No display!

I'm haveing a problem with my computer and i can't figure out what is causing it. I hope someone can help.
When i boot up, my display stays in stand-by. When setting it on manually it says "no signal".
I have tried with several other screens and still nothing, so that cant be it. I uninstalled the graphics card and installed it in an other computer, directly connecting my monitor on it. Everything went allright, so it isnt my graphics card either. Then i thaught it could be the psu, I swithed it also with the psu of an other computer. Same voltage and everything. But when i booted up I still didn't have any display. So i guess it isnt the psu either. The mainboard seems allright on first sight. Nothing burned or leaking, all leds on the board itself working allright, ect
Last time the computer worked my girlfriend was burning a dvd useing dvd-shrink. She rebooted afterwards when the burning was completed but never got any display again.

Does anyone know what else it could be? And perhaps how i can check it?

Grtzz

 

Can you please explain this point further? Does anything appear on the screen? You mean by standby the standby of the monitor screen?

Is the system itself booting up? Do you hear any strange or extra beeps?

 

Hello,

No, nothing appears on the screen at all. It just stays in stand-by. The screen I mean. When I set the screen on myself It just says "no signal detected", the same message i'd get when i dont connect the monitor with the computer.
Otherwise, the system boots up allright. Its not beeping or anything. It just boots up like it would normally do, except for the monitor of corse.

The Mainboard is a Gigabyte GA-7N400. I dont remember what cpu it has exactly, I can check it if needed. Its an AMD Athlon, but cant remember which exactly. The graphics card is Geforce4 mx440-8x ,from Nvidia of corse. its has 2x256ddr ram in dual, but I would have to check this also to tell what brand and stuff it is.

 

No beeps,-- try some different ram, if you have any spare, or, remove, and refit the ram, it is possibly dut/fluff build up , if the machine is very dusty inside, get an airosol,of compressed air, and blow out when computer is cold.

 

I dont have any spare ram but i'll switch ram with this computer. But there are 2 ram modules installed, can it be that they both fail at the same time? Cause if only one would fail, 256 ram isnt much but it is enough to boot up a system without any problem? i'll check it first thing in the morning, thx for the tip.
I was woundering, if it would be one of the ram modules that is damaged and not just dust or anything. Could it damage an other system if i'd test them out on it? That way I can exclude that one too if it would be something else.
Except for the ram, one thing i havent allready checked either is the cpu. Is it possible for it to be the cause of this problem if it would be burned or something? I havent noticed any slowdown, crash, noisy fan or anything but on the other hand i didnt really pay any attention to it. I didnt really expect that to happen.
I havent checked it yet because i would have to take the fan and all out of the system first. I dont have any thermal tape or so, thats why i kept this for last.

I'll check the ram first and let you know if it worked.

Grtzzz

 

OK nootjes, we have to clarify things before we proceed.

Did you try your computer on another monitor screen? I think you did, you said you got the same result. I hope you could check it out again.

You already tried your monitor screen on another computer, so it can't be faulty.

Your monitor isn't getting a signal from the computer. Check the cable that connects your monitor to your computer. I assume that the monitor is getting it's power from a separate power source (not from the PSU).
If you have a spare cable, then try it out.

Of course a faulty RAM, CPU could cause this, but I'm hoping that it's as simple as checking the cable of the monitor.

You're saying your computer is booting up normally, how do you know if you can't see anything?
Anyway, I don't suspect the RAM, but I had your problem and it was a matter of dust and repositioning. Just take out the RAM chips and put them back. See if this helps.

Awaiting your reply

:wave

 

I've checked the ram by testing it on this system i'm on right now. I've tested them separatly to see if it could be just one of the two ram-modules that were faulty. Both modules are still ok. Everything booted up en ran allright. Just a bit slow but cant expect anything else useing only 256 ram
As for the monitor, i've tested other monitors on the computer and they all had the same problem. Plus, i'm useing the monitor on this computer i'm useing right now, so i dont think its the monitor itself. I have also tested the graphics card on this computer, connecting my monitor on it and had no problems at all. So it isnt the cable or the graphics card port that is causing this issue. Otherwise i would have had the same problem on this computer, right?
How can i test a cpu? Its socket A and i dont have an other computer with that socket to test on...
What should i do next? I'm running out of idea's.

Grtzz

 

If you still get no beeps, and cannot get started, you are a little up the creek, as I can only suggest cpu, and motherboard tests, when the computer is able to boot up tp Windows.
Perhaps someone else might have a way, but without another motherboard, or cpu compatable with those of socket A, .....................
I assume you tried cleaning up, - if you have some thermal patse, you can remove the heatsink and fan, clean up heatsink face, and cpu face, and apply new themal paste, and then try again.

 

How can you test or see if your mainboard's dead? Beside burned spot and leaking batteries? or isn't that possible?
I dont have thermal paste or tape. I'll get some this week. But if it is the processor, s-a processors are hard to find nowadays. New ones that is.

 

Hmm, does the Video Card's fan start when the machine is running? Stupid question, but it sounds like the AGP slot was compromised in some way. I don't know much about that board, but from what I've read it doesn't have Onboard video. If you have another AGP Bus video card, try that out and see.

 

Yes, the fan starts. The fan is makeing more sound than it normally should, but its working. I havent tried with an other card. The one i'm useing now is a Radeon 9550. I have only nvidea drivers installed, I hope it wont hurt to run an ATI card on.
I havent tested useing an other card yet, but I did test the graphics card on an other computer though. It was still as noisy but the display worked allright.
That mainboard I tested the card on does have onboard graphics. The monitor was connected trough the graphics card vga, not the mainboard; And setted the bios to useing it. The drivers of the onboard graphics were installed though, through the chipset drivers installation. But normally if setted in the bios, the mainboard should set the onboard on and use the card. Everthing worked allright, I even used it on the same monitor to be sure it wasnt defected afterall.

Grtz

 

I would definitely recommend trying another card, just to be sure. It really doesn't matter if the NVIDIA drivers are installed still. This is just for troubleshooting, not for every day use, regardless, any card should still show a display at least during boot.

If a different card still doesn't show the display, then I would say the motherboard is you're issue.