Doesn't turn on (power), or will not display anything?
Bad memory chips will cause the display to be inoperable. I once put PC-2700 chips in a laptop that would only take PC-2100. The chips I received were wrong, but I didn't check before installng them. Anyway, it worked like a champ for about 5 mo. Then the display went out. I could tell that the computer was still operating, so I sent it back for warranty repair. Of course, the chips were aftermarket, so it wasn't covered under warranty, but that was the problem.
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Either your memory, lcd monitor or the video card is bad.
Check the Memory by steps below:
Remove the Power Cord, Open the Case and remove one of thememory chips. Set the chip aside then try rebooting the computer. If it boots, then you know the memory chip you set aside is bad so mark an x onit with an ink pen. If it fails to boot then move the chip to the nextmemory slot and try rebooting. If it fails take the chip out and set itaside, then put the other chip in and try booting it in both slots. If itboots, just to verify that the chip set aside is bad, mark an x on it and putit into the open memory chip slot and try booting. I'm thinking that it might be your monitor because if the monitor was working and the video card was bad, you would get a No Signal message appearing on your screen. Try another monitor on the computer. Borrow a monitor from a friend, family member, neighbor or co-worker and see if it works. If it does then your monitor needs to be replaced. If it does not work, then you've got a video card issue.
Check Video Card below: If nothing ever posts to the screen then more than likely your video card is bad. Go purchase a Video Card that will fit into one of your open PCI Slots.
OK. First, I'm assuming that you have a Dell Vostro 200 as per the topic title. That said, you machine has a maximum memory capacity of 4GB. So, if you added the 2 - 2GB DIMMS in slots 3 and 4, leaving your original memory in the machine, you will have problems. You must be using DDR2 667 or 800 MHz RAM and the two DIMMS must be in slots DIMM1 and DIMM2 ( closest to the processor). No more than that can be installed.
If you have added any new hardware, remove it and try again. You may have also jarred loose the memory chips, check and reseat all memory. If you have not been in the case at all and all the memory seems seated, remove one memory chip (hopefully you have multiple in the computer), and try again. If this fails, trade the memory chip you removed for the one in the computer. Repeat untill you have checked all memory chips. Hopefully one chip will cause a failure every time and we then know we have a bad memory chip to replace.
Hi , 1st , is the memory correct for your HP , can it be upgraded , because if its the wrong memory chip that would cause your screen to be blank , as far as your power supply that should not cause that problem ...........the only way to find out is to reinstall your old memory chips and see if your system works,,,,,,,,,,,,,let me know .......................Roy
Sounds like your ram is not compatible, when adding memory, you should make sure that its the right speed for your system, also you should install matching chips with the exact same amount on each This site may help.
I can tell you it was most likely caused by the movement of the machine instead of the memory chip. I would suggest doing a few things, first unplug the monitor from the computer, then power on and through the menu in the screen hit "Factory reset" then power off, from there plug it back into your machine and tighten the screws until they are tight - hey I'm guilty of the sloppy plug myself but it will eliminate the need to check it later. Now reboot the computer with the monitor on. Hope this helps.
Take out the newly installed memory chip... If your sure its compatable with the motherboard, reseat it correctly into it's slot and fire up the computer. OR try rebooting with just the old memory installed. Monitor blackouts happen when the incorrect Memory is installed OR when the Memory is not seated properly.
stop chasing video and monitor problems...... :)