Help choosing a PSU

seth2012 · May 2, 2021

Hello people, my first post here and hope everyone's well and healthy.

When I first built my PC on a budget my PSU came with the Chinese made case and is a 650W 80+ bronze no name Chinese brand one.

I upgraded a few parts like the case, GPU etc and I want to get rid of the PSU and get a new one. I got Ryzen 5 3600X, MSI 2070 Super Gaming X(want to upgrade with 30 series 3070 most likely when I won't have to pay an arm and a leg for it) and plan to get a 750W or preferably an 850W PSU to be more future proof. I checked the tier list in the forum to narrow my option so thanks to everyone that had a part in making the list. Here are the options that I am left with so which one of these would you recommend? My building's electrical system is not very stable so I feel like a multi rail one would be a safer pick for OCP but not very knowledgable about the multi rail vs single rail advantages and disadvantages.

FSP Hydro G Pro HG2-750 750W: Seems like the least favored one of my options but generally praised for the build quality.

Corsair RM750x White: Fits the white theme of my build and is generally praised.

NZXT C850 850W: Would prefer for being 850W but single rail

Be quiet! Straight Power 11 750W 80+ Gold: Multi rail but would prefer an 850W but can't find one

MSI MPG A850GF 850W: 850W, multi rail... Apart from being black in a white build ticks all the boxes but I can't get myself to trust MSI for a PSU (yeah I use an MSI GPU and trusted a no name Chinese PSU for months but still...)

Thanks everyone in advance

seon123 · May 2, 2021

26 minutes ago, seth2012 said:

My building's electrical system is not very stable so I feel like a multi rail one would be a safer pick for OCP but not very knowledgable about the multi rail vs single rail advantages and disadvantages.

"Single rail" is just a nice way of saying that they cheaped out by omitting multi rail OCP on the 12V rail. It's the equivalent of having the entire house run use a single breaker, rather than one breaker per room.

If you're worried about the building's electrical system, look for a UPS or a surge protector.

27 minutes ago, seth2012 said:

MSI MPG A850GF 850W: 850W, multi rail... Apart from being black in a white build ticks all the boxes but I can't get myself to trust MSI for a PSU (yeah I use an MSI GPU and trusted a no name Chinese PSU for months but still...)

If these are literally the only options, and they all cost exactly the same, then this one is likely the best. MSI doesn't manufacture the PSU, CWT does. That's the same OEM as for the RMx. If you really want a white PSU, then the RM750x is already more than fine.

Spotty · May 2, 2021

19 minutes ago, seth2012 said:

My building's electrical system is not very stable so I feel like a multi rail one would be a safer pick for OCP but not very knowledgable about the multi rail vs single rail advantages and disadvantages.

Multi rail and single rail are relating to the DC output to the system. Multi rail splits the 12V up in to multiple 12V rails that each have OCP (over current protection). Being multi rail or single rail will make absolutely no difference if your building has dodgy mains AC electricity. What you need is to filter the power before it gets to the power supply. Get a good quality UPS (uninterruptible power supply) to provide power to the computer and monitors. Depending what sort of issues you have with your electrical supply will determine what sort of UPS you will need.

seth2012 · May 2, 2021

9 hours ago, seon123 said:

"Single rail" is just a nice way of saying that they cheaped out by omitting multi rail OCP on the 12V rail. It's the equivalent of having the entire house run use a single breaker, rather than one breaker per room.

If you're worried about the building's electrical system, look for a UPS or a surge protector.

9 hours ago, Spotty said:

Multi rail and single rail are relating to the DC output to the system. Multi rail splits the 12V up in to multiple 12V rails that each have OCP (over current protection). Being multi rail or single rail will make absolutely no difference if your building has dodgy mains AC electricity. What you need is to filter the power before it gets to the power supply. Get a good quality UPS (uninterruptible power supply) to provide power to the computer and monitors. Depending what sort of issues you have with your electrical supply will determine what sort of UPS you will need.

Thank you both for the info, I use a UPS and surge protecting plugs with circuit breakers I thought " you can never be too safe" but it seems it doesn't make much difference for the OCP. The building management will completely overhaul the electrical system too actually but there's no timeframe for that so don't know when...

9 hours ago, seon123 said:

If these are literally the only options, and they all cost exactly the same, then this one is likely the best. MSI doesn't manufacture the PSU, CWT does. That's the same OEM as for the RMx. If you really want a white PSU, then the RM750x is already more than fine.

FSP one is quite cheaper and the others are pretty much the same price. I had other options but narrowed them down using the tier list here but if you have other suggestions I can check them out. If MSI is the best option as long as not being picky about the color guess I'd go for performance rather than the color. Thank you.