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collin_

macrumors 6502a
Original poster
Nov 19, 2018
583
888
The $1,299 model can be configured with "Gigabit Ethernet." With the more expensive models, it comes standard. Maybe I am losing my mind but I cannot locate this port on the new iMac for the life of me. Does anyone know where they put it?
 
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cmaier

Suspended
Jul 25, 2007
25,405
33,474
California
Power next to data wires eh??
Thats got to be like and water tap next to a hair dryer.

DC power is used to shield data signals all over the place. On one famous chip I worked on, we had entire metal layers dedicated to power and ground, just for that purpose. (So, e.g., you had a couple signal layers, then ground, then signal layers, then VDD).
 

08380728

Cancelled
Aug 20, 2007
422
165
DC power is used to shield data signals all over the place. On one famous chip I worked on, we had entire metal layers dedicated to power and ground, just for that purpose. (So, e.g., you had a couple signal layers, then ground, then signal layers, then VDD).
In the case of this iMac, I’d imagine it would have been cheaper and easier to manufacture with the ethernet port in the chassis next to the USB ports rather than external with the additional shielding required in this external solution. Seems like a last minute after thought.
 
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cmaier

Suspended
Jul 25, 2007
25,405
33,474
California
In the case of this iMac, I’d imagine it would have been cheaper and easier to manufacture with the ethernet port in the chassis next to the USB ports rather than external with the additional shielding required in this external solution. Seems like a last minute after thought.

As an engineer, this seems like the exact opposite of an afterthought. It required extensive engineering, eliminates a cable on the desk, and required a great deal of “before” thought.
 

08380728

Cancelled
Aug 20, 2007
422
165
As an engineer, this seems like the exact opposite of an afterthought. It required extensive engineering, eliminates a cable on the desk, and required a great deal of “before” thought.
So as an engineer, considering this considerable effort, it‘s something you’d consider worth the effort for the purpose of eliminating a cable of the desk? Ok, so ignore the fact that, as an engineer, you’d likely consider more work can translate to more $$ (ie: addition weeks wages etc) consider also the power cable probably isn’t long enough allowing the brick to be placed on the floor under the desk, (in most cases it’d still end up being on the desk anyway), consider also Apple’s history with power bricks, they’re notorious for unreliable power supplies that cost too much and often difficult to obtain in short period of time.

Would you not agree, from a users perspective, an internal power supply using typical IEC C13 connector and ethernet port in the chassis would have been a more practical reliable objective than having an Ethernet cable ’off the desk’?
 

cmaier

Suspended
Jul 25, 2007
25,405
33,474
California
So as an engineer, considering this considerable effort, it‘s something you’d consider worth the effort for the purpose of eliminating a cable of the desk? Ok, so ignore the fact that, as an engineer, you’d likely consider more work can translate to more $$ (ie: addition weeks wages etc) consider also the power cable probably isn’t long enough allowing the brick to be placed on the floor under the desk, (in most cases it’d still end up being on the desk anyway), consider also Apple’s history with power bricks, they’re notorious for unreliable power supplies that cost too much and often difficult to obtain in short period of time.

Would you not agree, from a users perspective, an internal power supply using typical IEC C13 connector and ethernet port in the chassis would have been a more practical reliable objective than having an cable ’off the desk’?

That’s a lot of questions. I’ve never had a problem with an apple power brick - not even once, and I’ve got many drawers full of them. I’ve definitely had problems with apple power *cables*, but never the brick. And i don’t agree they are “notorious” for being unreliable. I’ve also never found them “difficult to obtain.”

Since wires break more often than bricks, I also cannot agree that having two wires (one for ethernet and one for power) is more reliable than one. And of course, here‘s the ludicrous part of your argument: you say the power brick is unreliable. Then you argue that the machine would be more reliable and more practical if the components inside the power brick were inside the mac, itself. If the components are unreliable, they are also unreliable inside the mac (and worse, because they can’t be cooled from all sides. This also brings A/C circuitry near to DC circuitry, unless there is sufficient isolation, which would mean a bigger mac, but that’s a different issue). And if the AC->DC circuitry is unreliable, you are much better off having it be an external component that is easily replaced, instead of shipping your mac to apple for a week to have it repaired when it fails.

As another point re: “practical,” I guess that depends on things like the cable length. Which happens to be 2 meters, according to apple’s website. Two meters seems long enough to ensure that the brick need not be located on most desks in most situations.

And, of course, if you find this particularly offensive, you’re always free to buy one of the many thunderbolt-to-Ethernet adapters that are sold for $15 on Amazon, and then run as many wires as you want all over your desk.
 

08380728

Cancelled
Aug 20, 2007
422
165
And of course, here‘s the ludicrous part of your argument: you say the power brick is unreliable. Then you argue that the machine would be more reliable and more practical if the components inside the power brick were inside the mac, itself. If the components are unreliable, they are also unreliable inside the mac (and worse, because they can’t be cooled from all sides.
Some good points, however, the above, my comments were based on my real world experiences, so let me highlight some experiences and then you determine where the ‘ludicrous’ comment can be suitably assigned to be relevant:
1x G3 Lombard Adapter cooked
1x G3 Pismo Adapter cooked
2x G4 Titanium Adapters cooked
2x MacBook Pro circa 2008 Adapters cooked
2x MacBook Pro 2010 17” adapters cooked
3x Apple Cinema Display 30” adapters failed, cost over $159 USD, unavailable off the shelf in Australia had to wait 3 weeks to be posted from USA.

*cooked can also apply to failure without probable cause, IOW died for no known reason.

Approximately 10 LCDs I’ve had over the years with internal PSU’s, none have failed.
 

BootLoxes

macrumors 6502a
Apr 15, 2019
749
897
Some good points, however, the above, my comments were based on my real world experiences, so let me highlight some experiences and then you determine where the ‘ludicrous’ comment can be suitably assigned to be relevant:
1x G3 Lombard Adapter cooked
1x G3 Pismo Adapter cooked
2x G4 Titanium Adapters cooked
2x MacBook Pro circa 2008 Adapters cooked
2x MacBook Pro 2010 17” adapters cooked
3x Apple Cinema Display 30” adapters failed, cost over $159 USD, unavailable off the shelf in Australia had to wait 3 weeks to be posted from USA.

*cooked can also apply to failure without probable cause, IOW died for no known reason.

Approximately 10 LCDs I’ve had over the years with internal PSU’s, none have failed.
You had the opportunity to sneak in a "1x Tim cooked" and you didnt take it
 

SlCKB0Y

macrumors 68040
Feb 25, 2012
3,431
557
Sydney, Australia
In the case of this iMac, I’d imagine it would have been cheaper and easier to manufacture with the ethernet port in the chassis next to the USB ports rather than external with the additional shielding required in this external solution. Seems like a last minute after thought.
Given the size of an RJ-45 socket I’m pretty sure this would exceeded the thickness of the iMac (11mm). It’s the same reason why the headphone jack has to be on the side.
 

SlCKB0Y

macrumors 68040
Feb 25, 2012
3,431
557
Sydney, Australia
Would you not agree, from a users perspective, an internal power supply using typical IEC C13 connector and ethernet port in the chassis would have been a more practical reliable objective than having an Ethernet cable ’off the desk’?
It’s not even a first. Even my Google Chromecast Ultra has the Ethernet socket in the power brick.

It’s just Apple being Apple and willing to over-engineer for the sake of elegance and aesthetics. One single cable being used for a desktop computer with keyboard, mouse and wired Ethernet is pretty cool IMO.
 

theSeb

macrumors 604
Aug 10, 2010
7,466
1,893
none
So as an engineer, considering this considerable effort, it‘s something you’d consider worth the effort for the purpose of eliminating a cable of the desk? Ok, so ignore the fact that, as an engineer, you’d likely consider more work can translate to more $$ (ie: addition weeks wages etc) consider also the power cable probably isn’t long enough allowing the brick to be placed on the floor under the desk, (in most cases it’d still end up being on the desk anyway), consider also Apple’s history with power bricks, they’re notorious for unreliable power supplies that cost too much and often difficult to obtain in short period of time.

Would you not agree, from a users perspective, an internal power supply using typical IEC C13 connector and ethernet port in the chassis would have been a more practical reliable objective than having an Ethernet cable ’off the desk’?
There are many practical advantages besides the obvious aesthetic ones:

1: it allows them to remove a major source of heat from the enclosure thus improved thermal management / quieter computer etc
2. it allows the enclosure to be thinner (RJ 45 connector is around 10.7 mm (the port is even deeper). The new iMac is around 11.5 mm. This is the most likely reason why it got removed and also why the headphone jack got moved to the side.
3. power supplies can fail, especially with power spikes / brownouts. Easy to replace an external one
 
Last edited:

Andropov

macrumors 6502a
May 3, 2012
746
990
Spain
Some good points, however, the above, my comments were based on my real world experiences, so let me highlight some experiences and then you determine where the ‘ludicrous’ comment can be suitably assigned to be relevant:
1x G3 Lombard Adapter cooked
1x G3 Pismo Adapter cooked
2x G4 Titanium Adapters cooked
2x MacBook Pro circa 2008 Adapters cooked
2x MacBook Pro 2010 17” adapters cooked
3x Apple Cinema Display 30” adapters failed, cost over $159 USD, unavailable off the shelf in Australia had to wait 3 weeks to be posted from USA.

*cooked can also apply to failure without probable cause, IOW died for no known reason.

Approximately 10 LCDs I’ve had over the years with internal PSU’s, none have failed.
Have you seriously considered that you may have problems in your electrical installation? Not trying to be snarky or anything, but AFAIK only the Cinema Display adapters were prone to fail, and that's a lot of fried adapters over the course of many years.

I've had only three power supplies fail:
1x MacBook Pro 2015 15.4"
2x PowerMac G5 Dual

And as some posters have said, the circuitry is the same in the power brick as it would be if it were inside the iMac, just non-replaceable, with worse AC/DC isolation and worse cooling.
 

deeddawg

macrumors G5
Jun 14, 2010
12,468
6,571
US
Power next to data wires eh??
You mean like every Thunderbolt 3 docking cable?

Or every POE (Power-over-Ethernet) connected device used on networks for years?

Thats got to be like and water tap next to a hair dryer.

Please give a bit more detail of why you think this is bad? In many if not most places the ethernet jack is in the wall pretty close to the power outlet, so putting the port in/with the power adapter seems a fairly clean solution.
 

deeddawg

macrumors G5
Jun 14, 2010
12,468
6,571
US
In the case of this iMac, I’d imagine it would have been cheaper and easier to manufacture with the ethernet port in the chassis next to the USB ports rather than external with the additional shielding required in this external solution. Seems like a last minute after thought.
What shielding do you need for direct-current power?
 
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mmkerc

macrumors 6502
Jun 21, 2014
304
162
Per Apple's site you can get 10gb/s ethernet through the USB 3 ports

Screen Shot 2021-04-21 at 4.53.03 PM.png
 
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alien3dx

macrumors 68020
Feb 12, 2017
2,193
524
Have you seriously considered that you may have problems in your electrical installation? Not trying to be snarky or anything, but AFAIK only the Cinema Display adapters were prone to fail, and that's a lot of fried adapters over the course of many years.

I've had only three power supplies fail:
1x MacBook Pro 2015 15.4"
2x PowerMac G5 Dual

And as some posters have said, the circuitry is the same in the power brick as it would be if it were inside the iMac, just non-replaceable, with worse AC/DC isolation and worse cooling.
i got 2 ups . scary as fu** when psu imac broken twice.
 
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SpecFoto

macrumors regular
Oct 23, 2013
114
42
SoCal Desert
Per Apple's site you can get 10gb/s ethernet through the USB 3 ports

View attachment 1761779
Don't believe so, the 10Gb/s is referring to the USB 3 ports speed. The Gigabit Ethernet is brought to the computer via the power brick with a standard Gigabit Ethernet connection, which it seems you have to pay extra for with the base model, there is no direct connection on the iMac. USB3 ports will not magically become 10Gb/s Ethernet ports if back at the power brick is just a standard Gigabit Ethernet port.
 
Last edited:

cmaier

Suspended
Jul 25, 2007
25,405
33,474
California
Some good points, however, the above, my comments were based on my real world experiences, so let me highlight some experiences and then you determine where the ‘ludicrous’ comment can be suitably assigned to be relevant:
1x G3 Lombard Adapter cooked
1x G3 Pismo Adapter cooked
2x G4 Titanium Adapters cooked
2x MacBook Pro circa 2008 Adapters cooked
2x MacBook Pro 2010 17” adapters cooked
3x Apple Cinema Display 30” adapters failed, cost over $159 USD, unavailable off the shelf in Australia had to wait 3 weeks to be posted from USA.

*cooked can also apply to failure without probable cause, IOW died for no known reason.

Approximately 10 LCDs I’ve had over the years with internal PSU’s, none have failed.

WTF does “cooked” mean? If you cook your adapter, then yes, it will break. What does “posted from USA” mean?

And all of the machines you are talking about above are ancient. So you had bad luck or bought them at a time when apple had problems. Your anecdotes are not statistics.

Your point remains ludicrous.
 
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