Question My 650w PSU only has a 6-pin for GPU ?

[rx570user]

I have this FSP 650w 80+ Bronze PSU. I use it with an RX 570 which only needs a single 6-pin.
I wanted to upgrade the GPU to maybe a 1080 Ti but that needs a 6-pin and an 8-pin.

Here's a picture of the specs. I have 4 extra molex connectors and an extra CPU 4-pin. Should i use a molex to 6-pin or 8-pin connector if I want to get a 1080 Ti?

 

[Lutfij]

Welcome to the forums, newcomer!

Thumb rule, if your PSU lacks the necessary connectors for your components in your build you either have;
a| the wrong PSU for the job
or
b| the wrong components for your build.

If you look around the www, you'll see that the main cause of fires are adapters. How old is your PSU anyway?

I have this FSP 650w 80+ Bronze PSU.
FYI, that PSU is 600W at most, not 650W.

Looking a the mechanical drawings, you should be having a 6+2pin connector stemming from the PSU, labelled P4 on the harness connector;
https://www.fsp-ps.de/download/pro/FSP600-80PSA(SK)_Datasheet.pdf
which would lead me to suggest looking at GPU's that need a single 8pin connector.

 

[rx570user]

Its like 3 or 4 months old

 

[DSzymborski]

Its like 3 or 4 months old

That's an *old* model, designed for PCs from 20 years ago (you can tell from the group-regulation and the rail configuration). That's cheap office PSU territory if they're actually still making these. I would only use an adapter to power a 1080 Ti if I were unconcerned about the GPU dying or a computer fire.

 

[rx570user]

If thats the case i guess i will change. Any budget recommendations?

 

[Grobe]

Ok - I just tested this myself since I have this exact plug combination myself. There should be no problem plugging a 6 pin plug into a 8 pin socket, because in one corner, the first contact (+12V) are square so that you cannot put it the wrong way, even if you have a 6 pin plug.

The only possible issue indicates that a PSU with 6 pin 12V connector may have lower speccs compared to a PSU having a 8 pin 12V connector - just an indication, it may just work completely good in your case.

 

[--SID--]

You don't want to power a 1080 Ti with a junk group regulated PSU like that. It's a bad unit because the voltage regulation is horrible and it lacks essential protection features.