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left my computer 'on' overnight to find it 'off' .....


#1
I left my computer 'on' overnight to find it 'off' by the next morning.
When I booted the 1st screen was the block screen (?). This never happens usually.
As no program has been configured to close the windows after completing a task I can´t see other culprit than the op. sistem itself. But why ? I´ve left my machine 'on' several times before , so it was the next morning.
Why sometimes it happens and sometimes not ?
Thanks.
 

My Computer

System One

  • OS
    WINDOWS PRO BUILD 9200
    Computer type
    PC/Desktop
    CPU
    AMD FX 8150 EIGHT CORE 3,60 GHZ
    Motherboard
    ASUS M5A97 LE R 2.0 DDR3
    Memory
    8 GIGABYTES
    Graphics Card(s)
    VGA PCI 2 G FORCE ASUS GT 630 128 BIT
    Hard Drives
    HD SATA SEAGATE 7200 RPM 12GB S1DC44FM

Mystere

Power User
VIP Member
Power User
Posts
1,925
#2
You mean the lock screen?

Sound like your computer went into hibernation. Many laptops are configured to go into hibernation if left alone while on battery, but stay running if plugged in. Is this a laptop, and maybe the power cord was loose?
 

My Computer

System One

  • OS
    Windows 8.1 Pro
    CPU
    Intel i7 3770K
    Motherboard
    Gigabyte Z77X-UD4 TH
    Memory
    16GB DDR3 1600
    Graphics Card(s)
    nVidia GTX 650
    Sound Card
    Onboard Audio
    Monitor(s) Displays
    Auria 27" IPS + 2x Samsung 23"
    Screen Resolution
    2560x1440 + 2x 2048x1152
    Hard Drives
    Corsair m4 256GB, 2 WD 2TB drives
    Case
    Antec SOLO II
    Keyboard
    Microsoft Natural Ergonomic Keyboard 4000
    Mouse
    Logitech MX
#3
Is this a laptop, >>>>
Nope , it is a desktop with a solid power connection.
Power failure is discarded as the led digital clock on my table , which is powered by the same line than the computer , was showing correct time by this morning (this clock is a good power failure detector , if any occurs it starts to blink)
Most intriguing is that sometimes it happens , sometimes it doesn´t.
Very odd.
 

My Computer

System One

  • OS
    WINDOWS PRO BUILD 9200
    Computer type
    PC/Desktop
    CPU
    AMD FX 8150 EIGHT CORE 3,60 GHZ
    Motherboard
    ASUS M5A97 LE R 2.0 DDR3
    Memory
    8 GIGABYTES
    Graphics Card(s)
    VGA PCI 2 G FORCE ASUS GT 630 128 BIT
    Hard Drives
    HD SATA SEAGATE 7200 RPM 12GB S1DC44FM

labeeman

New Member
VIP Member
Member
Carencro, LA

Posts
1,397
#4
Computer power supply is more sensitive to power surges than digital clocks the clock is not a good indicator of power problems.
You will need to put the PC on a UPS.
 

My Computer

System One

  • OS
    Win7/8 Mint
    System Manufacturer/Model
    lenovo W530
    CPU
    intell i7
    Motherboard
    Lenovo
    Memory
    16gb
    Screen Resolution
    1920x1080
    Hard Drives
    512 gb ssd
    Other Info
    Around 13 million employes

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