X399M Taichi only PCIx 2.0 Mode

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   There is no problem.  As TANWare said, the Auto setting allows the system to select any PCIe version based on what the hardware capabilities are. The other options in the menu force the lower versions.

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MNMadman Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 13 May 2018 Location: Minnesota Status: Offline Points: 27	Post Options Post Reply Quote MNMadman Report Post Thanks(0) Quote Reply Topic: X399M Taichi only PCIx 2.0 Mode Posted: 09 Jul 2018 at 1:35am
	There is no problem. As TANWare said, the Auto setting allows the system to select any PCIe version based on what the hardware capabilities are. The other options in the menu force the lower versions.
	Heatripper Threadkiller // 1950X @ 4.141GHz 16C/16T // Taichi // 32GB 3232 RAM // // Titan Xp @ 2075MHz/12,000MHz // 2TB+512GB NVMe SSDs // Custom Liquid Cooling Loop //

TANWare Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 24 Sep 2017 Status: Offline Points: 120	Post Options Post Reply Quote TANWare Report Post Thanks(0) Quote Reply Posted: 08 Jul 2018 at 6:05pm
	My guess here; Gen1 forces PCIx 1.0 Gen2 forces PCIx 2.0 Auto allows system auto select of PCIx 1, 2 or 3. So the others are compatibility fall backs.
	x399 Taichi, 1950x, 32GB 3466 DDR4 2x500GB 960EVO,Asus 1080TI Passmark

crazeedee Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 07 Jul 2018 Status: Offline Points: 3	Post Options Post Reply Quote crazeedee Report Post Thanks(0) Quote Reply Posted: 07 Jul 2018 at 1:51am
	Hey all, i am wondering that in Bios only PCIx Mode aviable is in Auto, 1.0, 2.0 . No option for PCIx 3.0 Mode. Grafik Card is running maximum on 2.0 Mode. Someone any idea ? Edited by crazeedee - 07 Jul 2018 at 2:13am
	ASROCK X399M Taichi AMD THREADRIPPER 1950x @ 3,8Ghz 32GB CORSAIR DOMINATOR PLATINUM 3200 EVGA GEFORCE 1080GTX FTW2 ENERMAX TR4 240 WATERCOOLING CORSAIR HX1000i POWER SUPPLY