[Solved] PCIe Gen 3 4x not working

So I am having trouble with getting my PCIe 3 x4 to work. There is no option in BIOS, that I have found, to force my second slot to run as PCIe Gen 3. I have a PM961 128 drive, but my read speeds are around 1200 mbs and my write speeds are 800 mbs. It should be twice that. Samsung Magician is showing link speed as 5gbs 10 gbs Max. It should be 10 and 10. Any help would be appreciated... EDIT: I have a 970m Pro3 with FX-6300, AMD HD7970 in second PCIe slot and SYBA M.2 PCIe to PCIe3.0 x4 adapter in my third PCIe slot. The PCIe3 x1 slot is empty. Drive in the Syba is a PM961 128 GB.

Edited by floydstime - 08 Jan 2017 at 5:56am

Also, one PCIe 3.0 lane is 8Gbps maximum, not 10Gbps. Four PCIe 3.0 lanes is 32Gbps.

I do not agree with this either, because before I reinstalled windows it was stating 5gbs 10 gbs max on the pcie link, plus I have found several other people running pcie successfully with 10gbs.

I marked it as "Solved' , it will stay marked Solved, and IS solved. Well, "solved' as in ALL current AMD chipsets do not support PCIe 3 Gen 3. The upcoming Ryzen/AM4 will when finally released. PCIe 3 Gen 3 and DDR-4.


I would appreciated you NOT starting a new thread to b*tch. This one would have sufficed. Copy? Consider yourself warned.


Now, would you like me post my reply in your second thread here too?

wardog wrote: floydstime wrote: Xaltar wrote: AM3+ boards are PCIe 2.0, there is no option for 3.0 because the chipset does not support it.  For sure not true... sorry http://www.asus.com/Motherboards/SABERTOOTH_990FXGEN3_R20/ For sure true! I see you discovered the ONE possible exception and hold it up as the rule. Again, read my reply in your second thread concerning what ASUS Engineers did with a PLEX chip that allowed Gen3.