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Mystery monitor
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Posted by: mavric
When I press the power switch of the computer in the morning my computer does not start even the fans would not work. Then I remove the monitor cable and leave it for about 15 minutes and press the power switch without connecting the monitor cable it starts normally. Then I connect the monitor cable and for the rest of the day it works without a problem.
My computer is p4 2.8 with a gigabyte mother board and I have a ATI radeon 7200 vga card.
Please tell me a way to fix this thing.
Posted by: chainlink
Could be a dodgy connection on your graphics card (try taking it out cleaning the connector and re-seating), a dodgy PSU (try another if you've got one handy) or something more painful to determine (MOBO, etc.).
Posted by: goranpaa
Do you have any possibility to try the monitor and videocard on another PC? Then You will have a good check if they are healthy or not.
Posted by: _toe_tag_
Can you tell us the exact motherboard(model#) you have,because some boards require specific voltage in the video card slot.It will mention this in your documents that came with board.
If there is nothing mentioned about using a certian video card,the one you bought is most likley deffective,exchange or buy new one and try again.
Posted by: thtadthtshldntb
Stupid question, is the monitor plugged into that "extra" female port on the back of your PSU?
Also, describe your home electrical setup. Often the startup voltage requirements for an electrical device such as your PC or monitor are almost twice as much as the running voltage drop. It is unlikely, though theoretically possible that on the particular household circuit, you cannot get enough power to start both at once, kind of like trying to run a 20,000BTU AC and a powerful vacuum cleaner on a 15AMP circuits, though this usually pops the breaker or fuse.
Posted by: mavric
 Quote:
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Originally Posted by thtadthtshldntb
Stupid question, is the monitor plugged into that "extra" female port on the back of your PSU?
Also, describe your home electrical setup. Often the startup voltage requirements for an electrical device such as your PC or monitor are almost twice as much as the running voltage drop. It is unlikely, though theoretically possible that on the particular household circuit, you cannot get enough power to start both at once, kind of like trying to run a 20,000BTU AC and a powerful vacuum cleaner on a 15AMP circuits, though this usually pops the breaker or fuse.
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This problem only happens at the first time of the day when I try to switch on the computer. If the computer starts then I can turn it of and start it again for the rest of the day normally.
Posted by: thtadthtshldntb
Ok, let me summarize.
If you try to turn the computer on, after it has been off for a while (like 8 or 9 hours), with the monitor data cable connected to the video card, it does not work. But if you unplug that data cable and wait for a short time, then turn on the PC and plug the video data cable in after boot up, everything works and you can reset at will for the rest of the day with no apparent problem.
This sounds like, offhand, that you cannot get enough initialization power (specifically current) if the video card has to output a signal to the monitor.
Offhand, with being able to test the PSU I am going to say that you have a power or a PSU problem, try swapping it out and see if that solves the issue. Have you a lot of stuff running on that system (like say 4 or 5 hds and 2 optical drives?). Technically its possible that a bad device i.e. a gone bad device is drawing off more current than it is rated for (this just happend with an old 40GB hd that I have, my system would not boot consitently with it, but if it did it ran mostly ok). On the other hand, your PSU's efficienvy or its power factor could just be getting lower. That happens. Perhaps a ca[acitor in it has blown and the overall level of current ouput has dropped, who knows without further testing.
Anyway. Try swapping out the PSU. If you have another PC in the house, you can use that one, presuming it is close in power rating. If not you may have a short somewhere. Perhaps even in the monitor.
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