Would a 550W PSU be good for this setup?

XVII_I

Junior Member
Nov 5, 2015
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Hello all,

I have a 550W PSU currently in my rig but I want to upgrade my components to:

FX 8320E (I do not plan to overclock)
R9 390 (I do not plan to overclock this ether)
8GB DDR3 1600MHz RAM
5 USB devices
I have a ASUS M5A97 R2.0 board which for some reason does not want to boot with my 750W PSU. (Yes I checked to make sure all the cables are in, and yes the PSU works in my other system, and I switched back to my Antec 550 and it boots so the Mobo is fine)

Any Thoughts?

EDIT:
Current Rig:

FX 4130 Stock
R7 260X Overclocked by 15%
Same RAM
Same Board
 
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lehtv

Elite Member
Dec 8, 2010
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550W is the bare minimum you'd want for a system like that. 650W is preferable, those CPU and graphics card are both quite power hungry.

I highly recommend against the AMD FX-8320E CPU. It would be a bottleneck in many games even if you overclocked it. At most, I would pair a stock FX-8320E with an R9 380 or GTX 960 - for R9 390 or GTX 970, Intel i5 is the minimum 'safe' CPU. If you want the R9 390, you should switch to LGA1150 or LGA1151. Intel will also consume much less power and make the R9 390 safer on a 550W unit, though I'd still lean towards GTX 970.

http://pclab.pl/art62700-10.html
http://pclab.pl/art61577-8.html
http://pclab.pl/art57777-23.html
http://pclab.pl/art63116-48.html
 
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XVII_I

Junior Member
Nov 5, 2015
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550W is the bare minimum you'd want for a system like that. 650W is preferable, those CPU and graphics card are both quite power hungry.

I highly recommend against the AMD FX-8320E CPU. It would be a bottleneck in many games even if you overclocked it. At most, I would pair a stock FX-8320E with an R9 380 or GTX 960 - for R9 390 or GTX 970, Intel i5 is the minimum 'safe' CPU. If you want the R9 390, you should switch to LGA1150 or LGA1151. Intel will also consume much less power and make the R9 390 safer on a 550W unit, though I'd still lean towards GTX 970.

http://pclab.pl/art62700-10.html
http://pclab.pl/art61577-8.html
http://pclab.pl/art57777-23.html
http://pclab.pl/art63116-48.html

I am not quite a fan of Intel, plus the bottleneck will not bother me too much, as long as it performs better at the end of the day I am fine. Plus the 970 is worse than the 390.
 

lehtv

Elite Member
Dec 8, 2010
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I am not quite a fan of Intel

Intel is demonstrably the better choice for R9 390, by far. But - it's not really my concern that you let your fandom get in the way of rational decision making - do what you like ;)

the bottleneck will not bother me too much, as long as it performs better at the end of the day I am fine.

With FX-8320E, it should be equally true that the lower performance of GTX 960 4GB or R9 380 4GB would not bother you too much, because it'd perform similarly to R9 390 on a slow processor. These cards will be vastly faster than your 260X anyway. So save money there? And not worry about using a 550W unit (since those cards use less power than R9 390).

Plus the 970 is worse than the 390.

No it's not, it's just different. GTX 970 has way better performance per watt and lower running costs and PSU requirements thanks to its lower power consumption. R9 390 has slight edge in performance and more VRAM and a faster memory bus which allows it to perform better on higher resolutions, but tends to runs hotter and noisier due to its higher power consumption. Regardless, you will not see any difference in performance between these two when using a slow AMD CPU, but you'll definitely use more power with R9 390.
 

XVII_I

Junior Member
Nov 5, 2015
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I am fine with a 380 but I just wanted to see if my 550w PSU can handle a system such as the original post specifies.
 

XVII_I

Junior Member
Nov 5, 2015
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Intel is demonstrably the better choice for R9 390, by far. But - it's not really my concern that you let your fandom get in the way of rational decision making - do what you like ;)



With FX-8320E, it should be equally true that the lower performance of GTX 960 4GB or R9 380 4GB would not bother you too much, because it'd perform similarly to R9 390 on a slow processor. These cards will be vastly faster than your 260X anyway. So save money there? And not worry about using a 550W unit (since those cards use less power than R9 390).



No it's not, it's just different. GTX 970 has way better performance per watt and lower running costs and PSU requirements thanks to its lower power consumption. R9 390 has slight edge in performance and more VRAM and a faster memory bus which allows it to perform better on higher resolutions, but tends to runs hotter and noisier due to its higher power consumption. Regardless, you will not see any difference in performance between these two when using a slow AMD CPU, but you'll definitely use more power with R9 390.

You also have a lean a bit too, I wouldn't say I am unbiased either, I do not like Intel as a company, not the fact that I like AMD. I didn't want an argument to be frank, I just wanted an answer and that was about that. I do agree that I should go for the R9 380 instead, I also don't think I should dump too much more into a CPU considering most games are not CPU bound anyway. (Unless they are bad ports)
 

cruzinforit

Member
Mar 16, 2013
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http://www.anandtech.com/bench/product/1368?vs=1402


The intel CPU is $194 and the AMD is $145.


It gets even more embarassing for AMD when you look here.
http://www.anandtech.com/bench/product/1197?vs=1402

The i3-4360 is the same price as the AMD, while being a dual core, and still manages to beat, or match in in almost all benchmarks, while drawing significantly less power.


I like AMD too, and want them to survive, but if you look at it from a price/performance/power perspective, Intel is the clear winner.
 

lehtv

Elite Member
Dec 8, 2010
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You also have a lean a bit too
no I really don't, my opinions are brand agnostic and I'm willing to change my views if they're unsupported by facts.

wouldn't say I am unbiased either, I do not like Intel as a company, not the fact that I like AMD.

Sure let's call it negative bias then :). I don't like Intel either, because companies in general aren't among things I like. 'Liking' doesn't apply, IMO. What does apply: do they put out products that I want to buy, based on the product's own merits?

I didn't want an argument to be frank, I just wanted an answer and that was about that.

Sorry, I didn't realize we were having an argument, but just normal discussion on a topic I thought was relevant to the thread - and to your interests.

I did answer your question in my first reply, so as far as i can see you got what you wanted :)

agree that I should go for the R9 380 instead, I also don't think I should dump too much more into a CPU considering most games are not CPU bound anyway. (Unless they are bad ports)

Yeah I think that's good way to go. It sidesteps the issue of buying a new motherboard and worrying about the PSU, and allows you to enjoy games on another level compared to the hardware you have now :)

Edit:that is, as long as the price is right for r9 380 4gb. If you can still find an r9 290 for just a little more, or r9 280x for less, those are also decent buys.
 
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Z15CAM

Platinum Member
Nov 20, 2010
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In my opinion any less then a 650 to 750 watt PSU would not be stable for your Platform - Particularly running a R390 with a 4K 1440P monitor.

Highly suggest you spend a little more for a 850W XFX BEFX PSU and work from there - They're priced fairly comparable to a Seasonic or Corsair PSU.
 
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Killrose

Diamond Member
Oct 26, 1999
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I have nearly the same set-up using an Antec 550 supply a R9 290 underclocked to 850Mhz core and my 8320 vishera overclocked to 4300Mhz. I dont have any problems other than I do notice the PWM fan in my Antec 550 psu runs at high speed which cant be heard because the fan on my reference 290 is in weed blower mode after hours of gamming.

The 550watt PSU is getting worked thats for sure, but I dont have any problems or crashes.
 

Z15CAM

Platinum Member
Nov 20, 2010
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Why under clock a Hawia 290(X) when you can orbit it with higher grade PSU - Particularly with a water cooled 290 or 290X's OEM's in CF.

In other words a 290X CF Water Platform will &$*@ a single NV 980ti for less price and your platform has as lot more to offer.

I'm talking Desk Top not Lap Top.

Look at the XFX 850W BEFX.

I realize I'm getting over board from the Op's OC'd X260 - But: What the H^#% if he intends to run a 4K 1440p IPS PLS Monitor.
 
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lehtv

Elite Member
Dec 8, 2010
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Why under clock a Hawia 290(X) when you can orbit it with higher grade PSU

Probably for two reasons - to quiet down the 290x reference cooler a little, and to avoid having to upgrade the PSU.
 

XVII_I

Junior Member
Nov 5, 2015
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I might wait for the 380X and go with that, it comes out this month, at least what the rumors suggest.
 

frogspawn

Junior Member
Nov 6, 2015
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damn that r390 is one heavy beast in terms of wattage. I would seriously upgrade your PSU if I were you. Think of it this way.... you should never run your PSU over 80% capacity for longevity purposes:)
 

cruzinforit

Member
Mar 16, 2013
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It amazes me how uninformed so many people are when it comes to power supplies. The "bigger is better" mentality is sure alive and well. Let's look at this.
The R9 390 is a 300W TDP card
The FX8320E is a 95W TDP CPU

So 400W so far.
Let's allot at worst another 75W for Motherboard, RAM, HDD, USB devices.

So at absolute worst case, 500W. In other words, a high quality 550W PSU would be sufficient for this system. 600-650W would be better, if nothing else to help keep the fan noise down. But nothing above that. Why on earth would you recommend an 850W PSU for this system? That is 350W more than this system will ever draw. It's a waste of money.