Will a 400 Watt PSU work?

felixxkoehler

Prominent
Oct 19, 2017
17
0
510
I'm building my first Gaming PC from used components and I wanted to know if a 400 Watt is enough to handle the system overclocked. If not which power supply should I pick?

My specs:

CPU: AMD Phenom​ II X4 960​T
GPU: MSI - GeForce GTX 760 2GB TWIN FROZR
PSU: LC Power LC8400P (400 Watt)
MoBo: Gigabyte - GA-970A-UD3P
RAM: Corsair - XMS3 4GB (2 x 2GB) DDR3-1333 + 4GB DDR3-1333 (no-Name)
CPU Cooler: Scythe Shuriken
HDD: 1TB
 
Solution
I would not use that PSU; it's a known garbage-tier brand. Maybe in a light office rig on a very strict budget, but not in a PC with a dedicated GPU and certainly never in an overclocking scenario. It's not even a bad 400W PSU, it's a bad 280W because of the ancient design that has a rail distribution that PCs haven't favored since the 1990s.

These are the least expensive PSUs I'd let touch anything I own.

PCPartPicker part list / Price breakdown by merchant

Power Supply: SeaSonic - S12II 520W 80+ Bronze Certified ATX Power Supply ($38.99 @ SuperBiiz)
Total: $38.99
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2017-10-19 15:20 EDT-0400...

DSzymborski

Curmudgeon Pursuivant
Moderator
I would not use that PSU; it's a known garbage-tier brand. Maybe in a light office rig on a very strict budget, but not in a PC with a dedicated GPU and certainly never in an overclocking scenario. It's not even a bad 400W PSU, it's a bad 280W because of the ancient design that has a rail distribution that PCs haven't favored since the 1990s.

These are the least expensive PSUs I'd let touch anything I own.

PCPartPicker part list / Price breakdown by merchant

Power Supply: SeaSonic - S12II 520W 80+ Bronze Certified ATX Power Supply ($38.99 @ SuperBiiz)
Total: $38.99
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2017-10-19 15:20 EDT-0400

PCPartPicker part list / Price breakdown by merchant

Power Supply: Corsair - CX (2017) 450W 80+ Bronze Certified ATX Power Supply ($43.98 @ Newegg)
Total: $43.98
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2017-10-19 15:21 EDT-0400

Neither are amazing as this SeaSonic is an older platform and this Corsair is a modern platform but with good rather than great internals. But they're good on a budget, both far less likely to either make the internals of your PC look like a Michael Bay movie or slowly damage your parts over time than a junk PSU.
 
Solution

felixxkoehler

Prominent
Oct 19, 2017
17
0
510


Will a 550 Watt Rasurbo Silent & Power DLP 55.1 OR a FUSION 550R OR a LC6550 be enough (all of them are 550 Watt)?

And thanks for the answer my initial question.
 

SneakLerd

Commendable
Feb 7, 2017
95
0
1,660


CPU = 95W
GPU = 175W
HDD = 15W
=285W
But your GPU recommends 500W
So as long as you're over 500W, you're most likely good to go. In consideration that you have not planned to do mad OC.
 

DSzymborski

Curmudgeon Pursuivant
Moderator


The LC Power is garbage. Any and all.

The Rasurbo is an old HEC platform with poor voltage regulation and bad filtering.

If the FUSION 550R refers to the old Arctic one made by SeaSonic, it's unlikely to be terrible. But it's an ancient platform with some poor capacitor selection, especially for SeaSonic. Any one of these that exists has either been sitting in a factory for a *long* time or has been used way past its life expectancy.

The PSUs I listed are far better than the first two and better than the third one. The power supply is the most important part of the PC and the very, very last place to be putting in a mediocre used part from 2009 to save a few bucks.
 

felixxkoehler

Prominent
Oct 19, 2017
17
0
510


Ok Thanks, I guess I'm going to buy one of the PSU's you recommended me.