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

frustrated - Latest answer on Nov 12, 2012 02:59AM
Hey guys, I've got a problem with my monitor/display and I hope it's not a sign of the mobo going bad. My computer all of a sudden decided to freeze up, and upon restart, the monitor won't get a signal, the light stays yellow. All the other components appear to be running fine, all fans spin, and the HDD appears to be running, there's just no display going to the monitor. I've tried two monitors on it and two different vid cards, I've unplugged and rearranged the RAM, and still nothing. Also, for some reason, when it starts up, the DVD drive keeps acting like it wants to spin, and just keeps clicking away. I'm completely stumped, and hopefully this isn't a sign of the mobo going bad. Any help would be great appreciated!
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123 answers
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Hello,

I have had my LCD for about 2.5 years now. I was using it with a DVI connection and recently it stopped working when I boot up the computer. The light on the monitor just keeps flashing and nothing ever displays. I switched to VGA (analog) and it worked, but the next day, the same thing started to happen. I decided to test it on my brother's CPU, and his old 15 inch HP CRT monitor on my CPU. Lo and behold his monitor works on my CPU, and my LCD works on his computer. What is the problem and how can I fix it? Thank you.

Configuration: Windows XP
Firefox 3.5.2

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Had almost the same problem. I had to force the shut down holding the power button. Then the comp didnt even boot, just did that high pitched beep continuously. Tried to unplug hard disk/keyboard/mouse/monitor, but still wont boot and made those beeps. So then i removed the RAM, booted, turned it off, replaced the RAM, booted and it was all working fine. Looks like it had something to do with the ram (memory cache flushed?). Anyway, it works fine now.

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I have the same problem right now.

I think it's the mobo.

I went and bought a new PCI Express card today and it did not help.

Hopefully, I can take it back.

sniper - Jan 10, 2009 05:02PM
i've got the same problem everything turns on but no signal to the monitor. my brother says it might be my mother board gone bad. can anyone confer with what he says? and whats the mobo
netnerd - Jan 18, 2009 08:42PM
the mobo in question is aslo known as a motherboard
sschriversniper - Apr 29, 2009 11:35AM
Hi,

I had this problem with my daughter's computer last year and mine just a week ago. I read all over the internet that if you take the ram out and your computer doesn't beep, the mobo is bad. Since neither of ours beeped, I assumed the mobo was bad. I put my daughter's computer out in the garage to eventually find a recycling place to take it.

With mine, I had taken all the ram out, and didn't get the beeps, but I happened to have a new stick of ram unopened on my desk, intended for a different computer. I didn't think it would work at all, but I put it in, and it worked. All I needed was new ram.

I pulled my daughter's computer out and tried the ram in it, and it worked as well.

Moral of the story: Don't rely on beeps.

Both our computers had the same symptoms of powering up, the hard drive whirring, the fans blowing, but nothing on the screen and the processor got hotter and hotter the longer I left it on. Maybe the processor appreciates ram.
SHIPRA MITRAsniper - Oct 15, 2009 12:24AM
My pc monitor is aoc (Crt Monitor). monitor is not display anything. when power is on then it is blinking. cpu is normally on. please tell me the solve.Is it motherboard problem or monitor problem.
help - Oct 16, 2009 02:37PM
replace the monitor and see if u get the signal...if u get display with another monitor then motherboard is ok.
robnob - Apr 6, 2009 05:04PM
i have had the same problem with my pc, mine will boot as long as i remove most usb devices,hdd + dvdrw,mouse and keyboardd work fine,can anyone help please, do i need a new dvdrw or is it my mobo. hope this helps.
Kareem - Apr 6, 2009 05:30PM
i had tat problem back in the day. but the problem is tat you have updated your cd drive there for your video card is crashing with the driver and there for u need a cable tat goes from you cd drive to a black slot on the outer edge of your video card i am assuming tat your video card isnt the built in one to the mother board but added on one
Reb - Jul 15, 2009 02:55PM
Hello,

My monitor says ''NO SIGNAL'' and then, it goes to the "power save mode". I tried to plug everything again and it's still not working.
I'm desperate. I've tried everything. Please help me!
fatawu - Jul 30, 2009 01:59PM
my power pack works but my winfast motherboard doesn't. Nothing works at all. It has amd sempron 28000 processor.
I have removed all peripherals in order to locate the fault yet no news. Help me revive my dead board.
TrDe - Aug 14, 2009 02:47AM
1. Have you look at the other side of the mobo for moisture deposites or some syllicate link broken or scratch in the nortbridge / cpu area ?

2. Remove all pci slots except graphic card and give it a try...

3. Grab something small and thin and start tapping arround cooling fan (not on motherboard area !!!)

4. Maybe it is the problem in power supply of mobo :

Get the screwer and release a bit screw holding down mobo , one at a time and stay tuned if the monitor / POST screen turns on (the mobo might be tighten to hard)

5. If you have some other ram beside yours take it and replace that in your computer and see if this will work

6. CPU maybe gone or adjusted wrong in his standings (check also little syllicate pins of cpu at the backside - if any of them is screwed or damaged buy a new one)
arthurReb - Sep 8, 2009 08:09AM
my monitor is showing no signal even though the plug is properly fixed from cpu to it. what do i do .help
robinReb - Oct 20, 2009 04:16PM
Hello,

My monitor says ''NO SIGNAL'' and then, it goes to the "power save mode". neither the keyboard and the mouse has power to them. I tried to plug everything again and it's still not working.
I'm desperate. I've tried everything. Please help me!
satish - Sep 7, 2009 10:53AM
please check the cmos battry is it charged or discharged.
Answer
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Mine is doing exactly the same. Everything spinning but only thing that i can see is the CD rom light flashing. It has gone in to repair so will soon find out.

Felix - Jan 25, 2009 08:27PM
Did you ever find out what was wrong with it when you went to repair?? Same thing happened to mine tonight. I got a "usb controller has exceeded bandwidth" which froze the computer. I then did a manual restart (pushing power button) and then comp won't post anymore, fans going, cd drive working, everything humming, but nothing on video. It almost sounds like it is caught in a loop by the whirring noises it makes. Tried doing the reset cmos jumpers, didn't work.
bhupi - Aug 13, 2009 11:06AM
Mine is doing exactly the same. Everything spinning but only thing that i can see is the CD rom light flashing. It has gone in to repair so will soon find out
Answer
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I am having the same problem right now,my computers comes on and the fan HDD,seem to work fine but doesn't come up on my monitor.Initial it comes up,detects the HDD and attempts to load Operating system then it reboots,but now it shows nothing on my monitor,i only hear the Beep sound at the end of the boot sequence at intervals showing it still restarting.

Some one really need to help me before i go nuttttt

Answer
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moins plus
I am dealing with that right now i tried 3 monitors, same thing no signal, so i threw in a different processor and it works just fine. good luck guys

rik3267 - Apr 11, 2009 09:07PM
I am experiencing the same problem. I changed hard drives about two weeks ago and cleaned the inside. There is no signal but all fans lights and drives are working. I was considering changing the cpu. Did you experience the same problem before getting a new cpu?
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your welcome

Answer
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i have no clue then bro this one is clueless to me. but bro sounds like u got a good ass system so if u by a new computer sell the parts from the old one

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