High quality 500w PSU safe?

[Guest]

Is a high quality 500w Psu from be quiet safe for use with a r7 1800x and vega 64? It'd only be temporary till the prices for power supply are lower again, so non-oc or even slight underclock is fine for the short period

[Oswin]

which "high quality" unit?

[Haro]

brand, efficiency and wattage are not quality.

is it a pure power 11 500w?

[Guest]

3 minutes ago, TofuHaroto said:

brand, efficiency and wattage are not quality.

is it a pure power 11 500w?

Yes

[Haro]

10 hours ago, rebmem rehtona yb esu ni said:

Yes

the pure power 11 should be more than fine. 

[Guest]

4 minutes ago, Oswin said:

which "high quality" unit?

pure power 11 500w

[Guest]

Just now, TofuHaroto said:

the pure power 11 should be more than fine. 

by "more than fine" do you mean it would also work with overclocked cpu/gpu?

[nox_]

1 minute ago, rebmem rehtona yb esu ni said:

by "more than fine" do you mean it would also work with overclocked cpu/gpu?

Yes.

[Haro]

10 hours ago, rebmem rehtona yb esu ni said:

do you mean it would also work with overclocked cpu/gpu?

the wattage is fine, and yes it should be enough. 

[Guest]

Just now, nox_ said:

Yes.

Really? Be quiets own calculator says for this configuration overclocked you would need 650w. Or is that just extra high as a precaution?

[Haro]

10 hours ago, rebmem rehtona yb esu ni said:

Be quiets own calculator

wattage calculators are not right most if not all the time.

[nox_]

Just now, rebmem rehtona yb esu ni said:

Really? Be quiets own calculator says for this configuration overclocked you would need 650w. Or is that just extra high as a precaution?

https://www.tomshardware.com/reviews/amd-ryzen-7-1800x-cpu,4951-11.html

https://www.tomshardware.com/reviews/amd-radeon-rx-vega-64,5173-17.html

Just take a look at power consumption, no need to worry.

[Guest]

Just now, TofuHaroto said:

wattage calculators are not right most if not all the time.

And if something goes wrong the psu would protect other parts from being damaged and only kill itself, right?

[DJ46]

Now now, while I agree that with most systems a suprisingly low wattage PSU can be enough, with Fury, Vega and similar class GPUs you have to think about the power spikes.

There are issues with Seasonic PSUs that have a precise over power protection circuit and shut off the system when such a spike occurs, even with a unit twice as powerful as yours.

 

I'm not saying it won't work, but that others here should do a bit more research and check the OPP limits on the Bequiet PSU and measured power spikes on a Vega 64 before going with the same old advice.

[Haro]

10 hours ago, rebmem rehtona yb esu ni said:

And if something goes wrong

the psu has the proper protections. 

what do you mean by "goes wrong" exactly?  

[Guest]

Just now, DJ46 said:

Now now, while I agree that with most systems a suprisingly low wattage PSU can be enough, with Fury, Vega and similar class GPUs you have to think about the power spikes.

There are issues with Seasonic PSUs that have a precise over power protection circuit and shut off the system when such a spike occurs, even with a unit twice as powerful as yours.

 

I'm not saying it won't work, but that others here should do a bit more research and check the OPP limits on the Bequiet PSU and measured power spikes on a Vega 64 before going with the same old advice.

According to the link nox send the power spike is only 380w for 50ms, so I guess it will work...

[Guest]

Just now, TofuHaroto said:

the psu has the proper protections. 

what do you mean by "goes wrong" exactly?  

If it does draw more power than the psu can handle

[Haro]

10 hours ago, rebmem rehtona yb esu ni said:

If it does draw more power than the psu can handle

then OPP protection will trigger and the psu will shut it self off. 

[Guest]

Just now, TofuHaroto said:

then OPP protection will trigger and the psu will shut it self off. 

And that sudden power loss wont damage the pc?

[Haro]

10 hours ago, rebmem rehtona yb esu ni said:

And that sudden power loss wont damage the pc?

nope for the most part.

[DJ46]

8 minutes ago, rebmem rehtona yb esu ni said:

And that sudden power loss wont damage the pc?

You could lose some data if you're unlucky, but if you don't have an important and unsaved document open while gaming the risk is minimal.

 

Your PSU does seem to have the required OPP headroom, but I have to wonder how the 12V rails are setup and which connectors are on which rail. One goes up to 336W and the other to 240W, so if both GPU power connectors run from one rail there could be an issue.

[boggy77]

the 1800x can draw up to 140W under extreme load.

the vega 64, up to 300W.

the rest of your system- no more than 50W

 

So in total you're looking at 500W max under torture load (prime 95 + Furmark)

[DJ46]

(accidental post)

[Guest]

On 7/24/2020 at 1:13 PM, nox_ said:

https://www.tomshardware.com/reviews/amd-ryzen-7-1800x-cpu,4951-11.html

https://www.tomshardware.com/reviews/amd-radeon-rx-vega-64,5173-17.html

Just take a look at power consumption, no need to worry.

Sorry for reviving this thread a few days later, but I just wanted to ask if it makes a difference which Vega 64 I'm using or if they all have the same power draw. My vega 64 is a sapphire nitro+ (the original version of this even came with 3x8pin power) and Im not sure if the link you send applies to this aswell. 

[Haro]

10 hours ago, rebmem rehtona yb esu ni said:

My vega 64 is a sapphire nitro+ (the original version of this even came with 3x8pin power) and Im not sure if the link you send applies to this aswell. 

the psu will power it just fine.