Re: Asus M5A99X EVO, AMD 8 core FX-8150 bulldozer zambezi, e
Both . .the bulldozer proc should support it, but in my case it appears the board doesn't.
For the AMD chipsets, it'll be an 'IOMMU' option in the bios. The Asus M5A99X EVO has an iommu option that is either 'disabled' or '64mb' and doesn't seem to make a difference to esx when it comes to passthrough.
I read in a few places the ###X AMD based chipsets won't have the ability to do pass-through but the ###FX will but it's up to the board manufacturer whether to make it available.
This thread at MSI seems to indicate the board you are considering will have it in one of the later bios updates: http://forum-en.msi.com/index.php?topic=139125.0
The last post seems to confirm it: I've been using the latest version of v1.7b5 that's frequently updated on MSI's ftp server.
So far it's working great with VMDirectPath I/O. I've thrown in my DELL PERC 6/i and it works flawlessly in a 08R2 VM.
, though that was a year ago, so would have been using a CPU other than the new zambezi core.
I still don't have a firm opinion on how well the new 8 core performs compared against other procs. The system has been stable, I've been compiling in 32 and 64 bit VM's fairly constantly for the last 20 or so hours; I just can't say if it performs better than say a 6 core Phenom or 4 core sandybridge yet.