• Welcome to TechPowerUp Forums, Guest! Please check out our forum guidelines for info related to our community.

PSU power useage question

Joined
Sep 16, 2013
Messages
1,357 (0.35/day)
Location
Canada
System Name HTPC
Processor Intel Core 2 Duo E8400 - 3.00/6M/1333
Motherboard AsRock G31M-GS R2.0
Cooling CoolerMaster Vortex 752 - Black
Memory 4 Go (2x2) Kingston ValueRam DDR2-800
Video Card(s) Asus EN8600GT/HTDP/512M
Storage WD 3200AAKS
Display(s) 32" Irico E320GV-FHD
Case Aerocool Qx-2000
Audio Device(s) Onboard
Power Supply Enermax NoiseTaker 2 - 465w
Mouse Logitech Wave MK550 combo (M510)
Keyboard Logitech Wave MK550 combo (K350)
Software Win_7_Pro-French
Benchmark Scores Windows index : 6.5 / 6.5 / 5.6 / 6.3 / 5.9
Let's say a pwoer supply is rated at 115v and 8amps does it mean that it's always consumming that or that it can be the maximum? Because a 920w AC consumption for an older 250w DC psu seems shitty to me.
 
Joined
Apr 19, 2012
Messages
12,062 (2.75/day)
Location
Gypsyland, UK
System Name HP Omen 17
Processor i7 7700HQ
Memory 16GB 2400Mhz DDR4
Video Card(s) GTX 1060
Storage Samsung SM961 256GB + HGST 1TB
Display(s) 1080p IPS G-SYNC 75Hz
Audio Device(s) Bang & Olufsen
Power Supply 230W
Mouse Roccat Kone XTD+
Software Win 10 Pro
Let's say a pwoer supply is rated at 115v and 8amps does it mean that it's always consumming that or that it can be the maximum? Because a 920w AC consumption for an older 250w DC psu seems shitty to me.

A PSU will only pull the power the components need from the wall. If the components are at idle, the PSU will only pull 25-75watts from the wall plus a a few extra watts due to efficiency.
 
Joined
Sep 16, 2013
Messages
1,357 (0.35/day)
Location
Canada
System Name HTPC
Processor Intel Core 2 Duo E8400 - 3.00/6M/1333
Motherboard AsRock G31M-GS R2.0
Cooling CoolerMaster Vortex 752 - Black
Memory 4 Go (2x2) Kingston ValueRam DDR2-800
Video Card(s) Asus EN8600GT/HTDP/512M
Storage WD 3200AAKS
Display(s) 32" Irico E320GV-FHD
Case Aerocool Qx-2000
Audio Device(s) Onboard
Power Supply Enermax NoiseTaker 2 - 465w
Mouse Logitech Wave MK550 combo (M510)
Keyboard Logitech Wave MK550 combo (K350)
Software Win_7_Pro-French
Benchmark Scores Windows index : 6.5 / 6.5 / 5.6 / 6.3 / 5.9
Thank you. Iy's for a project im asking it. Wanna use an older but solid 250w psu to drive a car radio, car amps and 2 X 25w speakers.
 
Top