[SOLVED] Old PSU vs newish GPU (pcie power adapter worries)

[Loz M 1985]

Hi this is my first full rebuild pc. Need some advice
I have a 650w ezcool PSU
i have an RX580 sapphire GPU which needs a 6pin and a 8pin (6pin+2 pcie)

the psu I have only has Molex and SATA and two 6pins

Can I use one of the 6pins to power the GPU, and either one of the following adapters?

6pin to 8pin pcie

Dual Molex to 6+2pin pcie

SATA to 6pin+2 pcie


If so which is the safest option , I have researched on forums and so far it’s been like 50/50, half the people say buy a new PSU as the damage could be overwhelming for the GPU and MotherBoard & the other half say it will work no issues?

So I’m a bit unsure if the adapter thing is possible? Any advice appreciated.


Which adapter would make a safe working temporary fix until I get a new PSU? Or is it simply not worth the risk?

 

[Gam3r01]

1. Bad idea
2. Bad idea
3. Bad idea

The only safe adapter is two 6 pin to one 8 pin, since each 6 pin can provide 75w and 8 requires 150w.
Its time for a new PSU.

 

[Loz M 1985]

Thanks for the sound advice, yeah time for an upgrade

I was thinking 🤔 it was to risky

thanks for clarifying it all

 

[SamirD]

The connectors are not so important as how much load and ampage each leg is capable of. If the 2x 6-pins each have sufficient amps, then a genuine (not fakes from china) HP part# 721859-001 has a solid build quality to convert 6-pin to 8-pin safely.