Help selecting new PC to run Mesa 7I92 Ethernet

PCW wrote:

I would not disable multi-processor

Did you try disabling irq coalescing from the command line as tommylight showed above?
(just to make sure its really disabled for your test)

I thought it is the same thing to added it to interfaces file
I'll connect internet to install ethtools and try it

tommylight wrote:

Side info, from PCW "ARP" is address resolution protocol so it has to send a query to the network to identify the owner of the requested address, in this case 10.10.10.10.
Was it you who asked for help here? I recalled mentioning the user name of the guy who did the retrofit, but he never replied . Now he is back asking for help again. As you might have noticed from my reply back then, I was convinced he will not help, although he was active in the forum at that time. He also did some other retrofits but never helped anyone here.

I asked once for help in this post
forum.linuxcnc.org/10-advanced-configura...ch-press-gcode#93824
I'm not sure if that post what you meant
But it is my first and only machine in my retrofitting carrer and I hope to keep doing this kind of work
I found my way out from 0 to almost a working machine with a support of this forum even if I'm not asking, but using the old posts by other people asking for help
I left it uncompleted two years ago due to personal circumstances and now I back again to finish, it was very hard to remember all of the complicated things that I already did before but I think I'm doing well gathering old information

tommylight wrote:

I do own a Lenovo Think centre m93 if I am not mistaken and it has very stable low latency, did plenty of testing on it with 7i92 and 6i25.
I have also some Asus Prime Z270A boards, very good and low latency, but still pricy.
Did not check an Asus J1800 board with included processor and a parallel port with Preempt-RT, but with RTAI it works nicely.
On another thread I mentioned an Acer laptop that works perfectly with Preempt and 7i92, also user Pl7i92 mentioned some fujitsu-siemens that he uses.
Add the HP that PCW mentioned and you at least have a bit of room to find something.
BTW, is the PC wired directly to the mesa board? I can't remember if I already asked that.

I'll try to find one of the options you suggested if not I may try the
GIGABYTE BRIX with Celeron N2807 because it's avilabe as new

if you can go with the emi free systewm
it woudt be a j1900 internal cabinett option

even the older MW525 woudt be a nice small case option