Power supply?

[TheRedBarron]

Why do I need to spend money on a power supply? Everywhere I look people are recommending £70 power supplies and people say corsiars vs series aren't good and you shouldn't use them but why? What are the differences between good and bad psus?

[minibois]

Just now, TheRedBarron said:

Why do I need to spend money on a power supply? Everywhere I look people are recommending £70 power supplies and people say corsiars vs series aren't good and you shouldn't use them but why? What are the differences between good and bad psus?

- A PSU powers your entire system. If anything goes wrong, it could definitely take components with it

- The Corsair VS is generally poor for higher end hardware and also quite noisey

[TheRedBarron]

1 minute ago, minibois said:

- A PSU powers your entire system. If anything goes wrong, it could definitely take components with it

- The Corsair VS is generally poor for higher end hardware and also quite noisey

How likely is your psu failing and taking parts with it?

 

[Guest]

3 minutes ago, TheRedBarron said:

How likely is your psu failing and taking parts with it?

 

About as likely as a car running a red light in front of you, you're not wearing your seat belt and you going through the windshield.

 

So why take the chance?

[Guest]

5 minutes ago, minibois said:

- A PSU powers your entire system. If anything goes wrong, it could definitely take components with it

- The Corsair VS is generally poor for higher end hardware and also quite noisey

It's "poor performing" depending on the hardware.  But it's not a fire hazard.  There are some down right fire hazards out there.

[TheRedBarron]

1 minute ago, jonnyGURU said:

About as likely as a car running a red light in front of you, you're not wearing your seat belt and you going through the windshield.

 

So why take the chance?

About as likely a car running a red light and me not wearing a seat belt Oris the seat belt the PSU and it's as likely as a car running a red light?

[TheRedBarron]

1 minute ago, jonnyGURU said:

It's "poor performing" depending on the hardware.  But it's not a fire hazard.  There are some down right fire hazards out there.

Buy what does poor performance mean?

[minibois]

3 minutes ago, TheRedBarron said:

How likely is your psu failing and taking parts with it?

Gambling is something you do with playing cards, not PC parts.

 

You should always choose a PSU fit for your PC parts. Cheaping out can lead to all kinds of weird issues (the PSU failing and taking components is the worst outcome)

1 minute ago, jonnyGURU said:

It's "poor performing" depending on the hardware.  But it's not a fire hazard.  There are some down right fire hazards out there.

Yea, it's generally poor, but not like.. Bad. It depends on the PC it is run in.

I find it a bit hard to recommend when an equivalent W CX PSU usually costs about 10 USD more than the VS. But it depends on the PC it has to power

[Fasauceome]

Just now, TheRedBarron said:

Buy what does poor performance mean?

bad voltage control, bad temps, loud fan, there are a lot of PSU problems that can show up which are not things you would see when booting up your system but can cause problems in the future. Spending money on a quality unit is a great investment for your system, especially if you plan to upgrade in the future,

[TheRedBarron]

1 minute ago, minibois said:

Gambling is something you do with playing cards, not PC parts.

 

You should always choose a PSU fit for your PC parts. Cheaping out can lead to all kinds of weird issues (the PSU failing and taking components is the worst outcome)

Yea, it's generally poor, but not like.. Bad. It depends on the PC it is run in.

I find it a bit hard to recommend when an equivalent W CX PSU usually costs about 10 USD more than the VS. But it depends on the PC it has to power

I guess I just don't understand why a PSU that doesn't blow up costs as much as my ram?

[Guest]

1 hour ago, TheRedBarron said:

I guess I just don't understand why a PSU that doesn't blow up costs as much as my ram?

You have cheap RAM too? 

 

A PSU doesn't typically cost more than RAM.  LOL!

 

What's your complete system specs and your location?

 

[TheRedBarron]

14 minutes ago, jonnyGURU said:

You have cheap RAM too? 

 

A PSU doesn't typically cost more than RAM.  LOL!

 

What's your complete system specs and your location?

 

Rx 5700xt 

Ryzen 5 3600

Cx 550m

Corsair vengeance lpx 3600/3200 (haven't decided)

Phantex p300a

B450 gaming plus max

[Guest]

3 minutes ago, TheRedBarron said:

Rx 5700xt 

Ryzen 5 3600

Cx 550m

Corsair vengeance lpx 3600/3200 (haven't decided)

Phantex p300a

B450 gaming plus max

What's wrong with your CX550M?  That's a decent PSU for that build.

 

Only draw back is that it's double forward.  I haven't had time to test RX 5700XT with one yet.  If you're in the U.S., you might not be able to get the TX550M, but in other parts of the world, the TX550M is not much more expensive and is a much better PSU.

 

But if you have a $400 graphics card, you should protect it with a quality PSU.

[TheRedBarron]

1 minute ago, jonnyGURU said:

What's wrong with your CX550M?  That's a decent PSU for that build.

There's nothing wrong with it and I got found it at a good price but it's still like £70 Wich is nearly as expensive as the 3200 ram. I just don't get why psus are so expensive

[Guest]

Just now, TheRedBarron said:

There's nothing wrong with it and I got found it at a good price but it's still like £70 Wich is nearly as expensive as the 3200 ram. I just don't get why psus are so expensive

Ok.  So you're in the UK?

 

You get what you pay for.  I mean.. Seriously   You have a $400 graphics card. 

 

[TheRedBarron]

29 minutes ago, jonnyGURU said:

Ok.  So you're in the UK?

 

You get what you pay for.  I mean.. Seriously   You have a $400 graphics card. 

 

My question is simply what does the money go to?

[Guest]

1 hour ago, TheRedBarron said:

My question is simply what does the money go to?

Tighter voltage regulation, lower ripple/noise, higher efficiency, better fan with better, longer lasting bearing, better quality components (i.e. the MOSFETs, capacitors, magnetics, etc.

 

You should look for some reviews.  They can be informative for someone asking the questions you're asking.

 

This is the 750W and not your 550W, but it's a start:  http://www.jonnyguru.com/blog/2016/09/12/corsair-cx750m-v2-power-supply/

 

[TheRedBarron]

1 hour ago, jonnyGURU said:

Tighter voltage regulation, lower ripple/noise, higher efficiency, better fan with better, longer lasting bearing, better quality components (i.e. the MOSFETs, capacitors, magnetics, etc.

 

You should look for some reviews.  They can be informative for someone asking the questions you're asking.

 

This is the 750W and not your 550W, but it's a start:  http://www.jonnyguru.com/blog/2016/09/12/corsair-cx750m-v2-power-supply/

 

What do these offer me as a customer. Why do I want tighter voltage regulations,lower ripple or longer lasting bearings?

[Guest]

1 hour ago, TheRedBarron said:

What do these offer me as a customer. Why do I want tighter voltage regulations,lower ripple or longer lasting bearings?

Well.. the fan is the first thing to die in almost any power supply.

 

As for the lower ripple and better regulation:  Whatever voltage isn't properly regulated to its median value is up to the VR's on the motherboards, graphics card, etc. to regulate.  And any ripple that isn't filtered out to the components need to be filtered out by the components.

 

If they're not regulated or filtered at the components, the components fail over time.

 

Unfortunately, the component manufacturers have become somewhat complacent and reliant on quality power delivery.  I don't remember who it was, but one of the PSU manufacturers that make cheaper PSU actually publicly out-cried that the reason PSU costs wen't up is because they're making components like motherboards and GPU's cheaper and not able to stabilize voltages as well as they did 20 years ago when cheap power supplies were pretty common.

 

I can say that I got into reviewing power supplies, and eventually work in the power supply industry, not because I'm an EE, but because I was a comptuer tech (15 years ago) that wanted to figure out why some customers that bought a lot of the motherboards and graphics cards we typically had no problems with would end up returning their motherboards and graphics cards within a year.  After much investigation, I found that it was because the power supply was delivering such poor power that the motherboards and graphics cards couldn't compensate and eventually died trying.