Is my 450w PSU too powerful.

[Whiffle]

Hi,

I have just bought the SuperFlower 450w Gold PSU for a new Linux server (to be run headless):

https://www.overclockers.co.uk/supe...0-plus-gold-power-supply-black-ca-002-sf.html

My setup is based upon:

MSI mATX motherboard
G1840
2x4gb RAM
1xSSD
3x3.5" HDD
2 x 120mm fans
Dual DVB-T2 tuner (still to be bought)
Quad DVB-S2 tuner (still to be bought)

All I am going to be using if for is recording TV (via MythTV or TVH) and steaming media around my house.

The PC wakes up to record but goes into sleep mode whenever it is not being used.

I bought the above PSU, given it was gold rated, to save a bit of electricity.

However, I have just realised that it is perhaps too powerful for my system - should I have gone for the 350w version instead to get a higher load and thus better efficiency?

https://www.overclockers.co.uk/supe...0-plus-gold-power-supply-black-ca-001-sf.html

They seem to be absolutely identical but for the wattage.

I don't really anticipate adding much more to the above system, other than perhaps a couple of extra hard drives in the future.

What do you guys think?

 

[Whiffle]

Thanks for that - I hadn't realised that the real life energy usage actually differed so little.