Need PSU recommendation.

[ice856]

My first choise was Seasonic Core Gold GM 650w but every store is out of stock. Based on the cpu tier list, the only alternative that sold in my country and in the same tier as seasonic, is cooler master mwe gold 750, its a little bit pricey but that's the only psu available from tier B.

 

My spec is:

 

Ryzen 5 2400g

Msi b450 a pro max

Corsair vengeance lpx 2x8gb 3200mhz

Samsung 860 evo 250gb

3 1tb mechanical drive

 

If i have the budget im going to add rx580 or rx5500 8gb in the near future, and I've found out that rx580 consume a lot of power. Thats why i choose 650 or 750.

 

Based on spec i mention above do you think 650 is enough? Or is it too much? What would you recommend?

[boggy77]

550W would be enough

[Oswin]

even a decent 450 watt would work fine. any prices on a cx550, pure power 11 500?

[Windows7ge]

650W is more than enough for a build like this. If unit availability is tough where you live the cooler master mwe gold 750 would be fine.

[dfsgsfa]

9 minutes ago, ice856 said:

have the budget im going to add rx580 or rx5500 8gb in the near future, and I've found out that rx580 consume a lot of power.

alot of power = 200w, 

rest of sys is about 100w

400w is more than enough

[ice856]

6 hours ago, boggy77 said:

550W would be enough

 

6 hours ago, dfsgsfa said:

alot of power = 200w, 

rest of sys is about 100w

400w is more than enough

So a Seasonic Focus GX 550w would be enough? and how long will a PSU last? my old power supply seasonic SS 600 ET last for 6 years, then it degrade to the point that i need to remove my r7 260x and use the onboard GPU.

[boggy77]

8 hours ago, ice856 said:

 

So a Seasonic Focus GX 550w would be enough? and how long will a PSU last? my old power supply seasonic SS 600 ET last for 6 years, then it degrade to the point that i need to remove my r7 260x and use the onboard GPU.

the focus gx for example has 10 years of warranty. so if it starts degrading before that, they should replace it for free.

but usually a good quality psu should last its warranty at least.

[ice856]

On 8/19/2020 at 12:01 AM, Windows7ge said:

650W is more than enough for a build like this. If unit availability is tough where you live the cooler master mwe gold 750 would be fine.

I ended up bought the 750w one for this reason

[CometLake]

One question, why get a much larger PSU?

 

I mean is there a reason like efficiency?

 

I just read this text below, and wonder if this is true? Any ideas?

 

"No, an overkill power supply will not damage your PC or waste more energy at idle. PSU's are generally most efficient at half load, so if your machine uses 350 watts max, getting a 650 or 750 watt psu would save energy, and a 1000 watt would waste a little. Beyond that, there's no reason to go small other than size of the actual unit"

 

So If any of these calculators recommend a 650watts PSU for my setup, is it a better idea to get a 750watts power supply?

 

https://outervision.com/power-supply-calculator

https://www.coolermaster.com/power-supply-calculator/

[Ankerson]

4 hours ago, CometLake said:

One question, why get a much larger PSU?

 

I mean is there a reason like efficiency?

 

I just read this text below, and wonder if this is true? Any ideas?

 

"No, an overkill power supply will not damage your PC or waste more energy at idle. PSU's are generally most efficient at half load, so if your machine uses 350 watts max, getting a 650 or 750 watt psu would save energy, and a 1000 watt would waste a little. Beyond that, there's no reason to go small other than size of the actual unit"

 

So If any of these calculators recommend a 650watts PSU for my setup, is it a better idea to get a 750watts power supply?

 

https://outervision.com/power-supply-calculator

https://www.coolermaster.com/power-supply-calculator/

 

If the recommend 650W there is no issue to go with a 750W PSU to get more headroom for future upgrades.

 

Also with the better PSU's they have long warranties so they will last through 2 or more builds so there is that to think about.

 

Nobody knows what they might need say 8 years in the future wattage wise... With the 10 and 12 year warranties with some PSUs.....

 

Or even 3 years really, new GPU comes out and that lower wattage PSU isn't enough so you have to buy BOTH the GPU and a new PSU to run it....

 

Smart logic says get a good PSU and leave some room wattage wise..... Can save money in the long run...