The goals for this build were:
- It absolutely must be silent!
- It must be compatible with Linux kernel 4.4.
- It must have good interactive desktop performance
My applications are mainly:
- web browsing with Firefox (often using several profiles and hundreds of tabs in each of several browser windows)
- spreadsheet editing
- KDE Plasma 5
- running custom in-house applications
- I do not plan to overclock.
- No gaming. None.
- I do not want a watercooled rig. I want my rig (hardware) to be relatively maintenance-free.
Results: very disappointing performance :-(
UPDATED RESULTS; I finally have everything sorted out! I changed out several components. I'm using a GTX 1070 GPU and I upgraded the CPU's to Xeon E5 2630-v4. I also upgraded to 256 GB of RAM.
I also decided to used different monitors. I'm using two Dell UltraSharp U3415W 34-Inch Curved monitors and one Dell 24" for a three-monitor setup.
I had to do a lot of troubleshooting to get this build sorted out. However, my main problem, it seems was that I bought the original Xeon CPU's on ebay and they were engineering samples. Sometimes ES CPU's are good, but in my case, the person sold me some that had been overheated or something. Eventually one CPU failed completely and the computer would not boot up. I replaced both CPU's with new v4 units and all is good!
See original discussion thread here:
$5500 budget dual Xeon ECC RAM with dual GPUs and dual 4K monitors for Linux and must be silent - Forums - PCPartPicker https://pcpartpicker.com/forums/topic/129898-5500-budget-dual-xeon-ecc-ram-with-dual-gpus-and-dual-4k-monitors-for-linux-and-must-be-silent
Of course, I blew through that budget. It was a lot of work, but in the end I"m happy with the result. Of course, it is NOT slow once I got the CPU issues sorted out.