[GTALUG] New Deaktop PC -- To Run debian Linux - PCPartPicker Recipe;

[Lennart Sorensen]

On Wed, Mar 28, 2018 at 09:50:42AM -0400, Steve Petrie, P.Eng. via talk wrote:
> *** I know that PS/2 is an ancient interface. I only chose PS/2 because it is my understanding that a PS/2 keyboard and mouse combination is better supported and earlier, during the actual Linux boot process, than a USB keyboard and mouse combination. So PS/2 keyboard and mouse offer more liklihood of functionality when there are Linux boot problems.

The BIOS emulates PS/2 for USB mouse/keyboard just fine and should
not cause any issues.  But yes it is slightly more complex to use a
USB device.  I don't remember the last time I dealt with a PS/2 device.
I don't miss them.  I don't think I have had a problem with a USB keyboard
for a decade.  USB mice are never a problem since you never need a mouse
unless the system is actually booted normally, so only for a keyboard is
PS/2 at all interesting.  Well unless you are one of those extreme gamers
that care about the potentially lower latency of PS/2 mice over USB mice.

> *** Confession: Actually, the choice of a single 16 GB memory DIMM came about at the end of an arduous and desperate search for ANY memory available in Canada at reasonable price, that is listed on the Asus motherboard's memory QVL (qualified vendor list).
> 
> *** But yes, I'm not unhappy to be keeping the full 64GB address space open. 
> 
> *** Is it just a superstition that I read somewhere, that there is there a memory access speed advantage, to using more DIMMs to get the desired total memory size ?? For example, that a dual-DIMM 2x8GB configuration provides faster memory access than a single DIMM 1x16GB ??

It is much faster because all CPUs today have at least two memory channels
(some have 6 now).  Having equal memory on both channels doubles your
memory bandwidth.  Now for some uses memory bandwidth isn't that
important, for other uses it is.

-- 
Len Sorensen