Need a good power supply for my system.

Bart ix 123 · Oct 30, 2016

Hello guys i currently have some very LOW quality PSU from '08 and i need a new powersupply for this PC: I live in ireland and id like to buy from amazon UK.
i3 2100 (Soon will become an i5 2400)
8GB HP RAM DDR3
250GB HDD
500GB HDD
GTX 780 Reference
Asus P8P67

My budget is max 50 euro. I was thinking of an Aerocool 500W PSU or maybe a Coolermaster B500 v2.

Thanks in advance

turkey3_scratch · Oct 30, 2016

The Corsair CX450M would work https://www.amazon.co.uk/Corsair-CP-9020101-UK-CX450M-Semi-Modular-Bronze/dp/B01C3FFOHS/ref=sr_1_1?ie=UTF8&qid=1477860725&sr=8-1&keywords=corsair+cx450m

Bart ix 123 · Oct 30, 2016

Is there anything cheaper by any chance? It does look like a nice powersupply though.

turkey3_scratch · Oct 30, 2016

Going cheaper seems to get into more poor options. I can't seem to find any honestly.

R_1 · Oct 30, 2016

I would suggest a higher capacity unit, that GPU needs 42A on the 12V rail.
this cannot power the card
https://www.amazon.co.uk/Aerocool-Integrator-500W-Power-Supply/dp/B00JKVHKSU/ref=sr_1_2?ie=UTF8&qid=1477861016&sr=8-2&keywords=aerocool
and neither will this one
https://www.amazon.co.uk/Cooler-Master-RS500-ACABB1-UK-80plus-efficiency/dp/B00N4JRNY0/ref=sr_1_1?ie=UTF8&qid=1477861140&sr=8-1&keywords=CoolerMaster+B500
this unit can handle the card but it costs more, the quality is more than worth the price difference
https://www.amazon.co.uk/Corsair-CP-9020102-UK-CX550M-Semi-Modular-Bronze/dp/B01C3FFLZ8/ref=sr_1_4?ie=UTF8&qid=1477860824&sr=8-4&keywords=CX650M

the CX450M falls short on the 12V rail too

Bart ix 123 · Oct 30, 2016

how about the coolermaster b500 v2? Or the aerocool integrator? Or maybe the EVGA 500/430w?

turkey3_scratch · Oct 30, 2016

Bart ix 123 :

No nothing Aerocool. That thing is a joke. The B500 V2 will work but it's not too reliably built. Spending 10 more euros for the Corsair CX450M gets you way better reliability. Just 25% increase in price gives you probably double the reliability.

Bart ix 123 · Oct 30, 2016

The reviews on the 450M are not that great and shipping will probably cost over 20 euro for the 450m.

turkey3_scratch · Oct 30, 2016

Bart ix 123 :

Don't listen to Amazon or Newegg reviews for PSUs ever.

That is not how PSU quality is determined. Listen to the profesisonals who actually test this stuff. Those people on Amazon very often think their PSU is bad when it isn't, it ends up being the motherboard or they make an error in the building process and blame it on the PSU.

Dark Lord of Tech · Oct 30, 2016

Ireland
http://www.komplett.ie/corsair-cx450m-450-w/20740655/details.aspx
CX450M

or

Ireland
http://www.komplett.ie/seasonic-s12ii-520-520-watt/80038423/details.aspx
Seasonic 520w.

or

Ireland
http://www.komplett.ie/seasonic-m12ii-bronze-evo-edition-520-watt/80014806/details.aspx
M12II 520w

R_1 · Oct 30, 2016

the CX450M can provide 37.4A, the video card requires 42A or am I missing something?
if you put that PSU in with that card, when the card needs power the system will reboot, the CX450M is not a viable unit.

the CX550M or the S12II can power the card if you change the GPU then the issue disappears but the 780 is a hungry card

Bart ix 123 · Oct 30, 2016

blackbird the 450m will be 70 euro w/ post.. Kinda a bad deal..

EDIT:
Just realised that delivery will be free for the CX450M. I guess i will chose that. Thanks guys!

turkey3_scratch · Oct 30, 2016

The GPU is 250W.

Bart ix 123 · Oct 30, 2016

But 450w will it be enough for a 780? The power calculator shows 447w being drawn.

Dark Lord of Tech · Oct 30, 2016

Sorry I missed the 780 in your post , the 450w IS A LITTLE LIGHT , here are the requirements.

A GeForce GTX 780 needs 42 amps on the 12v rail and a 550w - 600w watt power supply with 1 - 6 pin and 1 - 8 pin PCIE power connection.

Bart ix 123 · Oct 30, 2016

The 450 provides the 1 6pin and 1 8pin but only provides 37 amps. Any chance ?

Dark Lord of Tech · Oct 30, 2016

It's too tight , I would go at minimum with a decent 550w.

Bart ix 123 · Oct 30, 2016

How about corsair b500 v2 or evga 500w?

R_1 · Oct 30, 2016

The b500 V2 does not have the amperage 38A to run your 780 42A.
I would not suggest the EVGA 500W it only provides 40A

Dark Lord of Tech · Oct 30, 2016

You need at minimum a very good 550w.

R_1 · Oct 30, 2016

the corsair CX550M has a 45.8A Rail and is the absolute minimum I suggest.

turkey3_scratch · Oct 30, 2016

No the 450W power supply is perfectly fine don't listen to Nvidia's dumb recommendations they don't know crap about your system specs.

Dark Lord of Tech · Oct 30, 2016

Get a 550w , you need it.

turkey3_scratch · Oct 30, 2016

No Blackbird. You are saying something that is not true. If you do the math the CX450M is perfectly fine.

Dark Lord of Tech · Oct 30, 2016

I forgot you think a 450w RUNS any system.

Need a good power supply for my system.

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