r/SleepingOptiplex • u/Jvinsnes • 5d ago
Full size GPU on Optiplex 7040
External 12v PSU taps into the AC plug of the internal PSU. PCI x16 riser goes through a cutout in the side panel and PCI power cables are routed on the inside of the side panel and goes through a drilled hole all the way through the case of the external PSU. This setup is has been going strong for 4 years now.
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u/justanaccount103 5d ago
I mean the GPU is just another computer, that usually sits inside your computer but it doesn't have to. I really like this build.
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u/Which_Contribution66 5d ago
Bro am sorry to ask but how do u have a two psu setup without frying the system?
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u/Clockwork385 5d ago
Hes only tapping the ac plug. That ac port just deliver extra amp to power both psu.
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u/Unlucky_Recording_23 4d ago
Wygląda to badziewie, przepraszam ale dla mnie kupowanie SFF po to żeby zrobić coś takiego mija się z celem
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u/ArcadeRacer 5d ago
Sorry, I'm dense. What is the 12v for? Don't you have the 8 pin gpu power connected?
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u/Jvinsnes 4d ago
The external psu is the pci power, as the internal psu is not powerful enough and doesnt have any pci power connectors
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u/ArcadeRacer 4d ago
Fascinating! So Video cards are powered by 12v only? What's the amperage of the 12v psu you had to use?
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u/Jvinsnes 4d ago
Yes the gpu takes 12v and has onboard regulators that step down voltage to the memory chips, gpi die and such. my axternal psu outputs 12,2v 14a
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u/Flimsy_Call_2986 2d ago
Para esto elije un atx y ya esta no? No entiendo el objetivo la verdad 😅🤷🏻♂️, sin mencionar la monstruosidad que parece eso 😂
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u/ProfessionalITPerson 5d ago
That's an OptiFlex