Solve : Monitor takes several attempts to start?

1.	Solve : Monitor takes several attempts to start?
Answer» I have a LCD monitor, PHilips 220E which has a vga and dvi connection. My pc is connected to it via dvi-d while my xbox is connected to it via vga. This worked fine for over a year. Recently I'm having problems with the monitor because I dont get any video when I start the pc (no post and no WINDOWS boot). I need to restart the pc several times before I get any video. At first I thought it was a video card problem so I disconnected the monitor from my graphics card and connected it to the onboard video that my pc has. Same problem. Next I thought it was a defective dvi cable so I BOUGHT a new dvi cable. Same problem. Now I'm beginning to think it may be a monitor problem. What ELSE could it be? Please help. The monitor is fairly new. Just over a year old. PS. The xbox doesnt have any problem though. Monitor works fine. The fact that the Xbox isn't having a problem with it and that the computer isn't even getting a POST kind of eliminates the chance of it being the monitor. Not having a monitor won't CAUSE a system to not POST. Faulty video card, memory, or motherboard on the other hand will cause a computer not to POST. Even without a monitor, you should be able to tell if the computer is completing the POST (single BEEP). If you're getting any other kind of beep pattern or no beep at all, it's not the monitor.If both the graphics card and the onboard graphics produce the same result, what could it be? The motherboard? I dont want to go on replacing things that dont have a problem in the first place.Most likely the motherboard or power supply. The only other way to test it's not the monitor is to test it with another system and test another monitor with your computer.Monitor won't switch between analog & digital unless you turn it off first. You probably had it on a power strip before. You can also use the input selector switch on the monitor.Also I forgot to mention before. When I switch on the pc, I hear all the fans working, the led in motherboard is lit on, I can see the hard drive lite blinking and I can open and close the dvd drive. Is this still a power supply problem? You mentioned that it didn't work when you connected it to the onboard graphics. Try the onboard graphics again but with the graphics card physically removed from the system as when a separate graphics card is installed, the onboard card is automatically disabled. Also, have you tried connecting the monitor to the PC with the VGA cable instead of DVI?Quote from: jquin3 on May 22, 2011, 11:38:53 PM Also I forgot to mention before. When I switch on the pc, I hear all the fans working, the led in motherboard is lit on, I can see the hard drive lite blinking and I can open and close the dvd drive. Is this still a power supply problem? It's still possible the power supply is the problem, or it could be the motherboard, like I said before. Without proper tools, like a multimeter, and the know how, all you can do to eliminate either as a possibility is to swap out the PSU from another computer. The functions you are referring to can all still happen even if the power supply is failing but not completely dead. Is the system speaker (small speaker connected to the motherboard) present and if so do you hear a beep when boot?Quote from: quaxo on May 23, 2011, 04:11:05 AM It's still possible the power supply is the problem, or it could be the motherboard, like I said before. Without proper tools, like a multimeter, and the know how, all you can do to eliminate either as a possibility is to swap out the PSU from another computer. The functions you are referring to can all still happen even if the power supply is failing but not completely dead. Is the system speaker (small speaker connected to the motherboard) present and if so do you hear a beep when boot? There's no beep like when it does the POST. Right now its really no longer powering on unlike before where it takes several attempts to turn it on. But the fans and all the rest I mentioned are working still. What do you mean it's not powering on? What's not powering on? If the fans and everything else are working, what are you referring to? If it's not beeping like it does with the POST, there is something wrong with the system, not the screen. Usually, a POST will not occur if: 1. The motherboard is faulty, damaged, or dead. 2. The processor is faulty, damaged, or dead. 3. The PSU is faulty or damaged. (If it were dead, it wouldn't turn on at all.) 4. Any of the above are not connected correctly.Quote from: quaxo on May 24, 2011, 12:09:02 AM What do you mean it's not powering on? What's not powering on? If the fans and everything else are working, what are you referring to? If it's not beeping like it does with the POST, there is something wrong with the system, not the screen. Usually, a POST will not occur if: 1. The motherboard is faulty, damaged, or dead. 2. The processor is faulty, damaged, or dead. 3. The PSU is faulty or damaged. (If it were dead, it wouldn't turn on at all.) 4. Any of the above are not connected correctly. I kinda figured its not the monitor anymore. In my mind most likely its the mobo or psu. What I meant when I said its not powering on anymore is that before the problem is it takes several tries for me switching on the pc before it even POSTs and boot, but now it doesnt even POST anymore. When I turn on the pc, the case fans turn on, also the psu fan is working, the dvd drive also ejects, I see the hard drive lights blinking but no POST (with the beep) and boot to windows.Check CMOS battery.I removed the power supply and tried to open it to check for any blown capacitors and clean it by blowing compressed air to remove the accumulated dust inside. Was surprised to see some melted gunk inside. Its a white-grayish white gunk with consistency of chewing gum. Some of it were covering the what I think is the inductor (the one with the copper coil thing). Dont know where that melted gunk came from. But I think I need a new psu.For future reference and a disclaimer for anyone who reads the previous post: Never open a power supply unless you know what you're doing and trained in working on high voltage electronics. Even a "dead" power supply can hold a charge for years that is more than strong enough to stop the human heart. The "risk of electric shock" sticker is there for a reason.

Answer»

I have a LCD monitor, PHilips 220E which has a vga and dvi connection. My pc is connected to it via dvi-d while my xbox is connected to it via vga. This worked fine for over a year. Recently I'm having problems with the monitor because I dont get any video when I start the pc (no post and no WINDOWS boot). I need to restart the pc several times before I get any video. At first I thought it was a video card problem so I disconnected the monitor from my graphics card and connected it to the onboard video that my pc has. Same problem. Next I thought it was a defective dvi cable so I BOUGHT a new dvi cable. Same problem. Now I'm beginning to think it may be a monitor problem. What ELSE could it be? Please help. The monitor is fairly new. Just over a year old.

PS.
The xbox doesnt have any problem though. Monitor works fine. The fact that the Xbox isn't having a problem with it and that the computer isn't even getting a POST kind of eliminates the chance of it being the monitor. Not having a monitor won't CAUSE a system to not POST. Faulty video card, memory, or motherboard on the other hand will cause a computer not to POST.

Even without a monitor, you should be able to tell if the computer is completing the POST (single BEEP). If you're getting any other kind of beep pattern or no beep at all, it's not the monitor.If both the graphics card and the onboard graphics produce the same result, what could it be? The motherboard? I dont want to go on replacing things that dont have a problem in the first place.Most likely the motherboard or power supply.

The only other way to test it's not the monitor is to test it with another system and test another monitor with your computer.Monitor won't switch between analog & digital unless you turn it off first. You probably had it on a power strip before. You can also use the input selector switch on the monitor.Also I forgot to mention before. When I switch on the pc, I hear all the fans working, the led in motherboard is lit on, I can see the hard drive lite blinking and I can open and close the dvd drive. Is this still a power supply problem? You mentioned that it didn't work when you connected it to the onboard graphics. Try the onboard graphics again but with the graphics card physically removed from the system as when a separate graphics card is installed, the onboard card is automatically disabled. Also, have you tried connecting the monitor to the PC with the VGA cable instead of DVI?Quote from: jquin3 on May 22, 2011, 11:38:53 PM

Also I forgot to mention before. When I switch on the pc, I hear all the fans working, the led in motherboard is lit on, I can see the hard drive lite blinking and I can open and close the dvd drive. Is this still a power supply problem?

It's still possible the power supply is the problem, or it could be the motherboard, like I said before. Without proper tools, like a multimeter, and the know how, all you can do to eliminate either as a possibility is to swap out the PSU from another computer. The functions you are referring to can all still happen even if the power supply is failing but not completely dead.

Is the system speaker (small speaker connected to the motherboard) present and if so do you hear a beep when boot?Quote from: quaxo on May 23, 2011, 04:11:05 AM

It's still possible the power supply is the problem, or it could be the motherboard, like I said before. Without proper tools, like a multimeter, and the know how, all you can do to eliminate either as a possibility is to swap out the PSU from another computer. The functions you are referring to can all still happen even if the power supply is failing but not completely dead.

Is the system speaker (small speaker connected to the motherboard) present and if so do you hear a beep when boot?

There's no beep like when it does the POST. Right now its really no longer powering on unlike before where it takes several attempts to turn it on. But the fans and all the rest I mentioned are working still. What do you mean it's not powering on? What's not powering on? If the fans and everything else are working, what are you referring to?

If it's not beeping like it does with the POST, there is something wrong with the system, not the screen.

Usually, a POST will not occur if:
1. The motherboard is faulty, damaged, or dead.
2. The processor is faulty, damaged, or dead.
3. The PSU is faulty or damaged. (If it were dead, it wouldn't turn on at all.)
4. Any of the above are not connected correctly.Quote from: quaxo on May 24, 2011, 12:09:02 AM

What do you mean it's not powering on? What's not powering on? If the fans and everything else are working, what are you referring to?

If it's not beeping like it does with the POST, there is something wrong with the system, not the screen.

Usually, a POST will not occur if:
1. The motherboard is faulty, damaged, or dead.
2. The processor is faulty, damaged, or dead.
3. The PSU is faulty or damaged. (If it were dead, it wouldn't turn on at all.)
4. Any of the above are not connected correctly.

I kinda figured its not the monitor anymore. In my mind most likely its the mobo or psu. What I meant when I said its not powering on anymore is that before the problem is it takes several tries for me switching on the pc before it even POSTs and boot, but now it doesnt even POST anymore. When I turn on the pc, the case fans turn on, also the psu fan is working, the dvd drive also ejects, I see the hard drive lights blinking but no POST (with the beep) and boot to windows.Check CMOS battery.I removed the power supply and tried to open it to check for any blown capacitors and clean it by blowing compressed air to remove the accumulated dust inside. Was surprised to see some melted gunk inside. Its a white-grayish white gunk with consistency of chewing gum. Some of it were covering the what I think is the inductor (the one with the copper coil thing). Dont know where that melted gunk came from. But I think I need a new psu.For future reference and a disclaimer for anyone who reads the previous post:
Never open a power supply unless you know what you're doing and trained in working on high voltage electronics. Even a "dead" power supply can hold a charge for years that is more than strong enough to stop the human heart. The "risk of electric shock" sticker is there for a reason.

Solve : Monitor takes several attempts to start?

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