Post Thanks(0) Quote Reply Posted: 22 Jan 2019 at 10:17am
	Dear wrThomas, Regarding your question, X299 Taichi can support 4 GPU when 44 lanes CPU is in used. The 4 GPU will work at one x16 mode and three x8 mode. Because all the M.2 slots don't share lanes with PCIe slots, when 4 GPU connected, three M.2 slots can be used. If M2_1 is occupied by a SATA-type M.2 device, SATA3_1 will be disabled. If M2_2 is occupied by a SATA-type M.2 device, SATA3_0 will be disabled. *If M2_3 is occupied by a SATA-type M.2 device, SATA3_7 will be disabled. https://www.asrock.com/MB/Intel/X299%20Taichi/index.asp#Specification Thank you! Yours truly, ASRock TSD