I have a compaq Evo D510 computer and about 1 month ago I had added a new AGP card with dual monitor capability, and a new 512MB Ram. It was working well until two days ago, when I saw that the display was not coming. As the computer had been ON since morning, I had restarted it by pressing the power button for about 5 seconds and turning back on again after a while. But there was no display, and every thing on the computer seemed to be working, like leds lighting up, harddisks spinning etc.
One thing which I noticed is that the lights on the keyboard does not flash too, and the led on the monitor is orange. I tried removing / swapping everything that I had replaced and at one point when I had removed the newly placed RAM the display started working.
I then tried putting back the new RAM and checked, it still was working. This seems really strange for me. However I let it run for one whole day, doing restarts in between and turning it off for a while and powering up again etc. and everything seemed fine.
So I shut it down at night and when I tried to power it on the next morning, the same issue occurred, the display is not coming. Did the same processes as mentioned earlier and it worked.
But again after shutting it off at night and trying to boot today morning, the display has went back to not working again.
This is real strange for me and not sure what the problem could be. Would it be the RAM? If yes, then why is it working once its put back in and goes back to not working after a whole day. Is there something that I need to be checking or resetting etc? By the way, my mother board had an integrated video and i have not done any disabling of that video when I installed the new AGP Card. This is just for information purposes, dont know if this has something to do with it. Any feedbacks would be very much appreciated. Thanks in advance.