[SOLVED] Connecting 20-pin PSU to 6-pin motherboard

[Cory Compton]

Hello everyone,

My pre-built Dell G5 desktop came with a paltry 360W power supply. I purchased an EVGA 600W ATX 12v power supply to replace it, but it's clear that these power supplies were not 'made' for a small frame PC like mine, as it's far too large to fit inside but I've accepted leaving it outside of the case.

The problem is that the EVGA power supply came with a 20-pin motherboard connector cable, and the G5 motherboard has only a 6-pin input. The 20-pin cable 'does' fit the 6-pin input, but the remaining 14 unused pins hang off the side (see pictures below). I don't want to risk powering on the PSU if this connection will potentially fry my motherboard, and information about this is scarce on the web. Is it safe to try powering on the EVGA PSU with this connection, do I need some form of 20-pin to 6-pin adapter, or is the whole operation just not going to work?

Unfortunately, large wattage SFF power supplies are hard to come by, so I don't really have much of an alternative besides either making this work or dealing with the 360W power supply.

https://imgur.com/gLZoRww

View: https://imgur.com/gLZoRww

https://imgur.com/WjRFzlh

View: https://imgur.com/WjRFzlh

https://imgur.com/3AJ9cgx

View: https://imgur.com/3AJ9cgx

https://imgur.com/zXN3nri

View: https://imgur.com/zXN3nri

 

[Koekieezz]

i wouldn't reccomend on this one adapter, since it's better to have a motherboard that supports all the 24pin rather than 24/20 to 6 pin.

 

[Remeca]

I've been using a 24 to 8 pin in my Dell, which runs 24/7, for quite a while without issue. Just make sure you get the proper adapter. Not sure where you're located, but this is the one you want.

https://www.moddiy.com/products/Del...Main-Power-24-Pin-to-6-Pin-Adapter-Cable.html