650W psu enough for fx 9370 + GTX 980?

Exzec

Reputable
Oct 22, 2014
7
0
4,510
Hi i would like to know if my 650 watt gold psu will run my fx 9370 cpu @ 4,4ghz and a GTX 980?

Psu: corsair 650 rm series gold +
MB: asus m5a99fx r 2.0
Cpu: amd fx 9370@ 4.4ghz
Gpu: radeon HD 7870
ram: 2x8gb 1600
2 ssd and 1 hdd
6 led and 2 high performance fans
 
Solution
Cpu + OC = @300w
Mobo + accessories = @100w
Gpu = @165w

System power you are looking at normal power usage during intense gaming somewhere around 550-560w, so theoretically the RM650 should be fine. However, its an RM series Corsair psu, the whole line of which is known to be plagued with poor choices in capacitors on the secondaries and really bad thermal properties. The outputs however, were top ranked, so as long as the unit wasn't stressed close to 100% output, it ran fine. The 750/850w units built by Chicony are the exception. They are abysmal and couldn't finish the stress tests due to thermal shutdowns before even reaching 100% load.

Your RM650 should be ok as it's only going to run @75% load at best, but I'd still be careful...
Cpu + OC = @300w
Mobo + accessories = @100w
Gpu = @165w

System power you are looking at normal power usage during intense gaming somewhere around 550-560w, so theoretically the RM650 should be fine. However, its an RM series Corsair psu, the whole line of which is known to be plagued with poor choices in capacitors on the secondaries and really bad thermal properties. The outputs however, were top ranked, so as long as the unit wasn't stressed close to 100% output, it ran fine. The 750/850w units built by Chicony are the exception. They are abysmal and couldn't finish the stress tests due to thermal shutdowns before even reaching 100% load.

Your RM650 should be ok as it's only going to run @75% load at best, but I'd still be careful of temps from the psu.
 
Solution




the rm 650 is in tier two class A wich is not bad + ive never had any problems so far with my psu.. and that was not the question i asked but thx for the info.
 
The RM650 has at its core a very well designed board, its ripple suppression, amperage outputs, voltage regulation, voltage and amperage over protections are all on a level with the class 2a Seasonic made units, so ranking the RM650 as 2a is easy, basically it's an excellent unit. It's problems stem from case design and poor choice in capacitors and thermocouple. It is designed with a passive use in mind for low output during idle, simply, the fan doesn't spin and the corrugated case acts as a heatsink. Most psus have reliable rated output upto @40°C, some as good as 50°C. But thats overall inside case heat, not heat as registered at the capacitors. Most caps in high tier psus are the 105°C Japanese solid caps, extremely well made and durable. the RM series uses cheaper 95°C caps on its secondaries, still good caps overall, but not to we'll thought out considering there is no airflow for low load usage. All of this relies on a thermal switch to turn on the fan and cool the unit once loads reach a certain output and the temps in case rise. This is supposed to be @30°C, I believe, but with slight dust accumulation and a poor switch implementation, this could get to as much as 40°C in case temp, with the secondaries providing most of the heat, basically coming close to their rated temp max long before the fan kicks on.

Turn that switch off and run the psu in normal, non-silent, fan always runs mode, and the RM650 is a tier2a psu just based on its outputs alone, which should easily run your cpu, OC, gpu with some headroom to spare. Leave that switch engaged, running in silent mode, with a 200w+ cpu and possible above average case temps etc etc etc, and you end up with a tier 2a psu with a possible very short lifespan simply due to bad thermal regulation at the psu level.

So, yes you shouldn't have any worries about power needs, you won't be running the psu close to max rated, but please be careful with the temps (orient the psu to draw fresh air, not case air etc)
 


thanks but how am i turning off the zero rpm mode? I put perforamnce setting in the bios?
 
I believe there is a switch within the Corsair link software that will help with that. The RM series by default run 0 rpm below 40% load, low noise/rpm upto 70% then normal operation above 70%.

Now whether Corsair link will change any of that is anyone's guess, some have reported good success with that program, some hate it, and some find it utterly useless. Personally if you could reset the %load curves that would be a good thing since @idle you'll barely be within the 40%, most user you'll be in the middle of low noise, and max gaming you'll be right at normal/low noise differential.

With other brand units that are using this hybrid tech, there is often a manual switch on the psu itself to turn the hybrid usage on/off, but for the RM series this is not the case, sorry. gl and let us know how it turns out with the Corsair link, there will be others who may benefit also from first hand experience with that software.