z820 block diagram :
http://manualmachine.com/hp/c1d80ut-small-form-factor/905921-user-manual/page:10/
Hi
Regarding the usb 3.0 on the z820 motherboard, i cant find any information on the block diagram
of the front two usb 3.0 ports so i assume they are identical to the rear usb 3.0 ports which have to go to a USB 3.0 controller TI7340 first then to the INTEL C602 controller via x1 connection speed (500MB/s) and finally to the CPU via DMI
( Direct Media Interface ).
1) what is the DMI Bandwith maximum on the z820 from the C602 to CPU 0 ?? 5 GT/s DMI
I am under the impression that its DMI 2.0 and that equals PCIe 2.0 which equals 500MB/s per lane if so how many lanes are there ? x4 just trying to work out total bandwidth
2) if i decided to use a USB 3.0 PCIe card ( for a direct CPU to USB 3.0 connection). Would i decrease " slightly " the latency because now i am bypassing the TI7340 + C602 controllers ?