Monitor Gets No Signal / Computer Won't Boot [Solved/Closed]

I KNOW THE SOLUTION

REMOVE YOUR POWER CORD AND HOLD THE ON BUTTON FOR LIKE 30second TO A MINUTE AND THEN CONNECT IT BACK AND TURN IT ON

You should start a new thread.

The first thing to rule out is overheating (CPU, motherboard, hard drive or power supply)
then I would check for bad memory (if you have two modules - swap them out for testing)
then I would test with another power supply
only after I have checked ALL of these would I think it was the Motherboard.

Good Luck

I believe it is because the video card changed resolution. I had two displays, working removed one still working. Moved the computer and now no display works. I tried repair and getting into safe mode on Xp with no luck it goes straight to windows Xp and obtain a black screen instead of my desktop. The lcd monitor says no digital signal and turns off. I played with bios, tried clearing the cmos no luck. Is it time to move on? or look for and old school monitor? Also read online about not using a usb keyboard, but don't see how that helps, but will try.

I just build a new i7 system. This is my first build but I was very careful and read through everything (I think). I can't get the damn thing to post at all.

i7 920
ASUS P6T (non deluxe) Mobo
HIS Radeon HD 4350 video
OCZ 6GB DDR3

All the lights turn on in the case, fans spin up, and nothing on the screen. Plugged in the system speaker and not a beep.

I have tried the following:
1. removed and reseated all DIMMS as well as trying to just leave one in. They are in the correct bank.
2. unplugged all components except for monitor
3. tried resetting CMOS via the on board jumper
4. moved my video card to the other PCI-E slot
5. removed the power cable, held the power button while reconnecting power
6. Unplug my monitor from power (to reset) and tried both VGA and DVI connections

I wanted to try an old video card and pulled an old ATI from a Dell I had (5+ years old) but it doesn't look as if I have the proper slot for it on this board. I'm really out of ideas and stressed.

Did I miss anything? HELP!

Hello everyone, i tried kareems solution of holding the power button, the first time it worked, but i had forgotten my hard drive was not attached, so i turned it off

now i'm back to the "no signal to monitor"

maybe i'm not doing it right, do you hold the power button while plugging in the power cable back? or do you let go?

See my explanation on how to troubleshoot the problem on the following thread :

http://en.kioskea.net/forum/affich 27227 computer powers on but does not boot?#13

Nope the power on button trick didnt change anything :( cant even get the speaker to report a error beep, and this is 3rd PC i've seen this week with same issue

It does sound like a major problem.
Unplug the DVD drive and see if it will boot. you might get lucky.

Laughed when I read your solution, but what the hell!, So I tryed it and it worked. Even at my age you learn something every day. ThanksXINY

Plz Help ! I got an irq conflict blue screen error and while the pc was dumping info to memory it got stuck at 5%.Then i restarted the pc and the monitor wouldnt turn on.I also noticed that the HD 's wont boot or seem to work.Fans worked and lights were on but that was all.Also the turn off button wouldn't respond.I had no way to test the power supply and i ordered a tester and another psu.I took all parts out and left 1 HD and the mobo and still no luck.No signal to TV and no BOOT.I checked the mobo it doesnt look < BURNED > . My system
Intel Core 2 Duo E8600
Gigabyte GA-73PVM-S2

If i still have the same problem while trying a new PSU how could i test the mobo with what ? To check if it's < BURNED > ? Thx

Hey everyone,
I had a really similar problem that I have only just solved.
My PC is still really new only about 2 months old and its a pretty decent rig.
It crashed and totally froze up for ages so I unplugged it and turned it back on again and lo and behold, lol, no power to any peripherals or any monitor output.
Anyway after a few days without it I plucked up the courage to reset the CMOS with a screwdriver and it worked fine, I went into the BIOS like the manual instructed and 'restored optimal settings' and it rebooted with no results so I re-set it again and instead of going to the bios hit F1 for a normal boot and it is fine now UNTIL!
I turn it off =/
And then I need to reset it again so I don't really know how to solve this problem...
Anyone got any ideas?
Thanks a lot :)

I just experienced the same problem with my HP Pavilion desktop this morning, I hadn't used it for a while because I was moving,and last time I used it, it worked fine, but when I plugged it in this morning, power came on, hdd spun, dvd had power, all fans spinning, but no monitor signal or boot up or beeps. It seemed as though the PC wasn't getting enough power to boot.
I thought something might have been knocked loose when it was moved, so I unplugged the hdd cables, video card and power cables to the motherboard quite a few times, checked the ram, though I didn't remove the ram, and took out the battery and then back in again, and I checked for dust but everything seems very clean. After a longwhile of fiddling around with all the connections, Eventually it just started fine for no good reason and went into windows, but then when I tried to restart it it just kept losing power and rebooting at the windows load up, turned it off and it wouldn't boot and no display again, all the time there were no beeps or funny noises. So I pulled one of the ram sticks out completely, started it and away it went, perfect, I tried turning it on an off a few times, and it continued to work well. So then I put the ram back in, and it reads both and it is currently still working fine, even after restarting a number of times. ??!
I can't be 100% sure, but it seems that the ram may have not been contacting properly, although it felt secure and was clipped in properly, others with this problem could try doing the same, and I did use an anti-static strap. It might be that the ram stick was not seated to the motherboard correctly. I thought it was odd as I thought it should have sent a beep code indicating the ram was at fault, but I think that my onboard speaker is not connected, also strange is it went fine with one of the two ram sticks removed, and then after putting it back in they both were reading and i tried turning in on and off again a few times and it seems to be working fine now.
However, I still have a a nagging thought that something other than the ram could have caused it, i am thinking if if one ram wasn't seated properly, it still should have booted up on the other one, as it did when I removed it. If it does the same thing again, I would then assume that the ram or the ram slot on the mb is bad, or the PSU is faulty and not providing enough power. And at the worst, the CPU is faulty or even worse than that the is the motherboard is at fault.
My best guess for now is that the ram was causing an error, and conflicting with the other ram, preventing the PC from booting, after removing it and then reseating it in the same place it removed the error or compatibility issue.

Hi, I read this thread yesterday because I was having the same problem, my card is a 8800GT. Just in case the thread stays around and other people read it, I found that my graphics card had come loose when I moved house, all I did was push it back in and it boots fine now. Hope this helps someone!

I had the same problem recently where there was no signal to the monitor but everything seemed to be running. I purchased a new video card and was not the problem. I tried the other tricks mentioned here like pulling the power cord and holding the start button, swapping ram but no luck. I finally pulled the battery from the BIOS and viola, it started. Question is; does that mean the battery is getting weak and needs to be changed? I guess if the problem persists I'll try that.

Thanks for the posts.

wow! removing the power cord really works! i wonder why it does work? Thanks!

To All,

I experienced same problem months ago. Yes I did the Power Cord thing and some times it worked for me. Also I used safe mode to be able to get video and this I did type by memory since I was not able to see at the time I was booting. What finally solved my situation for ever was to go back to the original driver of the video card (ATI HD4870) by installing it from the safe mode in Windows Vista. Month later I got a later version of the driver, even newer than the first updgrade I had for it. Never had problems back. Also I was always suspicious about Windows update since some times after doing a system recovery the problem was not happening for a while but this is pure speculation.

By the way the future is LINUX. Keep that in mind, that day all of these problems will go away.

Yea, well my computer has something of the same issue. my dad was tinkering with it, and when i tried turning it on after the moniter just said no signal'. Im not sure if this helps, but my mouse light doesnt show, nor does my keyboard light, even thought they are both plugged in. ive tried 2 different moniters and 2 different mouses. Im not sure and im really stuck.

I have the same problem with my Dell computer "computer all of a sudden decided to freeze up, and upon restart, the monitor won't get a signal, the light stays yellow". And I will try Kareem's way to see if it is working. Thanks !

Had the same problem. Online and all of a sudden the monitor goes black and tells me to check the video cable. Checked cables, all connections, unplugged and reset using the power button NOTHING. Switched out the video card and WHAM problem solved. However my victory was short lived. I changed the video card last night and this morning same thing happened, all of a sudden black screen. I had one more video card which is what I'm using right now. But if the problem is with the mother board then its going to short out this card too. So if anyone knows anything as to what might be causing this please help. I checked all the previous responses and looked for all of the signs of a busted mother board but it looks all good. Any other suggestions?

today morning when i woke up and turned on my PC ( AMD 3500+ w NVidia 6800GSold sturdy for the last 3 yrs)
the monitor didnt get turned on because of no signal.
i restarted and heard no RAM beep.
took the RAM out of the MOBO turned on again.. heard the beeps - signal that MOBO isnt smoked. so luckily checked this forum on my iPhone.
last nite i had kicked the CPU accidentally and the mouse came loose. So i hastily put it back in the keyboard socket. ( i use USB keyboard so the KeyBoard socket was empty)

Today after the problem. i tried the Pressing power button without the power cord trick but it didnt work
then i remembered that only the KB and mouse have to be plugged in so i removed the USB KB and put the normal one in and found out the mistake with the MOuse socket
so i put them both where they should be and VOILA it worked. im typing from my PC now :) THANKS OP