Solved PC not booting.

G

guilherme1

New member
Local time
6:43 PM
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Hello everyone,
I come here to look for help because I've noticed that if I boot my PC and I have my monitor turned off the computer won't boot, it doesn't even turn my keyboard lights on, and if I turn the monitor on it shows a no output message.

Would like to know if this is related to my graphics card and how to fix it.

Thanks.
 

My Computer

Computer type
PC/Desktop
Computer Manufacturer/Model Number
Custom Build
OS
Windows 7 Home Premium Edition 64-bit
CPU
Intel(R) Core(TM) i5-4440 CPU @ 3.1GHz (4 CPUs)
Motherboard
Mainboard : ASUSTeK COMPUTER INC. H81M-E
Memory
Kingston 1600 Mhz DDR3 8Gb (4x2)
Graphics Card(s)
ASUS HD7770-2GD5 Radeon HD 7770 GHz Edition 2GB GDDR5
Hard Drives
Western Digital WD10EZRX-00L4HB0 SCSI Disk Device (1000GB)
Antivirus
Kaspersky 2013, Malwarebytes Anti-Malware Pro
Browser
Google Chrome
Try to check if one of your RAM is tightly placed.
 

My Computer

Computer type
PC/Desktop
Computer Manufacturer/Model Number
ASUS X550ZE
OS
Windows 7 Home Premium 64-BIT
CPU
AMD A8 7200P
Motherboard
N/A
Memory
8GB 1600mhz
Graphics Card(s)
Radeon R5 (APU) + Radeon R5 M230 2GB Dual Graphics
Sound Card
Realtek ALC269 with SonicMaster
Monitor(s) Displays
Laptop Display
Screen Resolution
1920 x 1080 @60hz
Hard Drives
WDC WD50 00LPVX-80V0TT0 (500GB)
PSU
Laptop Charger
Mouse
ARMAGGEDON TEXTRON SCORPION 7
Internet Speed
100 mbps DOWN / 50 mbps UP
Antivirus
Windows Defender
Browser
Mozzila FireFox, Valve Steam in-game internet browser
you can also check the power connection to the motherboard is tightly in there, check and make sure that the power cord is in the power supply good, and last if not done already make sure that another device will work in that outlet.
 

My Computer

Computer type
PC/Desktop
Computer Manufacturer/Model Number
custom build
OS
Windows 7 pro 64bit
CPU
Intel Core i5-3470 Ivy Bridge Quad-Core 3.2GHz
Motherboard
ASRock Z75 Pro3 LGA 1155 Intel Z75 HDMI SATA 6Gb/s USB 3.0 A
Memory
G.SKILL Ripjaws Series 8GB SDRAM 1600 PC312800
Graphics Card(s)
Nivida Geforce 600
Monitor(s) Displays
Two dell 27" displays
Screen Resolution
1280x768
Hard Drives
256 GB 3.5" seagate
500 GB 2.5" WD
Internet Speed
25/5
Antivirus
Microsoft securtiy essentials, advanced system care 8
Browser
Chrome

My Computer

Computer type
Laptop
Computer Manufacturer/Model Number
MSI GE72VR Apache Pro-416
OS
Windows 10x64 Build 1709
CPU
Intel i7 7700HQ Kaby Lake
Motherboard
Micro-Star Intl. MS-179B (U3C1)
Memory
16 GB DDR4 @2400
Graphics Card(s)
Nvidia Geforce GTX 1060
Screen Resolution
1920x1080 120Hz
Hard Drives
256 GB Nvme M.2 SSD

1TB HDD@7200
Cooling
Cooler Blast 4
Keyboard
Steel Series
Antivirus
Bit Defender Free
Browser
Edge
Sorry for late response, I have done what you instructed me and so far so good, the PC is booting normally :D
 

My Computer

Computer type
PC/Desktop
Computer Manufacturer/Model Number
Custom Build
OS
Windows 7 Home Premium Edition 64-bit
CPU
Intel(R) Core(TM) i5-4440 CPU @ 3.1GHz (4 CPUs)
Motherboard
Mainboard : ASUSTeK COMPUTER INC. H81M-E
Memory
Kingston 1600 Mhz DDR3 8Gb (4x2)
Graphics Card(s)
ASUS HD7770-2GD5 Radeon HD 7770 GHz Edition 2GB GDDR5
Hard Drives
Western Digital WD10EZRX-00L4HB0 SCSI Disk Device (1000GB)
Antivirus
Kaspersky 2013, Malwarebytes Anti-Malware Pro
Browser
Google Chrome
I'm surprised that those suggestions worked.

Someone explain to me why having your monitor turned off would make a diff as to how the system boots? I'm not being snarky. I really don't get it. Why would it matter to the system whether the monitor was powered up or not?
 

My Computer

Computer type
PC/Desktop
Computer Manufacturer/Model Number
iBuyPower NZXT
OS
Microsoft Windows 10 Home Build 15036
CPU
Intel(R) Core(TM) i7-860 @ 2.80GHz
Motherboard
Gigabyte Technology Co., Ltd. P55-UD3L
Memory
4.00 GB
Graphics Card(s)
NVIDIA GeForce GTX 750
Sound Card
(1) Line 6 UX2 (2) Realtek High Definition Audio
Monitor(s) Displays
23" acer
Screen Resolution
1920 x 1080 x 32 bits (4294967296 colors) @ 60 Hz
Hard Drives
(1) WDC WD5000AAKS-00D2B0 ATA Device (2) Seagate FreeAgent Go 250G USB Device
Cooling
Corsair H75 liquid cooler (Very easy to install, actually)
Internet Speed
60M cable modem-->Linksys E1200-->1Gbps net card
Browser
Chrome
Other Info
This is probably the longest I've ever had a Windows machine run without having to restore it to scratch. I'm used to restoring to "factory" about every 2 yrs. I've run with Win7 since new in 2009 and only recently (Nov, '14) restored to clean up the machine from all my 'xperimenting. LOL!! I may never need another machine.

Upgraded to 10 when it was still free, then installed 2017 update.
PeaB4YouGo said:
I'm surprised that those suggestions worked.

Someone explain to me why having your monitor turned off would make a diff as to how the system boots? I'm not being snarky. I really don't get it. Why would it matter to the system whether the monitor was powered up or not?
Click to expand...

If the display has no power going to it, it will not boot like a monitor not being plugged into the display at all.
 

My Computer

Computer type
PC/Desktop
Computer Manufacturer/Model Number
Custom Build
OS
Windows 7 Ultimate x64 SP1
CPU
Intel Q6600 @ 2.6Ghz
Motherboard
Evga NF78-CK-132-A 3-Way SLI
Memory
4Gb DDR2 Corsair Dominator @ 800Mhz 5-5-5-15
Graphics Card(s)
EVGA 560 GTX SC FTW 1GB
Sound Card
Realtek HD 7.1 Audio, Plantronics GameCom780 7.1 Headset
Monitor(s) Displays
Dell S2409W
Screen Resolution
1920 x 1080
Hard Drives
SanDisk SDSSDHII-120G-G25 120GB SSD
Samsung 7200RPM 750Gb SATA
Samsung 850 EVO 120GB SSD
Western Digital Green 1TB 7200RPM
PSU
Xigmatek 750W Quad sli quad core 80% eff
Case
Antec 900 Gaming Case
Cooling
Zalman CNPS9700-NT NVIDIA Tritium
Keyboard
Logitech generic keyboard, MS wireless keyboard
Mouse
Razor Lachesis Banshee V2 Blue, 4000DPI, MS wireless mouse
Internet Speed
152Mb Virgin Media Fibre Optic
Antivirus
Microsoft Security Essentials
Browser
Google Chrome
Other Info
Wireless Gaming Receiver for Windows, Wireless Xbox 360 Pad
MrNeeds said:
PeaB4YouGo said:
I'm surprised that those suggestions worked.

Someone explain to me why having your monitor turned off would make a diff as to how the system boots? I'm not being snarky. I really don't get it. Why would it matter to the system whether the monitor was powered up or not?
Click to expand...

If the display has no power going to it, it will not boot like a monitor not being plugged into the display at all.
Click to expand...

I'm not sure that makes sense to me. Are you saying that the BIOS won't allow the machine to post or load the OS because the BIOS doesn't see a monitor attached to the video card?

The OP said: I come here to look for help because I've noticed that if I boot my PC and I have my monitor turned off the computer won't boot, it doesn't even turn my keyboard lights on...

He didn't say "the PC doesn't boot if I disconnect my monitor from the vid card". When my PC boots, it turns my monitor on, automatically. If I manually turn off my monitor then boot my PC, the monitor comes back on. If I disconnect my monitor from the vid card, I'd have to remote in thru the network to see it, but it boots and does everything that my system does when the monitor is hooked up. This guy couldn't even get his keyboard to react...

Now, if Startup Repair did the job for him, I guess this is all moot. And if re-seating his vid card did the job, then, cool. I just couldn't understand how having the monitor turned on or off made a diff when booting. From the original post, I got the impression that everything booted fine when the monitor was turned on.
 

My Computer

Computer type
PC/Desktop
Computer Manufacturer/Model Number
iBuyPower NZXT
OS
Microsoft Windows 10 Home Build 15036
CPU
Intel(R) Core(TM) i7-860 @ 2.80GHz
Motherboard
Gigabyte Technology Co., Ltd. P55-UD3L
Memory
4.00 GB
Graphics Card(s)
NVIDIA GeForce GTX 750
Sound Card
(1) Line 6 UX2 (2) Realtek High Definition Audio
Monitor(s) Displays
23" acer
Screen Resolution
1920 x 1080 x 32 bits (4294967296 colors) @ 60 Hz
Hard Drives
(1) WDC WD5000AAKS-00D2B0 ATA Device (2) Seagate FreeAgent Go 250G USB Device
Cooling
Corsair H75 liquid cooler (Very easy to install, actually)
Internet Speed
60M cable modem-->Linksys E1200-->1Gbps net card
Browser
Chrome
Other Info
This is probably the longest I've ever had a Windows machine run without having to restore it to scratch. I'm used to restoring to "factory" about every 2 yrs. I've run with Win7 since new in 2009 and only recently (Nov, '14) restored to clean up the machine from all my 'xperimenting. LOL!! I may never need another machine.

Upgraded to 10 when it was still free, then installed 2017 update.
PeaB4YouGo, the monitor being on or off makes no difference on whether the PC boots or not. Mine boots either way. Besides servers do it constantly, it's called 'deadheading'. The Monitor is just a way to see what is going on. Your computer would do the same things if your monitor was on or off. If it was off, you just couldn't see them doing it. I suspect he had some other problem, but the monitor was not one of them, on or off.
 

My Computers

System One System Two

  • Computer type
    PC/Desktop
    Computer Manufacturer/Model Number
    ALWAYS UNDER CONSTRUCTION
    OS
    Windows 11 Pro
    CPU
    Ryzen 9 5900X
    Motherboard
    Asus X570 Crosshair Viii Hero
    Memory
    32GB G Skill DDR4-3600
    Graphics Card(s)
    EVGA RTX 3080 FTW 3 Ultra
    Sound Card
    On Board/Sennheiser PC37X Headset
    Monitor(s) Displays
    3 X Asus 27"
    Screen Resolution
    2560x1440
    Hard Drives
    2 X 1 TB NVME drives
    PSU
    EVGA 850
    Case
    Phanteks Eclipse P400A
    Cooling
    EVGA 280 AIO
    Keyboard
    Logitech G510s/ Logitech G13
    Mouse
    Logitech G502
    Internet Speed
    24/1
    Antivirus
    ESET/MBAM Pro/SAS Pro
    Browser
    Chrome/ Firefox/ Edge
  • Computer type
    Laptop
    System Manufacturer/Model Number
    Dell 16 Plus
    OS
    Windows 11 Pro
    CPU
    Intel Ultra 9 288V
    Memory
    32 GB LPDDR5X 8533
    Monitor(s) Displays
    16" Mini-LED HDR600 Touch 90 Hz
    Screen Resolution
    2560X1600
    Hard Drives
    1 TB NVME
I have one of my PC's hooked to a 40 in. screen that must be turned on separately. Some times I forget and the PC's boots normal almost.
If I turn on the screen late all my desktop icons and scattered all over the place. Other than that no problems.

My other PC doesn't care one way or the other. On or off it boots and things are normal when I do turn on the screen.

If there was something wrong with the monitor it would show up all the time not just on boot is my thinking.

I'm curious what monitor is being used.
 

My Computer

Computer type
PC/Desktop
Computer Manufacturer/Model Number
Home made Desktop
OS
Windows 10 Pro. 64/ version 1709 Windows 7 Pro/64
CPU
Intel i7-6800K @ 4.3
Motherboard
ASUS X-99 Deluxe II
Memory
Corsair Platinum 16 gig @2400
Graphics Card(s)
EVGA GTX 1070 OC
Monitor(s) Displays
Asus 27" LED LCD/VE278Q
Screen Resolution
1920-1080 or 1280-720 HDMI
Hard Drives
INTEL SSD 730-240 Gb Sata 3.0/
PSU
EVGA Platium 1200W
Case
Phanteks Luxe Tempered Glass 8 fans/ one radiator
Cooling
XSPC/ Water Cooled CPU
Keyboard
Das 4 Professional
Mouse
Logitech M705/MX Anywhere 2-S
Internet Speed
100 mbits
Antivirus
Microsoft Security Essentials/ Malwarebytes Premium 3.0/ SAS
Browser
I.E. 11 default/Firefox/ ISP Time Warner Cable/Spectrum
Other Info
LG BluRay Burner/
Sound system-KLipsch-THX/
Icy Dock ssd Hot Swap bays.
Maybe it's just a coincidence, I'm not very good with computers, and btw my monitor is the ASUS VS228H-P.
 

My Computer

Computer type
PC/Desktop
Computer Manufacturer/Model Number
Custom Build
OS
Windows 7 Home Premium Edition 64-bit
CPU
Intel(R) Core(TM) i5-4440 CPU @ 3.1GHz (4 CPUs)
Motherboard
Mainboard : ASUSTeK COMPUTER INC. H81M-E
Memory
Kingston 1600 Mhz DDR3 8Gb (4x2)
Graphics Card(s)
ASUS HD7770-2GD5 Radeon HD 7770 GHz Edition 2GB GDDR5
Hard Drives
Western Digital WD10EZRX-00L4HB0 SCSI Disk Device (1000GB)
Antivirus
Kaspersky 2013, Malwarebytes Anti-Malware Pro
Browser
Google Chrome
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