The information on Computing.Net is the opinions of its users. The monitor works for 20 minutes and after that it starts turning off and on. Boot into the BIOS and look at them in there. Laptop Screen shuts off but computer is still running I hooked up my laptop to an external monitor and it works fine up until my laptop gets the black screen then my external monitor goes blank as well. I got the same model new monitor from dell warranty but the problem did not stop, it kept going. Such I hooked up my monitor to another computer and it wouldn't turn on. and liability for the content of Computing.Net and its accuracy. this just started a few days ago where I would be on the computer the monitor would turn off but the computer would stay on. Download and install HWMonitor to view temperatures and voltages in real time. So, I'm drawing a blank at what else it could be. Well, I might send it to a repairer, which might cost a bit.. Ok I am a little lost here. I've tried to install new drivers, I have also tried to remove dust from inside of the computer. If I turn the fan off it shuts off in about a min. Computing.Net cannot verify the validity of the statements made on this Hi, I already have this program. I think your monitor is fine but your system won't post. Could be a glitch on the sensor settings. Display turns off while computer stays on. You said you ran anti virus and anti spyware this tells me the computer is working and that the monitor is coming on. Where do I find this in the BIOS, and what values do you want me to type in? From your post I am having trouble understanding the issue. I have also tried a different monitor but still have the same problem. Computer stays on however monitor turns off. But I can try to change the settings that should be changed. I am now on the second monitor from dell and both have had the issue where it starts shutting off after 30 or so seconds. Hanseens has a 1000 watt Corsair PSU with 80A @12v. Get it from the link below. My monitor shuts off during games, but the computer stays on, my monitor shuts off when i turn my PC on, Alienware M15x laptop screen shuts off but computer still on. opinions may not be accurate and they are to be used at your own risk. The only way to be certain about those voltages (and hence the PSU) is to physically check them with a multi-meter. The LCD for my computer screen randomly shut off(the light on the monitor is off as well), but my system stays on(I can still hear my music coming out of the speakers). My monitor shuts off, (blacks out) I do easily see that the LED is not on, and the green/blue button on the monitor turns orange (on, but no signal). why does my computer shut off by itself won't turn on again? When I'am playing games, my monitor randomly shuts off, the audio aswell.. however the computer stays on! If you can't enter the BIOS with your present keyboard then try using a PS/2 type keyboard. You have to be a little bit crazy to keep you from going insane. opinions may not be accurate and they are to be used at your own risk. For instance, launching a game would cause my monitor to turn off. Do u hear any beeps when u start the system? Your temperatures appear to be OK. With the errant voltage it probably is a power supply that is going. The information on Computing.Net is the opinions of its users. site. However the computer shuts off. This can happen when I've played for like 1 hour, 30min or even just a couple of minutes, I haven't experienced this happening when watching movies or such. The 3.3V is the voltages right? I tried to turn off the computer but i can't do that from the power button. When the monitor turns off, the PC stays on and the fan starts to work very loudly. Computing.Net cannot verify the validity of the statements made on this I used another monitor with the computer that my LCD shut off on and the new monitor works just fine. I am using a Acer M1202 desktop computer and using Windows Vista OS. I bought this computer 1 year ago, It's really expensive and has really good components!This computer was working fine for some months, the my problem started. If anyone reading this can guide me in the right direction I'd appreciate it. Do you want me to post you the results? How do you know the computer stays on but monitor goes off? site. I got red LED lights inside of my computer that stays on aswell as the fans also stays on. Are you having trouble getting the system to boot? When I'am playing games, my monitor randomly shuts off, the audio aswell.. however the computer stays on! Such This keeps my monitor going. Computing.Net and Compnet Ventures, LLC hereby disclaim all responsibility Dell monitor Turns Black But system Is On, my computer is on power safe mode and wont go. I tried a different monitor and the same thing happened. Do u have v-card? Did u try another monitor? + It can't be an overheating problem, cause my temps are below 60*C even when gaming. My PSU isn't actually a cheapie, but of course, yes it might have f* up aswell!I have heard that before, that the reason for this problem might be a failing psu. My monitor shuts off during games, but the computer stays on, Alienware M15x laptop screen shuts off but computer still on. For example, 3.3v x .95 = 3.135V. Times this happens is random. All values should be within +-5% of the stated values. However, your 3.3v, 5v, +12v are all out of spec. Do you think I will have to change my PSU? Not a cheapie. Well, the monitor is losing signal, so all I will have to do is restarting the computer again, but it will shut itself off again when starting a game. Are you having trouble shutting down the system? Still could be going bad though. The power button remains green but the screen is black. [Solved] My Monitor will randomly shut off -cannot find signal-. Computing.Net and Compnet Ventures, LLC hereby disclaim all responsibility Then when I keep trying to move the move to try and make it go back to normal, I can hear a beeping sound and then it becomes impossible to make the screen appear apart from turning off the computer and then turning it back on again. How can I figure the tightned screws thingy? I have rigged a 60mm fan, approx 4CFM, to the rear louvers of the monitor to blow inward. yes, the monitor is turning off while I am on the computer, I have the same problem myself, the computer screen turns off while the hard drive stays on. See the original post. Fitting a PSU is not so difficult but again if you've not done it before you might prefer to get someone with experience to do so. and liability for the content of Computing.Net and its accuracy. I can't enter my BIOS with my new keyboard, with the NUMLOCK on at the boot up for some reason. Are you saying when you shutdown the monitor turns off but the computer doesn't? This computer was working fine for some months, the my problem started. I have a few things that might be the problem, but still don't know how to solve it:- Failing PSU- Failing GPU- Dust, PC SPECS:- XFX Radeon HD 6970- Intel Core i7 quad processor i7-920- Corsair Powersupply ATX, CMPSU-1000HXEU, Always pop back and let us know the outcome - thanks. To be honest I'm not really professional at computers. Do you have the screws tightened down on the connector to the GPU? I plugged it in amd and nvidia graphics cards, with vga and hdmi cables, to a laptop and to a desktop computer. If that's not your scene then taking it for repair is the only option. Well, the monitor is losing signal, so all I will have to do is restarting the computer again, but it will shut itself off again when starting a game. Is the monitor turning off on it's own while you are still on the computer? Another thing I have tried is to lower graphics settnings, but again this shouldn't be a problem, my computer should easily be able to handle max graphics. My monitor goes on standby and it kind of loses signal from the pc because nothing like alt+f4 or stuff like that works. Sometimes I have the computer on for 8 hours, play 1 game, then close it and when I try to open it again, it happens. Numlock is usually a BIOS setting and the fact that you cannot get in there to check does make one suspect that the voltages really are as given and you need a new PSU. Title says it, Can you tell ,me how to add a photo? Sorry, I apparently did not scroll down enough and missed that, though I thought I went back to see if the PS was listed. Disconnect vga/dvi/hdmi cable from the system and switch on the monitor, now do u see anything displayed? Why? Your readings are much lower than that.