Overclock.net › Forums › Components › Power Supplies › [Question] Is power draw from "over-kill" PSU higher compared to lower wattage PSU in same rig?
New Posts  All Forums:Forum Nav:

[Question] Is power draw from "over-kill" PSU higher compared to lower wattage PSU in same rig? - Page 2

post #11 of 14
Thread Starter 

Looked at the 1600W reviews too, its running at 92% eff
post #12 of 14
Thread Starter 
Quote:
Originally Posted by TELVM View Post

Let's say that your comp draws 100W idling and 400W @ full steam.
efficiency.jpg

r_600x450.JPG

At 100W draw the 1600 efficiency is ~83%, the 550 is ~89%.

At 400W draw the 1600 is ~92%, the 550 is ~91%.


Leaving aside that small drop in efficiency at low loads (idling), and the higher initial purchasing cost, overkill PSUs are advantageous all over (lower ripple and fan noise, longer hold-up time, better reliability and longevity, etc.)

Yeah, if the differences only come out to be a few bucks a month/year then I am not too worried. I really like the EVGA superNOVA G2 1600w, and selling it would only really get me half back of what i paid for it. I think im going to test the waters and see what I can get for it, If nothing decent then I will just keep and use it.
post #13 of 14
Quote:
Originally Posted by drazah View Post


Looked at the 1600W reviews too, its running at 92% eff

Oh, sorry. I was under the impression you had a 1200W unit. smile.gif Yes, 1600W is more efficient.
MEGATRON
(24 items)
 
GIGATRON
(10 items)
 
 
CPUMotherboardGraphicsGraphics
Intel Core i5-3570K @ 4.8/1.32V | Hammer&Vice'd ASUS Sabertooth Z77 PowerColor R9 290 PowerColor R9 290 
RAMHard DriveHard DriveCooling
Samsung MV-3V4G3D/US 4x4GB kit @ 2200MHz 9-10-1... 2x Western Digital Caviar Black 1TB RAID 0 Samsung 840 Evo 250GB 2xAquacomputer Kryographics Hawaii Nickel/Acrylic 
CoolingCoolingCoolingCooling
XSPC Rasa Swiftech MCP-655 Vario Aquacomputer Aqualis 450mm w/ nano & Pump top 2x XSPC RX360; 1x XSPC RS360; 1x Alphacool ST 1... 
CoolingOSMonitorMonitor
EK-Vardar F4-120 8.1 x64; Ubuntu 14.10 Dell U2412M Dell U2412M 
MonitorMonitorKeyboardPower
Dell U2312H BenQ XL2411Z KBC Poker II MX Clears SeaSonic SS-850AM 
CaseMouseMouse PadAudio
Thermaltake Core X9 Mionix AVIOR 7000 Razer Goliathus Aune T1 -> Yamaha A-720 -> Sennheiser HD650 | S... 
CPUCPUMotherboardGraphics
Intel Xeon E5-2650 v4 @ 2.00GHz Intel Xeon E5-2650 v4 @ 2.00GHz SuperMicro X10DAL-i nay 
RAMHard DriveCoolingOS
2x8GB (for now) Kingston DDR4 @ 2133MHz/C16 Samsung 840 120GB EK-Vardar F4 on an Arctic Freezer i11 Ubuntu Server 16.04 
PowerCase
SeaSonic SS850-AM overrated 
  hide details  
Reply
MEGATRON
(24 items)
 
GIGATRON
(10 items)
 
 
CPUMotherboardGraphicsGraphics
Intel Core i5-3570K @ 4.8/1.32V | Hammer&Vice'd ASUS Sabertooth Z77 PowerColor R9 290 PowerColor R9 290 
RAMHard DriveHard DriveCooling
Samsung MV-3V4G3D/US 4x4GB kit @ 2200MHz 9-10-1... 2x Western Digital Caviar Black 1TB RAID 0 Samsung 840 Evo 250GB 2xAquacomputer Kryographics Hawaii Nickel/Acrylic 
CoolingCoolingCoolingCooling
XSPC Rasa Swiftech MCP-655 Vario Aquacomputer Aqualis 450mm w/ nano & Pump top 2x XSPC RX360; 1x XSPC RS360; 1x Alphacool ST 1... 
CoolingOSMonitorMonitor
EK-Vardar F4-120 8.1 x64; Ubuntu 14.10 Dell U2412M Dell U2412M 
MonitorMonitorKeyboardPower
Dell U2312H BenQ XL2411Z KBC Poker II MX Clears SeaSonic SS-850AM 
CaseMouseMouse PadAudio
Thermaltake Core X9 Mionix AVIOR 7000 Razer Goliathus Aune T1 -> Yamaha A-720 -> Sennheiser HD650 | S... 
CPUCPUMotherboardGraphics
Intel Xeon E5-2650 v4 @ 2.00GHz Intel Xeon E5-2650 v4 @ 2.00GHz SuperMicro X10DAL-i nay 
RAMHard DriveCoolingOS
2x8GB (for now) Kingston DDR4 @ 2133MHz/C16 Samsung 840 120GB EK-Vardar F4 on an Arctic Freezer i11 Ubuntu Server 16.04 
PowerCase
SeaSonic SS850-AM overrated 
  hide details  
Reply
post #14 of 14
very good thread. I was wondering about that myself.
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Power Supplies
Overclock.net › Forums › Components › Power Supplies › [Question] Is power draw from "over-kill" PSU higher compared to lower wattage PSU in same rig?