PSU Back Switch

boogieboy

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Hi all. Is it safe to turn off the power outlet without turning off the switch on the back of the PSU after shutting down Windows?
 

My Computer

Computer type
PC/Desktop
Computer Manufacturer/Model Number
Self Built
OS
Windows 10 Pro
CPU
Core i5 9600K
Motherboard
ASUS ROG Strix Z390-F Gaming
Memory
Corsair Vengeance Pro 2x 8GB (16GB) 3200MHz DDR4
Graphics Card(s)
MSI GTX 1070 Gaming X 8GB
Sound Card
ASRock A-Style Purity Sound
Monitor(s) Displays
ASUS VX239H IPS
Screen Resolution
1920x1080
Hard Drives
XPG SPECTRIX S40G 2566GB M.2 NVMe | Patriot P210 512GB SSD | Seagate BarraCuda 4TB 5400RPM
PSU
Thermaltake Smart 600w RGB 80Plus
Case
NZXT H500 with 3x Corsair HD120 RGB w/Node Pro
Cooling
Cryorig H7
Keyboard
Corsair K70 RapidFire RGB (Cherry MX Speed)
Mouse
Logitech G402 Hyperion Fury
Internet Speed
20MB Cable Broadband
Browser
Chrome
Other Info
Corsair MM300 Extended Anti-Fray Mouse Pad | Edifier C2 2.1ch Sound System | XBOX One S Controller | XBOX 360 Wireless Controller for Windows | APC SUA1000i Smart-UPS | PS4 Slim 500GB [Region 1 - USA]
If you mean like a power strip, then yes.
 

My Computer

Computer type
PC/Desktop
Computer Manufacturer/Model Number
Dell Inspiron 660
OS
Windows 7 Home Premium 64bit
CPU
Intel Core i3-3240
Motherboard
Dell 084J0R
Memory
8GB DDR3 SDRAM
Graphics Card(s)
EVGA GeForce GT 620
Sound Card
Intel Panther Point PCH High Definition Audio
Monitor(s) Displays
Acer G205HV
Screen Resolution
1600 x 900
Hard Drives
Sandisk SSD 64GB SDSSDP064G
Seagate HDD 1TB ST1000DM003-1CH162
PSU
Dell 300W
Case
Dell Inspiron
Keyboard
Logitech Wireless K320/B350
Mouse
Microsoft
Internet Speed
25Mbps/4Mbps
Antivirus
Avast
Browser
Mozilla Firefox
Providing your computer is switched off you can use either the PSU on/off switch or the power outlet switch - it doesn't matter - either way your computer will be isolated from mains power.
 

My Computer

Computer Manufacturer/Model Number
HP Pavilion Elite 495UK
OS
Windows 7 Ultimate SP1 64-Bit
CPU
Intel Core i7 870 @ 2.93GHz
Motherboard
MSI 2A9C (CPU1)
Memory
8Gb Dual-Channel DDR3 @ 664MHz
Graphics Card(s)
nVidia GeForce GTX 460 1024MB dedicated RAM
Sound Card
Realtek HD Audio
Monitor(s) Displays
HP2310i
Screen Resolution
1920 x 1080
Hard Drives
1x1954GB Hitachi HDS22020ALA 330 (RAID), 1x1954GB Hitachi External for backup and storage
PSU
460W
Case
HP Elite
Cooling
Air cooled
Keyboard
Logitech K750 solar-powered keyboard
Mouse
Logitech Wireless M180 mouse
Internet Speed
2Mb
Other Info
Pure Avanti Flow Internet Radio with iPod Dock, 64Gb iPod, HP USB Speakers, Sony MDR-V500 Headphones, Sony Vaio F-Series Laptop
If you are intending to open the case of the computer then it is always preferable to switch off the system at the wall socket and remove the plug.

Switching off the switch on the power supply unit will still allow mains voltage into the case, where it connects to the switch itself

   Note
When the system is connected to the mains supply by a three pin "earthed" supply, leaving the wall socket connected but with the supply off will provide some protection against "static" damage to internal components when working inside the case. In these cases the power supply should be "locked Off" where possible
 

My Computers

System One System Two

  • Computer type
    PC/Desktop
    Computer Manufacturer/Model Number
    ChillBlast - Custom to my design
    OS
    Windows 11 Pro x64 [Latest Release and Release Preview]
    CPU
    Ryzen 9 5950X, 3.8 - 5.2 MHz
    Motherboard
    Asus Prime X570-Pro
    Memory
    64GB [2 x 32GB] DDR4 3200MHz
    Graphics Card(s)
    4GB NVIDIA GEFORCE GTX 1650 Ti
    Sound Card
    On-board SPDIF to 5.1 System + HDMI [5.1 system]
    Monitor(s) Displays
    32" UHD 32 Bit HDR Monitor + 43" UHD 4K 32Bit HDR TV
    Screen Resolution
    2 x 3840 x 2160 @60Hz
    Hard Drives
    1TB M2 SSD OS, 500GB Fast Access SSD, 2 x 8TB Data + Various Externals from 1TB to 4TB, 10TB NAS
    PSU
    NZXT C750 80 PLUS Gold 750W Modular PSU
    Case
    Workstation Case [Matt Black]
    Cooling
    NZXT Kraken X63 280mm CPU Cooler +2x Quiet Case fans
    Keyboard
    Logitech Wireless MX Keys & K400 + others
    Mouse
    Logitech Wireless MX Master 3S
    Internet Speed
    920 MB Down 50 MB Up
    Antivirus
    BitDefender Total Security Pro
    Browser
    Chrome (always run latest Non-Beta)
    Other Info
    Also run ...
    Laptop - Quad 8GB - Windows 10 Pro x64
    Nexus 7 Android tablet x2
    Samsung 10.2" tablet
    Blackview TAB 8 4G Android Tablet c/w Keyboard
    Wacom Intuos Pro Medium Pen Pad
    Wacom Intuos Pro Small Pen Pad
    Wacom Expresskeys Remote
    Loopdeck+ Graphics Controller
    Shuttle Pro v2 Control
  • Computer type
    Laptop
    System Manufacturer/Model Number
    Dell XPS 17 10750H
    OS
    Windows 11 Pro x64 Latest RP
    CPU
    Intel I7 10750H 5.0GHz
    Motherboard
    Dell XPS
    Memory
    32GB [2x16GB] DDR4 2933 MHz
    Graphics Card(s)
    nVidia GTX1650Ti 4 GB GDDR6
    Sound Card
    Stock [Realtek] 4 Speaker
    Monitor(s) Displays
    17" IPS UHD+ Infinity Edge Touchscreen
    Screen Resolution
    3840 x 2400
    Hard Drives
    2TB M2 NVMe, 4TB External + various 500GB & 1TB External NVMe (also have access to spinner HDD from
    PSU
    Stock
    Case
    Stock XPS Aluminium & Carbon Fibre
    Cooling
    Stock - Active Fan Control
    Keyboard
    Backlit + Various Logitech
    Mouse
    Stock Track Pad + Logitech MX Trackball
    Internet Speed
    72 MB Down 18MB Up
    Browser
    Chrome
    Other Info
    Also run ...
    Laptop - Quad 8GB - Windows 10 Pro x64
    Nexus 7 Android tablet x2
    10.2" tablet
    Sony Z3 Android Smartphone
    Wacom Intuos Pro Medium Pen Pad
    Wacom Intuos Pro Small Pen Pad
    Wacom Expresskeys Remote
    Loopdeck+ Graphics Controller
    Shuttle Pro v2 Control Pad
    10TB NAS
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