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 --- Talk Mailing List [email protected] https://gtalug.org/mailman/listinfo/talk
