[Lex1989] PC Modification Required!

[Lex1989]

I have got a working PC like this.

Possible for me to grab a PCIE Extender Cable, for Galax RTX 3060 TI to be installed?

I know i will need another PSU to fire it up.

Any comments are welcome!

 

[localITguy]

I have got a working PC like this.

Possible for me to grab a PCIE Extender Cable, for Galax RTX 3060 TI to be installed?

I know i will need another PSU to fire it up.

Any comments are welcome!

u siao?

miht aswell get a extl gpu enclosure

 

[Lex1989]

u siao?

miht aswell get a extl gpu enclosure

GPU enclosure is like EGPU which uses thunderbolt?

 

[localITguy]

GPU enclosure is like EGPU which uses thunderbolt?

yeah. if u want put gpu can la. if u find small enough gu and need to swap the PSU

 

[Entry Level PC]

I have got a working PC like this.

Possible for me to grab a PCIE Extender Cable, for Galax RTX 3060 TI to be installed?

I know i will need another PSU to fire it up.

Any comments are welcome!

Got M.2 or not?
If yes you can do this.

 

[localITguy]

Got M.2 or not?
If yes you can do this.

good idea

 

[KYZT2021]

But now the thunderbolt also not full bandwidth

 

[Lex1989]

But now the thunderbolt also not full bandwidth

Yah, thats why i want to direct use the PCIE extender cable.

 

[Lex1989]

After which i will just get another PSU to power up the GPU separately.

Although messy but my desk has space for it.

Anyone does that before?

 

[Lex1989]

It shall be something like that, but CPU will be linked via PCIE extension cable.

Anyone experienced can share your thoughts?

 

[wwenze]

There are multiple ways to do this. Including this one.

This is really no different from how some ITX cases use PCI-E cables to connect their GPU.

You will need an adapter cable for your PSU so that the mobo turns on both the original PSU and the new external PSU together.

Alternatively you can just remove the original PSU and use the new external PSU to power both.


External GPU docks using thunderbolt have no issue with multiple PSUs, because the dock itself can tell the PSU when to turn on. These thunderbolt docks are also hot-pluggable, while PCI-E is not. (Well, theoretically they are, but you want to try removing your GPU from your PCI-E slot while it is running?

 

[NightRaven49]

if u are already going to buy a new psu, might as well buy a new case to go along with it so u dont have to deal with such janky solutions.

 

[Lex1989]

There are multiple ways to do this. Including this one.

This is really no different from how some ITX cases use PCI-E cables to connect their GPU.

You will need an adapter cable for your PSU so that the mobo turns on both the original PSU and the new external PSU together.

Alternatively you can just remove the original PSU and use the new external PSU to power both.


External GPU docks using thunderbolt have no issue with multiple PSUs, because the dock itself can tell the PSU when to turn on. These thunderbolt docks are also hot-pluggable, while PCI-E is not. (Well, theoretically they are, but you want to try removing your GPU from your PCI-E slot while it is running?

From what i understand here is that,

If i use separate PSU, for MB and GPU, it will clash?

 

[Lex1989]

if u are already going to buy a new psu, might as well buy a new case to go along with it so u dont have to deal with such janky solutions.

You are right thou!

Must well make a new built right? :/

 

[ragnarok95]

It's a OEM pc? If DIY you could just shift to a bigger casing. If it's OEM, you could too but do check the 20/24 pins. Some OEM are on 20 pins or so.

 

[wwenze]

From what i understand here is that,

If i use separate PSU, for MB and GPU, it will clash?

There's no problem with multiple PSUs

However to turn on the PSU, the green wire needs to be shorted to ground. The motherboard does that for you. When you have two PSUs and one motherboard, who shorts the second PSU's green wire?

That's why there is a y cable that allows both ATX24 pin from both PSUs to connect to the same motherboard, so that one motherboard turns on both PSUs at the same time.

In external GPU docks, the dock is smart enough to do that by itself.


The second part of my comment is practicality. If you need a ATX PSU anyway, it can handle both the gpu and cpu without problem. Save your rare tfx PSU, they are expensive to replace.

 

[Lex1989]

There's no problem with multiple PSUs

However to turn on the PSU, the green wire needs to be shorted to ground. The motherboard does that for you. When you have two PSUs and one motherboard, who shorts the second PSU's green wire?

That's why there is a y cable that allows both ATX24 pin from both PSUs to connect to the same motherboard, so that one motherboard turns on both PSUs at the same time.

In external GPU docks, the dock is smart enough to do that by itself.


The second part of my comment is practicality. If you need a ATX PSU anyway, it can handle both the gpu and cpu without problem. Save your rare tfx PSU, they are expensive to replace.

Thanks man! Very technical! :/

 

[Lex1989]

It's a OEM pc? If DIY you could just shift to a bigger casing. If it's OEM, you could too but do check the 20/24 pins. Some OEM are on 20 pins or so.

This is a DIY built, yes able to shift to bigger case.

 

[wtfh4x]

You are right thou!

Must well make a new built right? :/

You just need a new ITX case though which is like $100 for a nice one.

 

[Lex1989]

You just need a new ITX case though which is like $100 for a nice one.

Any recommendations?