R9 390 Help

[nialdz]

Hey guys, I'm new to the forum but love LMG.

Anyways, right now I have an FX 6100 @4.4ghz, 16GB RAM, HD 7850 2GB, and a 600 Watt Corsair PSU

 

My question is, would 600 watts be sufficient for the 390 and the OC on my 6100?

[Ddave]

520W is enough for me.

No OC though.

[Guest]

Sounds sufficient...only recommendation would be 80+ Silver or higher

[nialdz]

2 minutes ago, jkeasley said:

Sounds sufficient...only recommendation would be 80+ Silver or higher

Sadly it's an 80+ bronze.

But I should be fine, right?

[Guest]

15 minutes ago, nialdz said:

Sadly it's an 80+ bronze.

But I should be fine, right?

Yeah....as far as I know....my friend has a 600W and it should be fine

[Conan1600]

1 hour ago, nialdz said:

Hey guys, I'm new to the forum but love LMG.

Anyways, right now I have an FX 6100 @4.4ghz, 16GB RAM, HD 7850 2GB, and a 600 Watt Corsair PSU

 

My question is, would 600 watts be sufficient for the 390 and the OC on my 6100?

sadly no is your answer. the reccomended PSU for a 390 non x is 650 watts without any OC. to be sure they over do it just a bit but honeatly i would go with something in the 750 range to give you some head room for OCing and breathing room...... ALSO some people seem to have a misconception of what 80+ bronze etc means...that is JUST an efficiency rating it will still go to the max wattage no matter the efficiency rating it will merely use less electricity to do so on a higher rated PSU. 

[HKZeroFive]

I honestly don't know what some of these people are talking about because 600W can easily handle an overclocked R9 390. You can run a R9 390 on a good quality 500W PSU.

 

That being said, when I hear 80+ Bronze and Corsair, I assume you have the CX600. Don't overclock, that PSU is simply not good enough in quality and I wouldn't risk it.

[HKZeroFive]

1 hour ago, Conan1600 said:

sadly no is your answer. the reccomended PSU for a 390 non x is 650 watts without any OC. to be sure they over do it just a bit but honeatly i would go with something in the 750 range to give you some head room for OCing and breathing room...... ALSO some people seem to have a misconception of what 80+ bronze etc means...that is JUST an efficiency rating it will still go to the max wattage no matter the efficiency rating it will merely use less electricity to do so on a higher rated PSU. 

Two things:

 

-600W is enough for an overclocked 390. Don't know where you got the idea that it's not enough. Hell, a good 500W can run the R9 390 fine.

 

-A PC will only draw as much power as it needs. From the way you're writing, I'm assuming that you think that every PSU will go to its max limit (in this case, you're saying a 600W PSU draws a constant 600). Sorry, but that's wrong.

 

[Conan1600]

9 minutes ago, HKZeroFive said:

Two things:

 

-600W is enough for an overclocked 390. Don't know where you got the idea that it's not enough. Hell, a good 500W can run the R9 390 fine.

 

-A PC will only draw as much power as it needs. From the way you're writing, I assuming that you think that every PSU will go to its max limit (in this case, you're saying a 600W PSU draws a constant 600). Sorry but that's wrong.

 

you couldn't be more wrong in everything you wrote. the MANUFACTURER of the 390 recommends a 650 watt psu just because you get away with something does not mean you should. as for the way a psu works ALL psu's should reach their stated max wattage if needed but you do not want to stresa therefore you should over size a bit. the op stated that he wanted OC both the cpu and gpu therefore he need headroom. yes a psu only draws what it needs bit you dont want to be maxing it all the time. i have been doing this 40 years. how bout you?     http://www.realhardtechx.com/index_archivos/Page362.htm   here is a good psu chard for you it does have the ops desired gpu on it

[HKZeroFive]

Just now, Conan1600 said:

you couldn't be more wrong in everything you wrote. the MANUFACTURER of the 390 recommends a 650 watt psu just because you get away with something does not mean you should. as for the way a psu works ALL psu's should reach their stated max wattage if needed but you do not want to stresa therefore you should over size a bit. the op stated that he wanted OC both the cpu and gpu therefore he need headroom. yes a psu only draws what it needs bit you dont want to be maxing it all the time. i have been doing this 40 years. how bout you?

Yeah, doing this for 40 years are you're saying a 600W PSU can't handle a R9 390...

 

GPU and PSU manufacturers tend to overestimate the required wattage. Maybe look at some real world benchmarks and see how much a R9 390 draws? People like to exaggerate power consumption, 750W is way too much for one single overclocked 390.

[Conan1600]

so i just did the load calculation for you. if you run a fx 6100 5 fans including cpu fan 2 hard drives at 7200rpm, 4 sticks of STANDARD ram, NO USB devices, a STANDARD MB and you are at max cpu that is 213 watts plus the r9 390 acording to AMD is a 300 watt card so that comes to 513 watts with NO OC'S ON ANYTHING and no usb devices plugged in.

if you add OC on CPU, RAM, and GPU plug in an extenal usb hard drive add in a wifi card plug up a pcie ssd or any other modern niceity that we tinkerers like you max real fast. now you can build any way you like but im not going to build for running at peak nor would i tell anyone else to