short question

[Palomar]

Does my psu consume the full rated power its rated for when its on or is that just how much it can deliver and if i turn it off do i save power? :3

 

 

[seon123]

The PSU only delivers however much power is needed by the system. Modern PSUs are designed to always be plugged in and powered. They consume very little power when they are plugged in and the system is shut down, around 0,1 W. Flipping the switch on the back will not save a significant amount of power, and all you will achieve is breaking the PSU in a few months.

[minibois]

1 minute ago, Palomar said:

Does my psu consume the full rated power its rated for when its on or is that just how much it can deliver and if i turn it off do i save power? :3

A PSU will only use as much as is needed. A 750W PSU will not use 750W at all times, it will only use as much as needed

[Godlygamer23]

6 minutes ago, Palomar said:

Does my psu consume the full rated power its rated for when its on or is that just how much it can deliver and if i turn it off do i save power? :3

They only consume the required power to run the components. 

[Godlygamer23]

6 minutes ago, seon123 said:

Flipping the switch on the back will not save a significant amount of power, and all you will achieve is breaking the PSU in a few months

Elaborate on this, specifically the second half. 

[dizmo]

4 minutes ago, seon123 said:

The PSU only delivers however much power is needed by the system. Modern PSUs are designed to always be plugged in and powered. They consume very little power when they are plugged in and the system is shut down, around 0,1 W. Flipping the switch on the back will not save a significant amount of power, and all you will achieve is breaking the PSU in a few months.

What? Don't spread lies.

[seon123]

3 minutes ago, Godlygamer23 said:

Elaborate on this, specifically the second half. 

 

8 minutes ago, dizmo said:

What? Don't spread lies.

Spoiler

Quote

Yeah.  It's not the thermistor, but the mechanical bypass relay used to bypass the thermistor.  It's a mechanical part (datasheet for one commonly used:  http://www.hongfa.com/pro/pdf/HF32FA_en.pdf) 

 

They're not going to hold up to constantly flipping the mains power on and off to the PSU.

 

The solution, from a PSU design standpoint, is to replace with a MOSFET, but this costs more.

 

People just need to realize that these parts (the bypass relay) are used to IMPROVE standby efficiency and eliminate the need to constantly shut off their PSU instead of putting the system into standby mode as they are designed to do.

 

I understand that people that don't realize how PSUs work or even how PC's work fear things like vampire power or power surges, but fact of the matter is, one of the reasons you buy a better PSU is so you don't have to worry about these things and stop being so paranoid and flipping off the mains two or three times a day.

https://linustechtips.com/main/topic/890449-rm650x-makes-a-popping-noise/?do=findComment&comment=11781782

https://linustechtips.com/main/topic/994981-corsair-rm650x-keeps-blowing-up/?do=findComment&comment=11967119

 

[dizmo]

2 minutes ago, seon123 said:

 

  Reveal hidden contents

https://linustechtips.com/main/topic/890449-rm650x-makes-a-popping-noise/?do=findComment&comment=11781782

https://linustechtips.com/main/topic/994981-corsair-rm650x-keeps-blowing-up/?do=findComment&comment=11967119

 

Sure, leave out the context bits.

Quote

Has Corsair tested what happens to the NTC Thermistor when you spend 2 years constantly stressing it? That's my only guess why 2 units died like that, other than random failures of course...

So, not a period of months, like you're leading him to believe.

The second quote doesn't state a period of time, and there are many, many other factors that can result in a PSU failing.

It's more likely to be dirty power if he's having them die within a couple of weeks.

[seon123]

1 minute ago, dizmo said:

Sure, leave out the context bits.

So, not a period of months, like you're leading him to believe.

The second quote doesn't state a period of time, and there are many, many other factors that can result in a PSU failing.

It's more likely to be dirty power if he's having them die within a couple of weeks.

Quote

My Corsair RM650x has blown up 3 times in over 12 months, the third time being 2 weeks ago and i still have not been able to find out why

 

Considering OP also used a super low end PSU, which does not have as large bulk capacitors or an NTC thermistor, it could make it less likely that it's just dirty power, and more likely that it's the action of constantly switching the PSU on and off.

[Godlygamer23]

13 minutes ago, seon123 said:

Considering OP also used a super low end PSU, which does not have as large bulk capacitors or an NTC thermistor, it could make it less likely that it's just dirty power, and more likely that it's the action of constantly switching the PSU on and off.

It depends on how often they would do it. You could be striking fear into the OP unnecessarily, especially since you didn't specifically say that switching it on and off constantly can damage a power supply. Your statement appeared to imply(to me) that simply switching it off is damaging it, which it's not. 

[dizmo]

11 minutes ago, seon123 said:

 

Considering OP also used a super low end PSU, which does not have as large bulk capacitors or an NTC thermistor, it could make it less likely that it's just dirty power, and more likely that it's the action of constantly switching the PSU on and off.

Since when is the RM650x a super low end PSU?

[seon123]

1 minute ago, dizmo said:

Since when is the RM650x a super low end PSU?

I was a bit unclear. Their RMx failed, but their super low end PSU (which I was referring to and comparing the RMx) seemingly did not.