Is this PSU good for my PC?

[Change_Later]

Hello I recently built a pc with the Corsair 550W Semi-modular PSU but feel it’s a bit too much so I want to swap it out. I put all my pc compenents into OuterVisions PSU calculator and it told me the Load Wattage was 362W and the Recommended PSU Wattage is 412W. I was wondering if the Corsair 450W Fully Modular PSU would be enough to power my pc or should I get a 500W PSU?

Also here my my pc specs (just in case)
- Intel i5 7400
- Be Quiet! Dark Rock 3 CPU cooler
- Gigabyte 1060 Windforce OC 6Gb
- Kingston 120gb SSD
- MSI H270 PC MATE
- NZXT HUE+
- Kingston DDR4 16GB (2x 8Gb)
(And 1 120mm fan and 3 140mm fans)

 

[nitinvaid20]

You should get atleast 500W a good one psu so that in future you can add more stuff like fan led or other but if you already have the 550W then stick with that ?

 

[4745454b]

You are talking about moving down 50-100W. Without knowing which 550W you have it's impossible to say for sure. But I would guess it's not worth the hassle. Moving from a 550W Corsair to a 500W Corsair isn't going to be worth the hassle. And won't change your efficiency probably either. If you bought a 1kW PSU thinking you were going to go SLI and then changed your mind I could see doing that. But I would just use the one you have.

 

[Change_Later]

I was thinking of getting a 450W PSU to cut down of the power bill and keep my current 550W Corsair PSU somewhere around the house so that if I do upgrade my pc i can use it again and won’t have to buy another PSU. Would this work? Is 450W enough or is 500W a better idea?

 

[turkey3_scratch]

Waste of money, just keep your PC as it is, it'll take probably over 2 decades to make up for the cost of buying a second PSU, assuming it even is any more noticeable efficient.

 

[Change_Later]

Ok but just so confirm450W WOULD be enough power right..?

 

[vapour]

GPU 150, CPU 100, Others 50, 300 * 1.25 ~400, yes, 450W is enough, but 550W is safe bet and when PSU ages, it will produce less and less. Your call.

 

[Change_Later]

Perfect, Thank you!

 

[jankerson]

Hello I recently built a pc with the Corsair 550W Semi-modular PSU but feel it’s a bit too much so I want to swap it out. I put all my pc compenents into OuterVisions PSU calculator and it told me the Load Wattage was 362W and the Recommended PSU Wattage is 412W. I was wondering if the Corsair 450W Fully Modular PSU would be enough to power my pc or should I get a 500W PSU?

Also here my my pc specs (just in case)
- Intel i5 7400
- Be Quiet! Dark Rock 3 CPU cooler
- Gigabyte 1060 Windforce OC 6Gb
- Kingston 120gb SSD
- MSI H270 PC MATE
- NZXT HUE+
- Kingston DDR4 16GB (2x 8Gb)
(And 1 120mm fan and 3 140mm fans)

Waste of money.

That 550W PSU isn't drawing 550W from the wall all the time, that's not how it works.

PSU only put out the power the system needs, so if the system needs 350 watts it will supply 350W...

Dropping from a 550W to a 450W will make ZERO difference in your electric bill.

The only real way to make any difference would be to move up to a Titanium rated PSU, but then it would take forever, like decades to make up the cost of buying a new PSU.

I will say it again.....

It's a total waste of money.

 

[4745454b]

Correct. That 550W isn't pulling 550W from the wall at all times. It doesn't work that way. And there is a chance depending on the models that the 450W would be less efficient at providing electricity. If your 550W is a gold rated PSU and the 450W is an 80 bronze, the 550W will use less electricity. As I said, without exact models we can't say for sure. Buying a new PSU that is at best 3% more efficient than the one you have will take "forever" to pay off. Please listen to us, it won't really matter. Unless the 550W you have now is garbage.

Edit: Tackling this from another angle, you don't want to load your PSU above 80% for efficiency reasons. If you really do need 362W, that means you need a 452W PSU. Meaning 362W is 80% of the output of a 452W PSU. This means already you are loading that 450W PSU above 80%. And if you need 400W+, you are going well above 80%. This is considered bad, you never want to run a PSU close to max output. Not if you like your parts in working order.

 

[turkey3_scratch]

This is considered bad, you never want to run a PSU close to max output. Not if you like your parts in working order.

I disagree but that'd be a discussion for another time.

 

[4745454b]

I am aware of that. I disagree with the aim for 50% load, but I personally wouldn't shoot for anything over 80% load. Not if you care about the lifespan of the PSU. Testing for 30-60min at max output is one thing, running a PSU for years at 80-100% is another. As a mod I'm well aware of your thoughts on this, and as you said it's a subject for another time and place.

 

[jankerson]

I am aware of that. I disagree with the aim for 50% load, but I personally wouldn't shoot for anything over 80% load. Not if you care about the lifespan of the PSU. Testing for 30-60min at max output is one thing, running a PSU for years at 80-100% is another. As a mod I'm well aware of your thoughts on this, and as you said it's a subject for another time and place.

The negatives far outweigh the positives, but then there aren't any positives.

There is nothing good about added heat and wear and tear when it comes to electronics.

If it was a positive we would all be running our PCs in a sealed plastic bag with no fans.

Headroom is a good thing.

 

[4745454b]

See above. This isn't the time and place. Meaning drop this now jankerson.