2 PSUs one PC

[full bridge rectifier]

Just a short question

there ist nothing progibiting me from using 2 power supplies in my Computer

or is there ?

(One just for the graphics card)

[Haraikomono]

8 minutes ago, full bridge rectifier said:

Just a short question

there ist nothing progibiting me from using 2 power supplies in my Computer

or is there ?

(One just for the graphics card)

Of course not mehdi from ElectroBoom, Id be carefull though, since im not really sure about how you would want to turn the gpu off again

[full bridge rectifier]

3 minutes ago, Haraikomono said:

Of course not mehdi from ElectroBoom, Id be carefull though, since im not really sure about how you would want to turn the gpu off again

Isnt there a off switch on the back side of the power supply?

i'm not expecting it to be in the need to turn it off a lot

or do you think that could damage the GPU

[IkeaGnome]

2 minutes ago, full bridge rectifier said:

Isnt there a off switch on the back side of the power supply?

i'm not expecting it to be in the need to turn it off a lot

or do you think that could damage the GPU

If the power supplies turn on at different times, it could cause issues.

However there are adapters, mostly for mining, that could work here. 

https://www.amazon.com/BattleBorn-Connector-Splitter-Dual-PSU-Adapter/dp/B016P490UU

That being said, why would you want the GPU on a separate PSU? Just buy a new quality unit that will fit your needs.

[BondiBlue]

Yes, you can certainly run dual PSUs (I did that with a Radeon HD 3870 years ago), but instead you should look into one proper PSU that will safely power your components. 

[17030644]

26 minutes ago, full bridge rectifier said:

Just a short question

there ist nothing progibiting me from using 2 power supplies in my Computer

or is there ?

(One just for the graphics card)

you certainly can

 

but you'll need to turn on the PSU that powers only the GPU manually

 

whenever possible, I'd rather run a single, higher-quality PSU

[full bridge rectifier]

40 minutes ago, 17030644 said:

you certainly can

 

but you'll need to turn on the PSU that powers only the GPU manually

 

whenever possible, I'd rather run a single, higher-quality PSU

What to you mean be turning on the Psu

just flip the switch on the back?

[--SID--]

10 hours ago, full bridge rectifier said:

Just a short question

there ist nothing progibiting me from using 2 power supplies in my Computer

or is there ?

(One just for the graphics card)

When a groupregulated unit is only used to power a gpu (that only uses 12v from the pci-e connector) it has a very bad voltageregulation. A psu with DC-DC is recommend.

[Spotty]

Which PSUs are you using and what system are you powering? Why can't you power the system off one PSU?

It's important to remember that two bad power supplies does not make a good power supply.

[17030644]

On 4/16/2021 at 4:21 PM, full bridge rectifier said:

What to you mean be turning on the Psu

just flip the switch on the back?

Ofc the switch has to be in the "on" position

 

but I mean, shorting pins found on the ATX connector so the PSU "thinks" the motherboard gave it the signal to turn on

[Beerzerker]

That's easy to do.
All you'd have to do is look at the main 24 pin ATX plug of the PSU's and find the lone green wire with each, that's the sensing wire (To ground) that tells it to switch on or off.

Just link both green wires from each PSU (And ONLY the green wires) together and "Presto" - They'll both work normally together.

[doubleflower]

On 4/17/2021 at 2:26 PM, Spotty said:

Which PSUs are you using and what system are you powering? Why can't you power the system off one PSU?

It's important to remember that two bad power supplies does not make a good power supply.

My guess is that the OP has a prebuilt with a proprietary power supply and he wants to add a GPU in it (or upgrade the existing one), only to find out the stock PSU might not be sufficient to power the GPU

[full bridge rectifier]

On 5/4/2021 at 2:33 PM, Beerzerker said:

That's easy to do.
All you'd have to do is look at the main 24 pin ATX plug of the PSU's and find the lone green wire with each, that's the sensing wire (To ground) that tells it to switch on or off.

Just link both green wires from each PSU (And ONLY the green wires) together and "Presto" - They'll both work normally together.

Oh okay thanks for your help
I now have an adapter which they say should work too
(connects 2 of the 24pin motherboard wires to another female 24 pin for the 2nd psu)

[full bridge rectifier]

On 5/4/2021 at 5:50 PM, doubleflower said:

My guess is that the OP has a prebuilt with a proprietary power supply and he wants to add a GPU in it (or upgrade the existing one), only to find out the stock PSU might not be sufficient to power the GPU

something like that yeah....
 

[full bridge rectifier]

On 5/4/2021 at 2:22 PM, 17030644 said:

Ofc the switch has to be in the "on" position

 

but I mean, shorting pins found on the ATX connector so the PSU "thinks" the motherboard gave it the signal to turn on

thx

[17030644]

7 hours ago, full bridge rectifier said:

thx

welcome

[Beerzerker]

7 hours ago, full bridge rectifier said:

Oh okay thanks for your help
I now have an adapter which they say should work too
(connects 2 of the 24pin motherboard wires to another female 24 pin for the 2nd psu)

A simple jumper wire is really all you need.
I have one setup to remotely power on a small unit to my cooling tower's pump whenever I run it.

All I did was to run the wire as stated with one end having a really small spade connector crimped onto one end and pushed that down into the top of the 24 pin ATX plug to the green wire, that ATX plug being what goes to the system itself.
For the remote PSU you can do the same but push it in either at the top or from underneath the plug - Just make sure it's from green wire to green wire ONLY and be sure to secure the wire so it doesn't come loose/out and have one end accidentally touch something it shoudn't as in anything.