[Xen-users] Cheap IOMMU hardware and ECC support importance

[Mihail Ivanov <mihail.ivanov93@xxxxxxxxx>]

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I am looking to use Xen on my workstation and am thinking of 32-64 GB
ram. Is it really that important to use ECC ram? How often will the
non-ecc ram crash my system? Also I've heard about FS corruption and
the need to use ZFS. My machine will not be on 24/7 and I can tolerate
a restart once per week, but I care a lot about data integrity and my
file system. I will be running around 10 PV Linux DomU's and some 1-2
Windows HVM's.(most likely will passthrough a GPU to the one of them).

I still haven't decided on what hardware should I get.
Perhaps someone around here with more experience can help.

Things I need:
IOMMU(fully working one)
PCI-E slots - 4+(running many Video cards)
RAM - ECC? - 4-8 Slots 32GB-64GB
CPU - 8 Core AMD 3Ghz+ or 4-6 Core Intel 3Ghz+(sub 600 $)
TPM header matters but it's not a necessity

So far I've come up with the following

AMD:

AMD 8320 + Asrock 990FX Extreme9
Says it supports 64GB with 4 slots
Yet on the supported memory list - only modules of 8 GB are listed,
so I am not sure if it can really use 16GB ones.
Also I am interested if it can use ECC ones.

Intel:

Intel i7-4770
Asrock Z97 Extreme4

Now I am sure this one can only go 32 GB Non-ecc,
also the Vt-d support is not really official.

Intel i7-4930k
Asrock X79 Extreme6

6 cores, Official Vt-d support and 8 slots.
Yet still no ECC.

Intel Xeon E5-1650V2
Asrcok EPC602D8A

Now this is a bit expensive, yet it's finally a server grade stuff I
guess, also it has 6 cores and ECC ram of course.

Intel XEON E3-1241V3
Asrock EPC602D8A

Expensive as well. Only 4 cores.
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