Do I need 8-pin AND 4-pin CPU power connectors?

jumeeno · 3 Jan 2021 at 16:57

Hi all - long time no post!

I need a good-value but reliable power supply, with 2x EPS connectors so I can power a Z490 motherboard that needs both an 8-pin and a 4-pin CPU power connector.

That said... it's been a while since I've bought a PSU so please tell me if the additional 4-pin is not required. To be clear, I'd rather be safe than sorry

ANDARIAL · 3 Jan 2021 at 17:08

Afaik that extra 4 pin is for if you want to seriously overclock a la LN2

jumeeno · 3 Jan 2021 at 17:24

I Googled it and many people are saying the same, but every so often I've seen people say that they had instability at stock clocks until this was plugged in too. Hence the rather safe than sorry.

mickyflinn · 3 Jan 2021 at 17:53

jumeeno said:
I Googled it and many people are saying the same, but every so often I've seen people say that they had instability at stock clocks until this was plugged in too. Hence the rather safe than sorry.

Plug it in if you got the cables.

jumeeno · 3 Jan 2021 at 18:01

mickyflinn said:
Plug it in if you got the cables.

See my OP - looking for suggestions

"I need a good-value but reliable power supply, with 2x EPS connectors so I can power a Z490 motherboard that needs both an 8-pin and a 4-pin CPU power connector."

mickyflinn · 3 Jan 2021 at 18:12

jumeeno said:
See my OP - looking for suggestions

"I need a good-value but reliable power supply, with 2x EPS connectors so I can power a Z490 motherboard that needs both an 8-pin and a 4-pin CPU power connector."

Wattage and budget ?

jumeeno · 3 Jan 2021 at 18:21

mickyflinn said:
Wattage and budget ?

Cheaper the better, but of reasonable quality. Let's say 500W minimum.

mickyflinn · 3 Jan 2021 at 18:37

jumeeno said:
Cheaper the better, but of reasonable quality. Let's say 500W minimum.

500w hope your not running a high end gpu the 10900k can use 250w loaded.

https://www.overclockers.co.uk/phanteks-amp-550w-80-plus-gold-modular-power-supply-ca-09p-pt.html

Says 2 x 4+4 eps in the description.

jumeeno · 3 Jan 2021 at 18:38

Thanks for that suggestion. No, an i5 and not OCd.

mickyflinn · 3 Jan 2021 at 18:54

jumeeno said:
Thanks for that suggestion. No, an i5 and not OCd.

Your welcome not sure where i got the 10900k from .

lord filbuster · 3 Jan 2021 at 18:55

Unlrss you need one anyway, I wouldn't buy a psu just to get the additional 4 pin cable, they are basically pointless, especially for a 500w psu.

You can even run lower power stuff with just a 4pin eps in the 8pin, that might be why people are complaining about stability.

pp111 · 7 Jan 2021 at 21:39

jumeeno said:
I Googled it and many people are saying the same, but every so often I've seen people say that they had instability at stock clocks until this was plugged in too. Hence the rather safe than sorry.

This. It should be enough to have one but I have heard of people getting issues with only one.