There are several red flags on this one:
1)
Money - You get what you pay for with most power supplies, cheap power supplies are never good power supplies. (But equally not all expensive ones are good). I've never seen a £30-50 power supply ever be great quality.
2)
If you can't find any detailed reviews, that's also a red flag, as it means it's likely not a big game player, where they don't often achieve the standards that the industry really requires.
The best and biggest get tested - regularly.
3) I've never heard of Arctic Blue -
if you've never heard of the brand, it's a warning sign. I equally
can't see a spec sheet anywhere that shows it's certification or the make of the components used (not even Caps manufacturer) - which is another big red flag
4) It's that price, for 850W -
there is no way it's a good power supply.
5) You can tell a lot by the quality of a PSU by it's warranty - For example most Seasonics come with 10 or 12 years warranty. Because they arguably are the best. And their units are fantastic quality. For example:
- Corsair VS (poor quality) = 3 years
- EVGA B1 series (E.g. 450B - poor quality) = 3 years
- Corsair RM (decent quality) = 5 years
- Seasonic Focus Plus (great quality) = 10 years
- Corsair AXi (great quality) = 10 years.
- Your PSU (from what I have seen) offers a 1 year warranty - I would avoid it like the plague!
The PSU is the component that supplies power to all other components, so it should be the last component to skrimp on, as a cheap PSU = poor quality PSU = risk to your other components. So I would never personally recommend a PSU below a tier 3 (and even then I will always aim Tier 2+). So it does depend on your budget, but paying more for your PSU on a good quality unit, does ensure the safety of your components and usually gives you a much better warranty. It's not always the case, but more cost
usually means better quality from reputable brands.
I gave some recommendations on a previous post of some top quality PSUs that don't break the bank: