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turned on comp fails to wakeup monitor

By prismx666 ·
About 1-1.5 sec after turning on of my comp it BEEPS for about 2 sec and the ontinues to function, but it does not turns on the monitor (black screen). When I try to connect to the comp via LAN, I have no problem it functions correctly. I check the monitor it is OK. I replaced VideoCard GeForce FX 5200 with another GeForce card (checked to be OK), but again, I got the same. When I unpluged a VGA cable from the video card I got "no signal" on the monitor. The monitor is all the time in stand-by. I tried to turn off and on ot and I got black screen and the monitor went to stand-by.
Anyway it is not Windows drivers problems since I do not see anything including BIOS loading.

Any idea? please and thank you

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by mjd420nova In reply to turned on comp fails to w ...

It sounds like a system board failure. The video card gets its power from the system board by traces in the system board. Possibly those traces are burned open and not allowing the video card to start and send its BIOS to the CPU. The beep or beeps(how many?? or one long continous beep? for two seconds?) indicates a video BIOS failure. A known good video card points to power supply fault on the system board. A close axamination of the system board might reveal where they are burned open, but it may be a thru the board trace that isn't visible. If the unit can be used remotely by LAN connection, this confirms the failure of the power supply to the video card. If the system board has another AGP slot (if that's what's being used), more to another slot.

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by mjd420nova In reply to turned on comp fails to w ...

It sounds like a system board failure. The video card gets its power from the system board by traces on the system board. Possibly those traces are burned open and not allowing the video card to start and send its BIOS to the CPU. The beep or beeps(how many?? or one long continous beep? for two seconds?) indicates a video BIOS failure. A known good video card points to power supply fault on the system board. A close examination of the system board might reveal where they are burned open, but it may be a thru the board trace that isn't visible. If the unit can be used remotely by LAN connection, this confirms the failure of the power supply to the video card. If the system board has another AGP slot (if that's what's being used), more to another slot.

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by HAL 9000 Moderator In reply to turned on comp fails to w ...

Well from the way that I read this you have fitted a different video Card with no change and have done everything but try another Monitor on this Video Card right?

Why not try another monitor and see what happens?

There re any number of things that could be going wrong that could be causing this to happen but without first doing some very basic Diagnostic Work to try to identify the problem you are fighting an uphill battle as you do not know where to start looking. I would hazard a guess that if the M'Board had burnt out some tracks more than just the Video Out would be affected, so provided that the unit is working properly VIA the LAN I would be looking at the Monitor being incompatible with the Video Output first and then starting moving on from there.

You said that you replaced one GForce with another but as you had no actual video how are you sure that you have the proper drivers installed? I've seen several GForce cards behave like this and when you replace them with ATI Video Cards the unit works perfectly. I think it's something to do with the Refresh Rate that the GForce run at preventing the POST screen loading or at least being visible. Even if you where to modify the refresh rate down to the minimum over the LAN with Remote Desktop you would only start to get a picture once the system had loaded Windows as the drivers for Windows would start working then.

I would ideally try a different Chip Set Video Card ands see if it makes a difference.

Col

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by prismx666 In reply to turned on comp fails to w ...

Thank you guys. It looks like track failure on the board despite it is invisible. Anyway, the monitor is OK and the second Video Card also is ok and its drivers are installed too, as it was once installed on this system before I upgraded the video card once. So the drivers are still there (my Windows has run since purchasing in 2002 without reformating or any problems and the card was upgraded 2 years ago).

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by kw_ng In reply to turned on comp fails to w ...

Is a very interesting situation. If everything seems fine then it could be an odd problem due to some error in connecting the cables. Did you
change any part prior to this incident especially internal connections? Here you need to say more about what you mean by "try to connect to the comp via LAN, I have no problem it functions correctly". If BIOS loading is not seen, as mentioned by others, your video card is not working : loose?, c-mos setting (check your setup setting on display)?, damaged motherboard?, wrong setting on monitor (older monitors have different mode setting)?

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