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Question HP24f external monitor randomly crashes computer

Jul 11, 2020
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Once a day or so, my new HP24f external monitor turns all while, or green, or yellow, and the computer starts making a loud continuous sound and stops working. I then have to manually shut down the computer by pressing the power button. No pattern in when this happens. sometimes many programs open, sometimes now. sometimes early morning, sometimes end of day. monitor is new. computer is DELL XP15. I go to Windows Event Viewer but can't find any further information on the error. The only thing logged is "the system has reboted without cleaning shutting down first". There's nothing under "Hardware events"
 
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Jul 11, 2020
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Thank you. I cleaned vents/fan and updated the Dell BIOS but unfortunately that did not solve the problem. The monitor keeps freezing my PC every day. I am not sure what to do and even how to check what is the problem. For no apparent reason, the monitor becomes single-colour and the PC stops working. No reaction at all, even in the computers's own monitor. So I am forced to press the on/off button to shut down. I cannot find any information on Windows Event Viewer other than my forcing the computer to shut down. There is no information on what caused the monitor to crash. Where can I find such information in Windows?
 

hang-the-9

Titan
Moderator
Thank you. I cleaned vents/fan and updated the Dell BIOS but unfortunately that did not solve the problem. The monitor keeps freezing my PC every day. I am not sure what to do and even how to check what is the problem. For no apparent reason, the monitor becomes single-colour and the PC stops working. No reaction at all, even in the computers's own monitor. So I am forced to press the on/off button to shut down. I cannot find any information on Windows Event Viewer other than my forcing the computer to shut down. There is no information on what caused the monitor to crash. Where can I find such information in Windows?
That is not the monitor, it's the computer crashing. Does the system work fine with just the laptop screen if you use that for a day or two? Or try with another video cable? Test with one RAM stick at a time or different RAM. There is a memory testing program called memtest you can use, that can help.
 
Jul 11, 2020
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Thank you. The computer worked fine for 8 years. It crashed for the first time 10 minutes after I connected my new HP24f external monitor. It crashes about once a day whenever the monitor is connected. When the monitor is not connected, it never crashes. So it must be something wrong with the monitor. Unfortunately now it's too late to return it to the shop. I tried to download memtest and wrote the image to a USB stick but it does not work. When I press F12 to try to boot from the USB stick, I get the message "Operating system not found".
 

hang-the-9

Titan
Moderator
Thank you. The computer worked fine for 8 years. It crashed for the first time 10 minutes after I connected my new HP24f external monitor. It crashes about once a day whenever the monitor is connected. When the monitor is not connected, it never crashes. So it must be something wrong with the monitor. Unfortunately now it's too late to return it to the shop. I tried to download memtest and wrote the image to a USB stick but it does not work. When I press F12 to try to boot from the USB stick, I get the message "Operating system not found".
Did you try another monitor with the laptop? The monitor can't cause crashing it just displays what the laptop sends to it, maybe the port it's on is bad or the video card. Need to test with another monitor, it will probably do the same thing.
 

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