On 08/21/2015 08:10 AM, LoneVVolf wrote:
Blame Gigabyte, the only reason to disable IOMMU is if you run a 32-bit OS . On all x86_64 OSes running with IOMMU disabled will degrade graphics performance A LOT. As you found , disabling IOMMU also affects other hardware badly. TL;DR : 64-bit OS >>> ENABLE IOMMU Some links : https://en.wikipedia.org/wiki/IOMMU http://developer.amd.com/community/blog/2008/09/01/iommu/ Lone_Wolf
Thanks, and yes, so I found out. It would really be helpful if motherboard manuals were worth a crap anymore, but those days are long gone. The ONLY description concerning IOMMU in the entire manual was:
<quote (page 49)> IOMMU Controller Enables or disables AMD IOMMU support. (Default: Disabled) </quote> A lot of good that does to guide someone in its use. :p -- David C. Rankin, J.D.,P.E.
