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Is there any reason whatsoever to replace a fully working power supply from 2007 for my next build?

post #1 of 8
Thread Starter 
The power supply in question:

http://www.newegg.com/Product/Product.aspx?Item=N82E16817151027

I know that PSU's get less efficient over time and therefore you have to rate the wattage lower, but considering the amount of die shrinks that have occurred since that time, I doubt a Haswell/$300 Nvidia GPU build would ever even approach 400W at max load.
post #2 of 8
Quote:
Originally Posted by Apolladan View Post

The power supply in question:

http://www.newegg.com/Product/Product.aspx?Item=N82E16817151027

I know that PSU's get less efficient over time and therefore you have to rate the wattage lower, but considering the amount of die shrinks that have occurred since that time, I doubt a Haswell/$300 Nvidia GPU build would ever even approach 400W at max load.
They don't get less efficient over time and that's not how efficiency functions anyway.... but you're perfectly correct about the rest, they PSU is apt for pretty much any Ivy/Haswell + high end GPU setup you can think of. smile.gif
post #3 of 8
Only reason I could think is to simply get a higher efficiency power supply, generally the rule of thumb I stick to is 5 years it's time to replace in that time there should of been significant advances in the market be it efficiency or more reliable designs/features.
post #4 of 8
Thread Starter 
Quote:
Originally Posted by Original Sin View Post

They don't get less efficient over time and that's not how efficiency functions anyway.... but you're perfectly correct about the rest, they PSU is apt for pretty much any Ivy/Haswell + high end GPU setup you can think of. smile.gif

I'm not sure I used the correct phrasing there with "efficiency." Years ago I read somewhere that PSU's degrade and over time lose something like 10% of the wattage every few years. Not true?
post #5 of 8
Certain types of components wear out a lot quicker than others, seasonic uses good quality parts, but me being portective of a big investment like a rig, maybe know is a good time to sell the PSU and get a new/newer 1

Even if the wattage is still the same, its things like the capacitors and power transistors that start to wear out
Edited by Kaltenbrunner - 1/24/13 at 2:42am
rig
(15 items)
 
  
CPUMotherboardGraphicsRAM
i7-2700k @ 4.5GHz ASRock z75 Pro3 MSI 980 Ti Gaming and Gigabyte R9 290 OC windforce 8GB 2133 CL9 Gskill Snipper 
Hard DriveHard DriveHard DriveCooling
2x 128GB M4 sata3 3TB Seagate + 640GB WD black M550 512GB sata3 2x140mm SilverArrow 
OSMonitorPowerCase
Win7 64bit QNIX 27" 1440p @96Hz 850W EVGA SuperNova +80Gold HAF 932 
MouseAudioAudio
Razor Abyssus SoundBlaster Z  Logitech X-540 5.1 
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rig
(15 items)
 
  
CPUMotherboardGraphicsRAM
i7-2700k @ 4.5GHz ASRock z75 Pro3 MSI 980 Ti Gaming and Gigabyte R9 290 OC windforce 8GB 2133 CL9 Gskill Snipper 
Hard DriveHard DriveHard DriveCooling
2x 128GB M4 sata3 3TB Seagate + 640GB WD black M550 512GB sata3 2x140mm SilverArrow 
OSMonitorPowerCase
Win7 64bit QNIX 27" 1440p @96Hz 850W EVGA SuperNova +80Gold HAF 932 
MouseAudioAudio
Razor Abyssus SoundBlaster Z  Logitech X-540 5.1 
  hide details  
Reply
post #6 of 8
Quote:
Originally Posted by Apolladan View Post

I'm not sure I used the correct phrasing there with "efficiency." Years ago I read somewhere that PSU's degrade and over time lose something like 10% of the wattage every few years. Not true?
That's supposed to be capacitor degradation and they're supposed to lose capacitance, which means somewhat lower output (under similar safety and quality as before). However, do ignore that as it's irrelevant nowadays (quality caps on even entry level units, high efficiency designs, low/er operating temps.... whatever degradation occurs should be negligible).
post #7 of 8
Thread Starter 
Quote:
Originally Posted by Original Sin View Post

That's supposed to be capacitor degradation and they're supposed to lose capacitance, which means somewhat lower output (under similar safety and quality as before). However, do ignore that as it's irrelevant nowadays (quality caps on even entry level units, high efficiency designs, low/er operating temps.... whatever degradation occurs should be negligible).

So in conclusion, it's fine?
post #8 of 8
Indeed it is.
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