GIGABYTE GA-D525TUD Intel Atom D525

Ive been wondering about this as well and may just buy one to find out
BTW if someone has the time and inclination to setup a little latency lab
We (Mesa) are willing to buy motherboards/misc for latency/compatibility testing

Well, and desk space!

I just ordered a GA-D525TUD and a ASUS E35M1-M to test

Did you get it yet? Mine should be in tomorrow, if everything goes well I should have some numbers up by Saturday.

Yes but I did not have any DDR3 memory so that should come in tomorrow so
I should be able to test then as well

I got the gigabyte GAD525TUD board today and installed it into a Thermaltake Element case, took about 30 minutes to get it running. I haven't had much time to tweak it but with stock bios settings and a fresh install of linuxcnc, I'm getting latency max of 13835. After fighting two machines for way too long I am thus far excited with the results. I'll try to give more numbers tomorrow as I set this up and hopefully start cutting.

I haven't had much time to tweak it but with stock bios settings and a fresh install of linuxcnc, I'm getting latency max of 13835

You should be able to get the latency lower just by using the isolcpus boot time parameter.
wiki.linuxcnc.org/cgi-bin/wiki.pl?The_Is..._Parameter_And_GRUB2

The Intel version of this board is reported to run sub 10K max jitter after this.

regards

OK just tested the GA-D525TUD (with 10,04/2.5.1), and I get much worse latency but I was pretty tough on it,
running flash videos and multiple glxgears, I had as bad as 49000 base thread latency. This is in the range that I can measure with the scope on all the Atom MBs (the latency test is not to be completely trusted as it does no hardware I/O that may be blocked) The isolcpus trick seems to make the average jitter better but the worst case stays about the same

The ASUS E35M1-M was significantly better with 21000, 26000 (servo/base) thread max jitters so seems like a fairly nice fanless LinuxCNC system