TWO SOURCES ON A PC

[mij4el]

Good morning, I had a question, can you use one power supply for the motherboard and another for the video?
I mean, is there a way to have the voltage work separately?

[Sylver]

Hello,

It can be done, it's not difficult, there are tutorials on the internet.

However, it is recommended to use only one power supply for the entire system, for safety and integrity.

Best regards

[Clipper]

hello.
that was done in the era of the MB with two physical processors and three graphics cards like gtx295
that the power supplies did not give so much juice. nowadays it is practically impossible.
if you explain a little the idea you have and components it will be easier.
regards

[Fassou]

As @Sylver says, it's very easy to do, always talking about additional connections.

A graphic card is powered by its connection port (PCI-Express, AGP, PCI,...) which is part of the one supplied to the board, but it is very common for them to have one or two additional connectors that can be like those of hard drives or dvds, or type PCI-Express with 6 or 8 contacts.

These are the connectors that you could connect to another power supply that you have on (for example, by bridging two pins of the ATX connector), to free the main one from that load, but it is still a mess.

Salu2!

[whoololon]

The issue is that this is such a bad idea because, if the power supply is of quality and sufficient power, one is more than enough.

If you are going to put a generic one, or one of those with a trendy name with a sticker that says "87+ Golder Retriever 800 W"... which then have a huge ripple (and if they deliver 300 W real, we can be very happy), for that it doesn't matter if you put two, three or four power supplies, sooner or later you are going to have problems anyway.

Likewise, if we buy two good power supplies what we are doing is throwing money away.

In short, it is possible, but it is completely unnecessary in a home PC, no matter how high-end it is.