good and cheap 650w or 750w psu?

msproject251 · Jun 11, 2016

I need to upgrade my power supply since it's £7 and i want to get it in the 650-750 range, are there any cheap ones which are also good?

anti-duck · Jun 11, 2016

What's your budget mate?

turkey3_scratch · Jun 11, 2016

What is your hardware?

Bearmann · Jun 11, 2016

The EVGA 750W B2 is frequently discounted here, but it doesn't seem to be so in Great Britain. Check this list of tier 1 and tier 2 PSU's:

http://www.tomshardware.com/forum/id-2547993/psu-tier-list.html

You can also have a look at this list:

https://community.newegg.com/eggxpert/computer_hardware/f/135081/t/45344.aspx

msproject251 · Jun 11, 2016

turkey3_scratch :

i7 4790
gtx 750(upgrading to gtx 1080)
some random cheapy 500w psu with no pcie power ports
gigabyte h81m-h motherboard

msproject251 · Jun 11, 2016

https://www.amazon.co.uk/Cooler-Master-RS700-ACABB1-UK-Builder-Warranty/dp/B00MUKL0L6/ref=sr_1_5?ie=UTF8&qid=1465660472&sr=8-5&keywords=750w this any good?

Bearmann · Jun 11, 2016

The GTX 1080 will need about 550W.

turkey3_scratch · Jun 11, 2016

Your rig under full throttle is about 175W, gaming load is more like 125W. With a 1080, it's about a 300W system under full throttle, 250W gaming load about. You don't need a "650W" or "750W" PSU - and even "650W" and "750W" are very generalized numbers. There is no standardization by which labelled wattage is made. If you can get a "450W" PSU that has better ripple suppression and voltage stability under different load scenarios than some competing 750W PSU, why would you not? You are wasting money if you want to spend a ton on a 650W or 750W PSU, which won't even be efficient at all with a 150W-250W rig, causing your electricity bill to actually be a bit higher in addition to the initial cost of the PSU.

There is no benefit to getting a quality "650W" or "750W" PSU over a quality 450W or 550W unit, for instance. There is no such thing as extra power being stored - all that really matters is how the voltage outputs behave and the build quality. One good option is the Corsair RM550x - will be better than the EVGA 750 B2 even though its labelled wattage is 200W lower. That's because labelled wattage really doesn't mean much

The EVGA 550 G2 I think is about $65 on Newegg after a rebate. Might want to snag that.

msproject251 · Jun 11, 2016

Ok everyone this is the psu i have now:http://www.ebay.co.uk/itm/ATX-500-B-500W-PC-Power-Supply-Black-With-24-Pin-3-x-SATA-12CM-Silent-Fan-/401055758695?hash=item5d60c93967:g:-sYAAOSwqrtWmSZw&clk_rvr_id=1044349551055&afsrc=1&rmvSB=true it has no pcie power ports which is the reason i need to upgrade

turkey3_scratch · Jun 11, 2016

Yeah I know you need to upgrade. Here:

PCPartPicker part list / Price breakdown by merchant

Power Supply: EVGA SuperNOVA G2 550W 80+ Gold Certified Fully-Modular ATX Power Supply (£69.47 @ Amazon UK)
Total: £69.47
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-06-11 17:04 BST+0100

Bearmann · Jun 11, 2016

Here are some good choices:

http://uk.pcpartpicker.com/products/compare/antec-power-supply-hcg620m,evga-power-supply-220g20550y1,seasonic-power-supply-ssr550rm,xfx-power-supply-p1550bbefx/

The G2 is probably the best, but the Antec would be fine if you need to save the money.

msproject251 · Jun 11, 2016

i want a cheap one but not a bad one one which is fine for the gtx 1080.

Swordkd · Jun 11, 2016

Other than the Corsair RM and the eVga G2, this is the cheapest Psu I'd recommend:

PCPartPicker part list / Price breakdown by merchant

Power Supply: Fractal Design Integra M 650W 80+ Silver Certified Semi-Modular ATX Power Supply (£63.07 @ More Computers)
Total: £63.07
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-06-11 17:17 BST+0100

Saves a bit of money, and: "Kitguru says: Well built, decent performance and aggressively priced." So a solid unit as well.

turkey3_scratch · Jun 11, 2016

msproject251 :

How can you afford the expensive GTX 1080 but can't afford a quality power supply? If you want to run a high-end graphics card, buy a high quality PSU, or get the GTX 1070 instead.

anti-duck · Jun 11, 2016

turkey3_scratch :

Harsh but so true. If I was spending over 500 quid on a graphics card, I want every bit of protection available to PSU's in my PSU lol.

msproject251 · Jun 11, 2016

turkey3_scratch :

that is because I have £610 and i'm not getting anymore in a while so i need to save money and i'm desperate for a gtx 1080.

turkey3_scratch · Jun 11, 2016

msproject251 :

Save up some more money then, or get a 1070 which is only 20% worse and 60% of the cost. of the price.. A GTX 1080 is minimum £600 so £10 for a PSU is means no options whatsoever.

good and cheap 650w or 750w psu?

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