On 1/7/2020 1:37 PM, Paul wrote:
AnonLinuxUser wrote:
On 1/6/2020 6:37 PM, Paul wrote:
nospam wrote:
In article , Paul
wrote:

Apple supplies are contracted out, which is a
general industry trend for OEM computers.

false.

There are no Apple branded electrolytic capacitors, or
Apple factories for PSUs. (It says right on the side
of the PSU in my Mac G4,

that's a 20 year old computer long obsolete, and caps aren't the issue
anyway.

So you admit then, that it happened and it's true.

"20 year old computer"Â*Â* equalsÂ*Â* "Apple made it and was proud of it
at the time".

https://www.flickr.com/photos/babz4x...n/photostream/

Because flickr is so much fun to navigate, here is the picture
as seen in my browser.

https://i.postimg.cc/QChfKHcg/dongguan.jpg

Â*Â*Â* Dongguan Samsung Electro-mechanicsÂ* === This is the OEM making
the subassembly
Â*Â*Â* Made in China
Â*Â*Â* S/N:
Â*Â*Â* Apple P/N: 614-0224Â*Â*Â*Â*Â*Â*Â*Â*Â*Â*Â*Â*Â*Â*Â*Â* === This is the Apple BOM item

So, yes, yes, Petunia, Apple is not fully vertically integrated.

When it makes sense to buy a subassembly from a third party, they do.

Just as when I worked in my fully vertically integrated company,
if I needed a "ua741", I didn't go down to the fab and hand-hew
the ****ing thing out of raw silicon. I ran down to Radio Shack
and got one for a buck. Lots of stuff came as subassemblies.
When I was in our "computer making" division, the power
supplies were perfectly awful OEM units. "I spit on them"
was the brand name.

What Apple uses for OEM, are better quality than anything
we ever put in a box.

HTH,
Â*Â*Â*Â*Â* Paul

That's the way the industry works.Â* Why reinvent the wheel when
someone else has what you want cheap?

It's almost a push-button industry.

You bring a bag of money, give a list of voltages and
currents, indicate what "certs" you want, device dimensions,
what protection features (OCP,OVP,UVLO,whatever), and
you can have a PSU made for you. (We had a division at
work which could do this for you, too. They were so good,
we sold them off, lock, stock, and barrel, to a power
supply company :-/ The employees, never to be heard of again.)

The PSU in the picture (and a few from that generation),
have some of the same voltages as ATX. The difference is,
that PSU has a +25V DC output for running a computer monitor.
Apple "attempted" lockin, by offering some monitors that
didn't need a power cord. They would get their power from
a 25VDC output on the monitor faceplate. This did not prevent
the usage of regular monitors, so it's not "real lockin",
but you can see what they were up to. Apple stopped doing
that after a while.

I'm familiar with this, only in as much as I modded an
Apple AGP video card for usage in a PC. I seem to remember
four electrical connections needed slight mods (as well
as flashing in a PC ROM image). Why did I mod a card intended
for an Apple ? It's because I only ever got one driver for
the card, and ATI didn't provide any more updates for the
driver. So I said "**** it, I'll get some usage of the card
in my PC". And I gamed on that card for another five years
after the mod. The Mac G4 went back to using the 9000 it
came with (still good, for what it is).

Â*Â* Paul

Again, you've provided the insight into the industry. No need to spend
a lot of money doing the research, only to find out that it can be done
by someone with experience and expertise at a much lower cost.