Is there an easy way to check the compatibility of a psu

[Deleted member 2425197]

As the title says I am searching for an easy way to check te compatibility of a psu.. Is there any?... and if not. How did you guys found your psu.

The system I am planning to build:

i7-8700K
Rog maximus x formula (note: isn't released yet)
Corsair H100i v2
Corsair Vengeance rgb 4x8 ddr4 3600mhz
Samsung 2TB 960 evo m.2 SSD
Samsung 850 evo 2TB 2,5 inch SSD
Asus rog 1080ti oc

Which psu do you recommend me? By myself I was thinking of the SeaSonic Prime 850W Titanuim. But Is there a better one? Or one thats better to use?

Ps: I prefer a titanium one.
Pps: I have a list with all the parts with all the other things like fans and such.. don't think you need it but if so, be free to say it.

 

[Zerk2012]

650 watts would run that PC fine. The model you picked is good.
About all modern power supplies are built to a standard for working with PC parts.
Some are better quality than others and that is about it.

 

[Barty1884]

Compatibility-wise, there's only a couple of standards. The only considerations for "compatibility" are the required connectors for your hardware;
Motherboard: (20/24pin ATX, 4/8pin, or dual 4/8pin EPS)
GPUs: 6, 8 or dual 6/8 PCIe
SSD/HDDs: SATA power

Beyond that, there's the compatibility with your case. Most will use the ATX form factor, although SFX PSUs (just smaller footprints) exist - and OEM systems can use proprietary footprints and connectors.

The biggest consideration (other than compatibility) should be quality. Not all PSUs are created equal, and many junk units exist.

The 850W Prime unit from SeaSonic is great, although probably overkill for that setup.

With that system, you've got a stock (max) power draw of ~400W. A quality 650W unit would allow you sufficient headroom for OCing etc.

I'd look to something like this:
PCPartPicker part list / Price breakdown by merchant

Power Supply: SeaSonic - FOCUS Plus Gold 650W 80+ Gold Certified Fully-Modular ATX Power Supply ($83.99 @ SuperBiiz)
Total: $83.99
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2017-11-17 12:01 EST-0500

You're looking at +$55 for a Titanium unit
PCPartPicker part list / Price breakdown by merchant

Power Supply: SeaSonic - PRIME Titanium 650W 80+ Titanium Certified Fully-Modular ATX Power Supply ($138.99 @ SuperBiiz)
Total: $138.99
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2017-11-17 12:01 EST-0500


You'd take forever to actually get any power-bill savings by opting for Titanium over Gold though.

For example:
500W OC'd power draw running 100% of the time 24/7

Gold is 90% efficiency @ 50% load, 87% at 100% load..... for arguements sake, lets say it's only 87% efficient.
Titanium is 94 @ 50%, 90% @ 100% - again, lets say it's 100% load, so 90% efficient.

The Gold is drawing 575W from the wall, the Titanium is 555W.

20W/ hour difference (worst case), 24/7, 365 days. = 175,200 watts.
175,200 / 1000 = 175.2 kWh. Typically a kWh costs between $0.10 and $0.20 in the US.

Annual additional 'cost' when using Gold over Titanium - again, assuming 100% stressed, 24/7, 365 days.
175.2 x $0.10 = $17.52
175.2 x $0.20 = $35.04

You're looking at a minimum of 2 years before you see any gains from Titanium...... potentially in to year #4 if you're paying closer to $0.1 per kWh - and that's 24/7 100% load, which is not likely to be the case.

 

[Deleted member 2425197]

Thanks for the extensive and fast reply... wattage wise I am still going with the 850W cause later on I will buy an other 1080ti for sli and some overclocking...


Ps: Sorry for my bad English ;P