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This is very interesting... is there any chance that there is this connection via the backplane between the two nodes? Or is that strictly power only?

That's true - there's a slight concern on mechanical stability since using the riser would allow you to use the screws to secure to the chassis. But hey, it would be a lot of fun to see a GTX980Ti on this thing. I'm concerned about BIOS compatibility since the GT710 2GB had issues, though.

If you look at the bottom photo: Imgur: The most awesome images on the Internet That's pretty much the size of the GPU available. Where the DIMMs start, there is a hard plastic cowling for air-exchange for cooling RAM/CPUs (which you can see on the second node in that photo). What is the...

Thanks @tuatara! I wonder how closely to spec all these Windmill OCP boards are... would the BIOS be interchangeable?! What is the version/date of the Quanta BIOS?

In treating these as cost-efficient workstations, I'm trying to expand I/O as much as possible. This may be a big difference between these Wiwynn SV7210 and the Quanta, but the three MiniSAS headers appear unpopulated: Imgur: The most awesome images on the Internet I don't know much about SAS...

Thanks, Jan - this is great data!

I wonder how I could squeeze a decent GPU into the chassis to play it! ;)

Oh, that was me just trying to fill up the screen (usually all CPUs are flatlining at zero and memory doesn't even register). Here is the benchmark program I used to puff it all up: y-cruncher - A Multi-Threaded Pi Program

Thanks, the Wiwynn project director's name is G.C. Chang. I will PM you the contact details so you can forward it to your friend. Yes, the $65 E5-2670s I picked up were SR0KX so should support VT-d.. next time I reboot I will take a look at the BIOS options. As for Windows 7.. well you get...

Yes. There are two USB 2.0 ports, one in the front, and one on the motherboard (they call it "internal"). They don't seem to be identical; the internal one sometimes works for boot.. and sometimes only works for a keyboard. It's foolproof to use the front USB port, if your USB drive fits in...

For the VT-d question, I don't know if this answers your question, but on a lark I installed the Xen Hypervisor on my Ubuntu 16.04 LTS beta. This is the output of the initial dom0 dmesg upon boot: (XEN) Processor #45 6:13 APIC version 21 (XEN) Processor #47 6:13 APIC version 21 (XEN)...

I too thought it would be much more elegant taking a single $99 node and powering it from ATX. Once I saw what you get "for free" ($199 includes the two $99 nodes, plus the chassis, plus the power supply, plus the power bus board) I got lazy and just paid $48.

Answers: 1. Although Michael (the eBay seller for the SV7210) suggests there are BIOS updates from Wiwynn, when I emailed Wiwynn, their project director just asked "where did you find one of those old things!?" and did not further reply when I volunteered to be a maintainer of their last set...

Ok, I'm going to take @Patrick up on his offer if someone else hasn't already! :) Background: Long-time STH lurker who jumped at the opportunity to grab $65 E5-2670's. When I looked at what to put them in though, it all seemed so pricey. So I thought "well if these E5-2670's are coming from...