09-13-2016, 01:47 PM
My useless 2 cents again. I am a novice when it comes to defining what makes the gigabit Ethernet work properly. As an old time electrician from a factory setting, the number one weak link for electronics was the power supply. Since the power distribution system induces all kinds of transient voltages and ripples, it is imperative to have proper filtering for the electronics, either through the power supply or on board.
I do not have a scope, and it would take a very good scope to catch the spikes and valleys of the ripples in the voltage being measured. Most of the spikes are a very, very short frequency, so they really don't hurt the electronics, even with a high amplitude.
Since I am not an electrical engineer, I would hope that this day and time, the boards would have a built in voltage regulator, that would filter out all the transients (in the old school, the board would have coils and capacitors to filter).
But, I personally do not think it is a hardware problem. For one, only Linux running on my 2 gig board NEVER had a problem with a standard Ethernet cable, perhaps not gigabit, but it worked OK as it was. On the other hand, the modified Ethernet cable still did not work with Android or Remix, when I first tried the modified cable. I put the board away in a drawer for awhile and never touched it because lack of Ethernet connection.
A couple of days ago, I tried it again, and lo and behold using the same modified Ethernet cable, that did now work earlier now works. I know there was no little pixie that modified my board when it was packed away, so that only leaves software that changed. That is why I don't believe it is a hardware issue. But I am only talking in reference to the Ethernet connection, not whether it is connecting with gigabit or just fast Ethernet. For my purposes, fast Ethernet works just fine for me. But, if I choose to use this board as a server, then having a gigabit connection would be very critical.
I do not have a scope, and it would take a very good scope to catch the spikes and valleys of the ripples in the voltage being measured. Most of the spikes are a very, very short frequency, so they really don't hurt the electronics, even with a high amplitude.
Since I am not an electrical engineer, I would hope that this day and time, the boards would have a built in voltage regulator, that would filter out all the transients (in the old school, the board would have coils and capacitors to filter).
But, I personally do not think it is a hardware problem. For one, only Linux running on my 2 gig board NEVER had a problem with a standard Ethernet cable, perhaps not gigabit, but it worked OK as it was. On the other hand, the modified Ethernet cable still did not work with Android or Remix, when I first tried the modified cable. I put the board away in a drawer for awhile and never touched it because lack of Ethernet connection.
A couple of days ago, I tried it again, and lo and behold using the same modified Ethernet cable, that did now work earlier now works. I know there was no little pixie that modified my board when it was packed away, so that only leaves software that changed. That is why I don't believe it is a hardware issue. But I am only talking in reference to the Ethernet connection, not whether it is connecting with gigabit or just fast Ethernet. For my purposes, fast Ethernet works just fine for me. But, if I choose to use this board as a server, then having a gigabit connection would be very critical.