PSU with monitor outlet

[u0206397]

Why modern PSU has no outlet for monitor power? Most PSU are 500W and above. and some light PC are using less than 200W or even 100W?

 

[u0206397]

CPU 10 or 20 years ago were less efficient.
CRT monitor years ago used more energy.
Thus, together they place a heavy stress on the PSU, which was why they decided to split the monitor power to a separate cable and power plug.

However, both are no longer true today, and PSU are mostly underused, except for those gaming PCs with powerful GPU that taxes the PSU.

 

[cscs3]

Cost saving. Also partially due to atx2.0 and up design. Today, almost all pc trigger power on by using 5v standby power. This power also use to hold data in ram in case you put p. To sleep and not power off.

In summary, unlike old power supply. ATX power supply always has 5v running. To have another 230v output to monitor, this means more circuit is needed within the power supply vs in old day, using on off switch to power on off.

 

[blackestvoid]

a stupid feature
if the psu chibaboom it fries both the cpu and monitor
i also rather use power plug cables rather then extension cables

 

[wwenze]

I guess none has actually opened up to see how it looks like inside

 

[stylechap]

I guess none has actually opened up to see how it looks like inside

Because we're all waiting for you to do an in-depth review

 

[wwenze]

Because we're all waiting for you to do an in-depth review

Well I'm flattered.

 

[wwenze]

The output socket is simply wired to the input socket

 

[stylechap]

Well I'm flattered.

No la
Actually its my first time seeing you post something that i can understand
Can't figure out your other hentai black humour posts

 

[Alphas]

a stupid feature
if the psu chibaboom it fries both the cpu and monitor
i also rather use power plug cables rather then extension cables

Nope, it is a parallel connection, so it does not affect the monitor.

 

[cscs3]

The output socket is simply wired to the input socket

It depend. In old day. Cheap one wire directly. Better design is thru the switch. So monitor get turn on when PC turn on.

 

[cscs3]

either way, no one i know has ever used it... lol

I have one old PC still using it. With 17in crt monitor.

 

[cscs3]

a stupid feature
if the psu chibaboom it fries both the cpu and monitor
i also rather use power plug cables rather then extension cables

Not stupid but very useful feature if you have limited wall plug.
What make you think monitor is taking regulated power from psu? Is no different like you are using a extended power point.

 

[wwenze]

It depend. In old day. Cheap one wire directly. Better design is thru the switch. So monitor get turn on when PC turn on.

In old day, PSU couldn't shutdown on its own. Power was directly controlled by cutting connection to AC via the switch.

The rest is the same - monitor outlet still gets connected parallel to the PSU. Except both are behind the switch.

 

[wwenze]

The below shows why switching capability was easily implemented in AT but naturally went away in ATX.

There are also oddballs that did the below:

But a switch capable of switching 230V 13A is expensive.

 

[cscs3]

there was a time when PSUs could shut down on their own and still have a monitor outlet.


The last I have seen of any switched PSUs was my 1993 Packard Bell...

Thats correct. I habe one of these. But tge output is wired directly to input so you have to manually power off the monitor is connected there.

 

[hexenB]

get a y-cable

https://www.aliexpress.com/item/Who...lgo_pvid=c31aa86c-f8a5-4863-a968-84a196b96004

Rated up to 10A AC 125V AC or 2.5A AC 250V

Not recommended for >500W psu