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Topic Summary

Posted by: peter j connell
« on: April 06, 2018, 15:18:22 »

"The X470-F ROG Strix is based on the standard ATX form factor and features three PCIe 3.0 x16, three PCIe 3.0 x1, and two M.2 slots — a welcome improvement over the older X370 and B350 boards that featured only a single M.2 slot. We still do not know whether these M.2 slots are PCIe 3.0 x4 speeds capable."

I would ignore this as, to all intents, complete misinformation folks.

We do know am4 can't magically develop more pcie 3 lanes.

Many x370 moboS now have 2x m.2 ports also. One uses 4x pcie 3 lanes for full strength, the other is hald strength using 4 x pcie gen 2 lanes using the shared chipst bandwidth.

what is new, is the 400 chipset will allow slightly better half strength chipset m.2 port using 2 x pcie 3 lanes instead of 4x pcie gen 2 lanes.

Beyond the 4 lanes for the full m.2 and the 4 lanes for the chipset, there still only remains 16 lanes, usually used by the gpu.

For proper nvme raid, you would need to consider 8 lane GPU, which many argue is painless except for some high end games.

Pairing two vanilla nvmeS, one on the gimped chipset & one on the mobo, could still result in far better performance than the best single nvme drives, like the 960 pro.

Paired half strength $120 250GB Evo nvme drives, are much faster than a class champion $340 500GB 960 pro, especially write speed.
Posted by: DX
« on: April 06, 2018, 14:01:46 »

"fully backwards compatible" = how it should be done
Posted by: Redaktion
« on: April 06, 2018, 11:54:43 »

Pictures of Asus' X470 portfolio have surfaced online. The X470 chipset brings support for the upcoming Ryzen 2 CPUs, which are based on the Zen+ microarchitecture. While they look similar to the last generation X370 offerings, all of them now sport two M.2 slots and support for AMD's XFR 2.0 and Precision Boost 2.0 technologies. The new X470 boards also have support for the faster DDR4 3466 MHz RAM and are fully backward compatible with the first generation Ryzen CPUs.

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