Power Supply Advice

[Oj0]

What do you guys think the typical usage the system in my sig pulls? Not sure which PSU calculator you can trust.

NONE of them.

This rig ran from a single 1200w BeQuiet PSU: Intel Xeon X5690 NVIDIA GeForce GTX 580 - PSU Calculator - Build cBmCNE

 

[Sola Scriptura]

What do you guys think the typical usage the system in my sig pulls? Not sure which PSU calculator you can trust.

What do you use it for most of the time? PSU calcs are fine to figure out what rated PSU you should aim for mor or less.
Best to test the draw from your wall if you have a watt meter.

 

[goldfritter]

What do you guys think the typical usage the system in my sig pulls? Not sure which PSU calculator you can trust.

The only way to know for sure is a Kill-A-Watt meter or similar. But 750W should be totally fine for your build.

 

[durimotara]

NONE of them.

This rig ran from a single 1200w BeQuiet PSU: Intel Xeon X5690 NVIDIA GeForce GTX 580 - PSU Calculator - Build cBmCNE

Wow ok that's crazy that it ran on that :|

 

[durimotara]

What do you use it for most of the time? PSU calcs are fine to figure out what rated PSU you should aim for mor or less.
Best to test the draw from your wall if you have a watt meter.

Just gaming, YouTube and web browsing.

 

[Sola Scriptura]

Just gaming, YouTube and web browsing.

Ull be fine with 750w

 

[ovisser1]

NONE of them.

This rig ran from a single 1200w BeQuiet PSU: Intel Xeon X5690 NVIDIA GeForce GTX 580 - PSU Calculator - Build cBmCNE

What he said.
Just go to the manufacturer page for each component and get the individual power draw.
Add them all up and add 30-50% for overhead (depending on budget - More really is more in PSU worlds) , and you would be golden.

 

[Oj0]

What he said.
Just go to the manufacturer page for each component and get the individual power draw.
Add them all up and add 30-50% for overhead (depending on budget - More really is more in PSU worlds) , and you would be golden.

That's exactly how a PSU calculator works, and exactly how it overshot the actual power draw by 200%. You will NEVER hit max power draw of all components simultaneously.

 

[ovisser1]

That's exactly how a PSU calculator works, and exactly how it overshot the actual power draw by 200%. You will NEVER hit max power draw of all components simultaneously.

100% correct, why I said 30-50%;

PSU is one of the few components that would live longer than most of the rest of the system, so it would help if you spec it a "bit" higher, so you can use the next CPU/GPU lineup should the current budget allow it.

Even if you don't upgrade to something that uses the extra power, you would most likely just be hitting "peak" efficiency on it and saving those extra 10c per hour in electricity costs.


I look at it in this way, if a site that sells PSU's overshoots their "estimated" requirement, they would just make more money by selling you a more expensive PSU. So its better to DIY the calculation than to use theirs.

 

[Crouchinglee]

I just bought my PSU back in the day to handle my GTX480 quad SLI (but due to availability I could only rock 3 ....)

 

[Oj0]

100% correct, why I said 30-50%;

PSU is one of the few components that would live longer than most of the rest of the system, so it would help if you spec it a "bit" higher, so you can use the next CPU/GPU lineup should the current budget allow it.

Even if you don't upgrade to something that uses the extra power, you would most likely just be hitting "peak" efficiency on it and saving those extra 10c per hour in electricity costs.


I look at it in this way, if a site that sells PSU's overshoots their "estimated" requirement, they would just make more money by selling you a more expensive PSU. So its better to DIY the calculation than to use theirs.

In the case above, I'd need to SUBTRACT 66% to get an accurate measurement.

 

[Rickster]

You guys replace PSU's after a certain time ? Wait this is new to me. Should I replace mine since its a bit old?

Mine is going on 11 years now and it's frequently abused, still going strong.

Also on for 24/7 except for loadshedding.

 

[durimotara]

NONE of them.

This rig ran from a single 1200w BeQuiet PSU: Intel Xeon X5690 NVIDIA GeForce GTX 580 - PSU Calculator - Build cBmCNE

Reason why I'm looking into this is that the 6800xt in my rig seems to be tripping my PSUs overcurrent protection. However strangely it only happens when I play warzone. If I play Cold War or Watch Dogs legion I have no issues and can play hours on end without a semi shut down. Over the past month it did happen once in cold war and once in Cyberpunk but never again in those games.

Basically what happens is I hear a trip, lighting etc. switches off for a split second or less even and then comes back on but it fails the reboot. I have to power down and up again to get into Windows. Now I've been reading some stories about how the 3000 series and RX 6000 series have crazy power spikes even beyond their rated wattage and I have found people online with this same issue in Warzone with a 750watt decent brand PSU and what fixed it for them was just upgrading their PSU.

Given that my PSU is so old I just figured that's the culprit however I had an RX 6800 in my rig just before the XT and it ran without a hiccup on this same PSU not but a month ago. I cannot replicate the issue either which has made it hard to diagnose as it can happen in 15mins or an hour of Warzone, its just random. A crash to desktop I can understand as AMD`s GPU drivers have always been shoddy but this is for sure a trip/reboot indicating it has nothing to do with the software (at least in my limited experience).

 

[durimotara]

Ive been crash free for some time now(2 weeks). Clean install of windows, reinstalling drivers and turning resizable bar off seems to have stopped all reboots. Very weird , either way i am eyeing a new PSU regardless as i dont feel comfy knowing how old this one is.

Thanls for all the assistance carbies, appreciate it.