Black screen on startup

S

Surion

New Member
Hey all,
I have a very annoying problem with my home computer, let me type the specs first:

- Asus P5Q
- Intel Q6600
- Ati HD4850
- Windows Vista Home premium 64-bit

Ok, here's the story:

Yesterday, i wanted to shutdown my pc, so i press the red shutdown button in the start menu

First odd thing happened: The computer went in some kind of "sleep mode" The screen was black, and my screen went in stand-by mode. The computer did not shut down. Whatever i did, the computer didnt go out of the sleep mode, smashed my keyboard, clicked my mouse, nothing happened. I was in a hurry so i had to shutdown my computer using the power button in my case. I cut off the power, and went away.

The next morning, i plug the power back in and i try to start my computer again. The computer started the same way before i shut him down the day before: Fans are running, i dont hear my hard drive running, black screen, screen goes in stand-by mode after a few seconds. No boot menu, nothing immediately a black screeb
Very odd, smashed keyboard again and again, pressed every button i could, but nothing happened. Even the leds on my keyboard werent lighted when the pc startsup, mouse does flicker.

Then i had the idea to maybe try and cut power again, and try again after that. So i did as i was thinking, cut the power, reconnected to electricity net, and start up again. This is when another odd thing happens: Everytime i cut power and try restart after reconnecting to power net, the pc goes to black screen fans running, shuts himself down again, and then immediately restarts 1 time. This happens EVERYTIME i cut power. After that he just stays in black screen, nothing happens.

Does anyone know what is going on here? Yesterday he worked perfectly, but today he wont even start the bootup screen.

I hope you can help me out :)
Thanks on advance

Tim
 

My Computer

System One

Power supply failure, or about to fail? Sounds familiar as that's what my similar experience was due to.

Hard drive failure?

Or, it could simply be loose connections somewhere. Have you powered it on with the case open to have a look at what's going on inside?
 

My Computer

System One

  • Operating System
    Win 10 Pro x64 x 2
    Manufacturer/Model
    Alienware ALX x58
    CPU
    Intel® Core™ i7-975 Extreme O/C to 4.02 GHz, 8MB Cache
    Motherboard
    Asus® P6T Deluxe V2 X58 LGA1366
    Memory
    24GB Corsair Vengeance DDR3 SDRAM at 1600MHz - 6 x 4096MB
    Graphics Card(s)
    1792 MB NVIDIA® GeForce® GTX 295 Dual Core
    Sound Card
    Onboard Soundmax® High-Definition 7.1 Performance Audio
    Monitor(s) Displays
    Samsung XL2370 HD LED backlit 23" W/S 2ms response time
    Screen Resolution
    1920 x 1080
    Hard Drives
    2 x 500gb SATA II
    1 x 1TB SATA II
    1 external eSATA LaCie 3TB
    (Non-RAID)
    PSU
    Alienware® 1200 Watt Multi-GPU
    Case
    Unique
    Cooling
    4 case fans @ CPU water cooling.
    Internet Speed
    1gb/s up and down
Thanks for your help so far :)

I indeed have powered it on with open case yesterday. I'm not a computer genius, but i'll try describe what i saw the best i can:

- All fans are running: (PSU, GPU, CPU, and all the casefans)
- Motherboard led is on
- At the start i hear my hard drive starting but a fraction of a second later it stops and nothing happens.
- All USB devices get power (mouse, external drive, wacom tablet,..)
- Keyboard leds (num lock/scroll lock/caps lock) dont burn when computer boots. (normally should flicker once right?)

One annoying thing is that i don't have a speaker on my motherboard, so beeing sounds can't be heard,..

any suggestions?
 

My Computer

System One

Have you tried booting into the bios?
You can do this by pressing the del key on startup.
Look at your voltages in your bios.
It does sound like your psu may be on the way out as has been mentioned, what happens is
1. you turn on your pc.
2. The bios sees if there is a steady power state.
3 when there is one a signal is produced that causes a reset on the CPU which causes it to jump to the memory address of the bios to start the post.

Try pressing the reset button next time you get a problem this will mimic step 3.
 

My Computer

System One

  • Manufacturer/Model
    Self Built
    CPU
    I5 3570K
    Motherboard
    Gigabyte Z77-DS3H
    Memory
    4 x 4GB corsair ballistix sport DDR3 1600 Mhz
    Graphics Card(s)
    Gigabyte Geforce GTX 660 TI
    Sound Card
    creative x-fi
    Monitor(s) Displays
    Primary CiBox 22" Widescreen LCD ,Secondary Dell 22" Widescreen
    Screen Resolution
    Both 1680 x 1050
    Hard Drives
    2 x 500G HD (SATA) 1 x 2TB USB
    PSU
    Corsair HX 620W ATX2.2 Modular SLI Complient PSU
    Case
    Antec 900 Ultimate Gaming Case
    Cooling
    3 x 80mm tri led front, 120mm side 120mm back, 200mm top
    Keyboard
    Logik
    Mouse
    Technika TKOPTM2
    Internet Speed
    288 / 4000
    Other Info
    Creative Inspire 7.1 T7900 Speakers
    Trust Graphics Tablet
Remove all external devices except for mouse, monitor and keyboard. Also, unplug the power leads from your HDDs, optical and floppy drives. Power back up. What happens? Don't worry if you see a message about missing OS. If you can get to this stage, plug the power leads back into the devices you disconnected (one at a time) and retest. When you get the same symptoms as you describe, disconnect the last item you connected and try again to verify. Please note that the system MUST be completely powered down and disconnected from the electrical supply BEFORE disconnecting or connecting any power cables.
 

My Computer

System One

  • Manufacturer/Model
    Dwarf Dwf/11/2012 r09/2013
    CPU
    Intel Core-i5-3570K 4-core @ 3.4GHz (Ivy Bridge) (OC 4.2GHz)
    Motherboard
    ASRock Z77 Extreme4-M
    Memory
    4 x 4GB DDR3-1600 Corsair Vengeance CMZ8GX3M2A1600C9B (16GB)
    Graphics Card(s)
    MSI GeForce GTX770 Gaming OC 2GB
    Sound Card
    Realtek High Definition on board solution (ALC 898)
    Monitor(s) Displays
    ViewSonic VA1912w Widescreen
    Screen Resolution
    1440x900
    Hard Drives
    OCZ Agility 3 120GB SATA III x2 (RAID 0)
    Samsung HD501LJ 500GB SATA II x2
    Hitachi HDS721010CLA332 1TB SATA II
    Iomega 1.5TB Ext USB 2.0
    WD 2.0TB Ext USB 3.0
    PSU
    XFX Pro Series 850W Semi-Modular
    Case
    Gigabyte IF233
    Cooling
    1 x 120mm Front Inlet 1 x 120mm Rear Exhaust
    Keyboard
    Microsoft Comfort Curve Keyboard 3000 (USB)
    Mouse
    Microsoft Comfort Mouse 3000 for Business (USB)
    Internet Speed
    NetGear DG834Gv3 ADSL Modem/Router (Ethernet) ~4.0 Mb/s (O2)
    Other Info
    Optical Drive: HL-DT-ST BD-RE BH10LS30 SATA Bluray
    Lexmark S305 Printer/Scanner/Copier (USB)
    WEI Score: 8.1/8.1/8.5/8.5/8.25
    Asus Eee PC 1011PX Netbook (Windows 7 x86 Starter)
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