Need a cheap PSU for this build

[iThingy]

Hi there, I have this build (https://uk.pcpartpicker.com/user/TheAquaarius/saved/#view=jzWHxr)
im trying to go as budget as possible, I already have the case, RAM and motherboard. Im planning to get the other parts listed in the build so now I just need a power supply which is compatible with all them at a very cheap price.

 

[KR2]

Get a corsair CX430. - PSU

 

[Isokolon]

Get a corsair CX430. - PSU

terrible PSU mate.
not worth the money they're charging for.

best bet is either the updated CXM with DC-DC converters and at least some good caps, like the CXM450 / CX450M
or the truly excellent Seasonic S12G or a Super Flower Golden Green HX

 

[dudmont]

I'd recommend buying the best PSU that your budget allows. The most important item in your build. Here's the tier chart. http://www.tomshardware.co.uk/forum/id-2547993/psu-tier-list.html Don't buy anything worse than a tier 3. Scrimp somewhere else, not on the PSU. Can't tell you how many people come on the forums asking why their system shuts down randomly or asking what the funny smell is in their case and why their system now won't turn on. I would not recommend a cx series from Corsair, it's a tier 4 and has caused many a person headaches.

 

[iThingy]

Thanks for the help everyone, I think ill put a bit more money in and get something off a good tier on that list.

 

[geofelt]

There is no such thing as a cheap psu.
A cheap PSU will be made of substandard components. It will not have safety and overload protections.
If it fails under load, it can destroy anything it is connected to.
It will deliver advertised power only at room temperatures, not at higher temperatures found when installed in a case.
The wattage will be delivered on the 3 and 5v rails, not on the 12v rails where modern parts
like the CPU and Graphics cards need it. What power is delivered may fluctuate and cause instability
issues that are hard to diagnose.
The fan will need to spin up higher to cool it, making it noisy.
A cheap PSU can become very expensive. Do not buy one.

Your psu need is gated by the graphics card.
You indicate a 7870 which is relatively power hungry, needing two 6 pin pcie power connectors.
That is typically available on a 500w psu.
I might suggest a tier 2 Seasonic S12II 520w unit for $30 after rebate:
https://www.newegg.com/Product/Product.aspx?Item=N82E16817151094

I might have suggested a more modern similarly performing GTX1050

FWIW

I will never again build without a ssd for the "C" drive. It makes everything you do much quicker.
120gb is minimum, it will hold the os and a handful of games.
But, many things default to the "C" drive.
When a SSD nears full, it will lose performance and endurance.
240gb is the recommended minimum.

If you can go 240gb, or 500gb you may never need a hard drive.

You can defer on the hard drive unless you need to store large files such as video's.
It is easy to add a hard drive later.

Samsung EVO is a good choice for performance and reliability.

Do some shopping; I found this 240gb Samsung 750 evo for $47.
https://raceprotax.com/products.php?product=Samsung-%252d-750-EVO-250GB-Internal-SATA-Solid-State-Drive-for-Laptops-%252d-Black

 

[Karadjgne]

Using a HD7870 you'll want to be in the 500w and up range.
PCPartPicker part list / Price breakdown by merchant

Power Supply: Corsair - CXM 550W 80+ Bronze Certified Semi-Modular ATX Power Supply (£64.80 @ Alza)
Total: £64.80
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2017-07-01 14:39 BST+0100

 

[iThingy]

Thank you both for the extra information, but will the power supplies you have listed fit in my case?

This is my case, https://cougargaming.com/en/products/cases/qbx/

 

[Karadjgne]

Yes, that Cougar fits standard ps/2 ATX Power supplies. It's actually a quite 'cute' case heh.

 

[Isokolon]

Any ATX PSU with up to 140mm length is fine according to the two reviews I checked.
This limits you to one of the following units:

Corsair CXM 2016 (grey)
Cooler Master V or VS
Antec Truepower Classic
Seasonic S12G
XFX TS Gold

If you can afford it the Cooler Master PSUs are the way to go.

 

[iThingy]

Ill probably go for this power supply that geofelt mentioned because the price fits nicely in my budget.
Thank you all for the help
https://www.newegg.com/Product/Product.aspx?Item=N82E16817151094

 

[geofelt]

Measure the opening in your case.
A standard ATX psu will be 85mm x 150mm at the opening, and have a depth varying from 140mm to 180mm.

The Seasonic, I think is one of the shorter units at 140mm.

 

[Karadjgne]

Part of accountability for psu length will be the distance between the bottom of the psu and the top of the gpu, the more room there, the better as you'll have power wires facing down and making a sharp turn towards the inside. Last thing you want is those wires putting pressure on the gpu, that stresses both the gpu and the pcie x16 socket. Go with the shorter psus if available. The Corsair CXM 550W is 140mm.

 

[Isokolon]

I would suggest at least a semi modular unit in a cramped up space like that

 

[Karadjgne]

Hard to guage that, sometimes the modular plugs make the wire stick out further from the psu before being able to get a good 90° bend in than hardwires on a standard psu, which can bend almost right at the grommet.