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Great PSU for Skylake based system - CM V650S 650W ?

post #1 of 10
Thread Starter 
Hi there.


I've put together a PC for my less tech savvy friend. The only thing I have doubts about is the PSU and whether or not it will be ok for OC-ing this Skylake and ok in general.

Take note that this system will never use any kind of SLI-Crossfire GPU setup and the only thing that might change in future is the GPU, which might be upgraded next year when polaris and pascal come out.

1. We are from Bosnia and Herzegovina. PSU choice and pricing isn't that great here, so CM V650S 650W caught my eye because it was in "Tier One" on Tom's Hardware PSU tier list and the price was most affordable among those in that tier.
2. When converting this PSU original price to US $, it costs 142$, however, considering how expensive stuff is here, thats the cheapest one in that "tier". On newegg its 100$. It's this one.
3. Planed configuration is as followed:
Intel-core-i5-6600k
Cooler-master-hyper-212-evo cooler
Msi-z170-krait-gaming mobo
Corsair-vengeance-16gb-2x8gb-3200mhz-ddr4 ram
AMD R9 380 4GB Sapphire NITRO
1 TB Caviar Blue HDD
128 GB Samsung Pro SSD

4. The alternatives to mentioned PSU are following:
EVGA SuperNOVA 650 GS 650W (136$),
XFX Pro 650W Modular Edition 80 PLUS Bronze (128$) and
BE QUIET! Dark Power PRO 10 650W (188$)


What do you think about the PSU and the mentioned alternatives ?

What is the best choice of those 4 PSU's, or are they all similar and I should just choose the cheapest one? Note that those values are much higher here, so I doubt I will chose the "BE QUIET", unless it's far superior to alternatives.
The reason I've only listed 650w models is because my friend may want to get an overkill GPU in the future, so just to be sure, I've left some room for that.


Any help will be greatly appreciated smile.gif

Edit: Listed possible alternatives.
Edited by VordaVor - 2/5/16 at 4:48pm
post #2 of 10

It's more than good enough. It's overkill.

 

Without knowing what PSUs are available to you, I can't really recommend anything else. However, you could easily power this with a good quality-made 550W PSU.

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post #3 of 10

There is no need for a 650W PSU here, not even if he had a GTX 980 Ti or an R9 390X.

 

Anyway, go with the one that has the lowest price.

It's a computer!
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250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
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It's a computer!
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CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveHard DriveOptical Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
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post #4 of 10
Thread Starter 
Thank you for your response smile.gif

I've dug a little deeper into it, and found what will likely be his PSU.

This one looks perfect: EVGA Supernova G2 550W

Modular, perfect score in many review sites and its 550W, so no overkill there and also cheapest one of the bunch! (108$). Just wow!
post #5 of 10
its better to have an overkill PSU for the long term use though.
the efficiency might get shot a bit by under-running the PSU, but you get more longevity due to less burden for the PSU.
or to make it easier to understand.

pros of underload:
less burden for the PSU
more stable power regulation
longer operating lifespan
more headroom for more parts

cons of underload:
less power efficiency overall
less cost effectiveness (650W are generally more expensive than 550W PSU)
Edited by epic1337 - 2/6/16 at 6:25am
post #6 of 10
Quote:
Originally Posted by epic1337 View Post

its better to have an overkill PSU for the long term use though.
the efficiency might get shot a bit by under-running the PSU, but you get more longevity due to less burden for the PSU.
or to make it easier to understand.

pros of underload:
less burden for the PSU
more stable power regulation
longer operating lifespan
more headroom for more parts

cons of underload:
less power efficiency overall
less cost effectiveness (650W are generally more expensive than 550W PSU)

A pro of underload is a longer oparting lifespan? That's not really correct in my opinion.
Build quality is by far the biggest factor in the lifespan of a PSU.
A 550w platinum PSU running 24/7 at 500w will (generally) ast longer than a 750w bronze PSU running at 500w 24/7 (give that all circumstances are the same - ceterus paribus).
The same goes for the stability of power regulation; it's all about the build quality, mostly in terms of ripple and primary + secondary caps.

I also frequently read that a higher wattage PSU will be more quiet because 'the max. PC power consumption is about 50-60% of the total wattage the PSU can provide'.
You're better off spending the same amount of money on a 550w PSU that has a fluid dynamic bearing fan for instance - these are insanely silent and will not be audible with closed case.

I would never buy a PSU with that is 100-300w overkill for a system - it's just a total waste of money, unless you really want to keep SLI/CF open for the future.
Stin00
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Stin00
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post #7 of 10
build-quality is the base of the pressumed lifespan, of course poor quality parts would have short lifespan, where as good quality parts would have long lifespan.
then once you considered their operating range, having the parts operating with the least strain would lengthen their lifespan even further.

the first thing that goes bad on a PSU is usually the caps, even under perfect conditions they'd still go bad.
signs of caps going bad is ripple voltage going up under load, thats because these caps have deteriorated to have higher ESR and lower capacity.
that means to say, your PSU would end up getting slightly less efficient, and going from a superb piece of art to a "just decent" equipment.
well at least transistors and diodes aren't as bad, that is so long as you keep the temperature and current at a tolerable range.
and further more, to mitigate that deteriorating component's effects, you can run it with a lower load so that it won't be as noticeable.

on a side note, but of course you could just swap for a newer part, but thats just doubling the cost.
speaking of old PSUs, i wonder if theres a review for a used PSU, that would be an interesting test for a before-after (new vs aged) comparison.


regulation is also dependent on power load, you can see it from this review.
http://www.kitguru.net/components/power-supplies/zardon/seasonic-snow-silent-750w-psu-review/6/



then consider the heat and noise thats also dependent on the power load.




another thing, are you aware that theres also a difference between average load to peak load?
parts like AMD's GPUs have a drastic power consumption difference between average load and peak load.
normally a "continuous" peak load only occurs during stress tests, which is unlikely for normal usage cases (e.g. gaming load), but look at this monster.
http://www.tomshardware.com/reviews/radeon-r9-290-and-290x,3728-4.html

on a first glance, 250ish watts on average sounds quite low, you could expect like 300W~400W at most from a full rig during a gaming session.
but, look at those peaks, those monstrous spikes that almost reached 400watts, if thats combined with an OCed CPU's power spikes, you could accidentally trip a 550W PSU's OCP.
Edited by epic1337 - 2/6/16 at 7:59am
post #8 of 10

You guys are completely ignoring a few facts here:

 

  • This is for his "less tech-savvy friend"
  • The video card being looked at is just the R9 380.
  • He will never overclock the video card. Ever.
  • He will never have more than one video card. Ever.
  • The 550W G2 is an EXTREMELY high-end PSU (just about the best there is, second only to the RM550x, and only slightly)
  • He'd still be more than fine even if he upgraded to an R9 390X or a GTX 980 Ti.

 

So, you're wasting his time. The 550W G2 is still overkill for his friend both in terms of quality and in power capacity.


Edited by TwoCables - 2/7/16 at 2:53am
It's a computer!
(19 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveHard DriveOptical Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
Optical DriveCoolingOSMonitor
Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) 
KeyboardPowerCaseMouse
Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate 
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Basic, but premium round X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
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It's a computer!
(19 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveHard DriveOptical Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
Optical DriveCoolingOSMonitor
Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) 
KeyboardPowerCaseMouse
Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate 
Mouse PadAudioAudio
Basic, but premium round X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
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post #9 of 10
Quote:
Originally Posted by TwoCables View Post

You guys are completely ignoring a few facts here:
  • This is for his "less tech-savvy friend"
  • The video card being looked at is just the R9 380.
  • He will never overclock the video card. Ever.
  • He will never have more than one video card. Ever.
  • The 550W G2 is an EXTREMELY high-end PSU (just about the best there is, second only to the RM550x, and only slightly)
  • He'd still be more than fine even if he upgraded to an R9 390X or a GTX 980 Ti.

So, you're wasting his time. The 550W G2 is still overkill for his friend both in terms of quality and in power capacity.

Everything here is correct. (I have a 650W G2 in my 2nd rig)

BUT:

PSUs (if correctly spec'd) can last a long time. Years. Verging on a decade.

From my perspective it is worth paying a little more for a PSU because spread over it's useful life, a small increase is peanuts per year.

Also - running ANY device close to it's limits will have an effect on it's long term durability. Higher capacity parts will run at lower temperatures and last longer than lower capacity parts given the same load (other things being equal)

For me - "Just enough" isn't enough when it comes to power. "More than enough" isn't enough.

Yes, the 550W G2 could be considered overkill. I would still want the 650W version.
post #10 of 10
Quote:
Originally Posted by Wihglah View Post


Everything here is correct. (I have a 650W G2 in my 2nd rig)

BUT:

PSUs (if correctly spec'd) can last a long time. Years. Verging on a decade.

From my perspective it is worth paying a little more for a PSU because spread over it's useful life, a small increase is peanuts per year.

Also - running ANY device close to it's limits will have an effect on it's long term durability. Higher capacity parts will run at lower temperatures and last longer than lower capacity parts given the same load (other things being equal)

For me - "Just enough" isn't enough when it comes to power. "More than enough" isn't enough.

Yes, the 550W G2 could be considered overkill. I would still want the 650W version.

 

No, EVERYTHING is correct. There is no "but" statement to be made about what I said. I really do know what I am talking about here.

 

This is NOT "just enough". We are also talking about an EXTREMELY high-end PSU here and only 350-375W of power being pulled while gaming. It's also the lowest price out of all of his options, and that's a big concern here.

 

Do you have any idea of how good this PSU is? If you did, then you wouldn't be worried about it! It's the best of the best. It's designed to EASILY deliver 550W 24/7 if it's ever needed. Yes, this PSU can deliver 550W 24/7 very easily. So, pulling 350-375W out of it while gaming will be nothing. Absolutely nothing. Even if he were to pull 450-500W out of it while gaming, then he'd still be fine. It's not 550W MAXIMUM, it's 550W CONTINUOUS. It's also a ridiculously high-end PSU.

 

So no, we are NOT talking about running this PSU close to its limits! If we were, then I wouldn't be supporting his purchase of it. "Close to its limits" would be pulling 500-550W out of it 24/7, which he's nowhere near doing.

 

Besides, he already purchased it. It's a done deal. I know because I further discussed this with him in private.

 

 

Edit: The more you know about PSUs, the less you worry about things like this when there's absolutely no need to worry.


Edited by TwoCables - 2/9/16 at 2:49am
It's a computer!
(19 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveHard DriveOptical Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
Optical DriveCoolingOSMonitor
Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) 
KeyboardPowerCaseMouse
Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate 
Mouse PadAudioAudio
Basic, but premium round X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
  hide details  
Reply
It's a computer!
(19 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveHard DriveOptical Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
Optical DriveCoolingOSMonitor
Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) 
KeyboardPowerCaseMouse
Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate 
Mouse PadAudioAudio
Basic, but premium round X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
  hide details  
Reply
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