I am struggling and need to see if I can get my thinking sorted out in general. Since I was visiting Forum for a quick look I have decided to ask a few questions about my problem with a nice Acer 7720G that was bought in Belgium some years ago. Background:
The pc is a "big" laptop with wide screen and has worked well until apparently the Graphics card failed. Fortunately this is a separate card and the good people at MXM-Upgrade in Belgium added a new HD47650 (found the model in email correspondence), a verified replacement in this pc. My daughter brought it back to Australia recently when visiting and as I also have a 7720G-Travelmate bought here in Australia so that I could give some software support.
Functionally almost the two pcs the same but hardware have some interesting differences, one being that I can't obviously swap graphics cards, which was an unexpected problem, physically it will fit but orientation is 90 degrees out and the heatsinking will not fit properly. I have to say I don't think so, it is too different for me to dare a swap.Problem:
Turning power on, the screen is black and if an external monitor is attached this is black too. The optical drive appears to answer the BIOS (had a PCLinuxOS KDE32 inserted of course, but normally it runs Windows 7 ). If the hard drive is installed this will also try to work, or the HDD activity light will flash. After about 30 seconds activity seems to stop, the cooling fan will turn off.
Accidentally I found that after about 20-30 minutes the system will continuously try to read the CD.
During the shole starting attempt, I never get any beeps as one can expect from starting.
Holding down the F2 key then applying power I would have expected to boot into BIOS setup screen as it does on my 7720G-Travelmate but that does not happen.
I removed Battery, RAM and the HDD module and tried to boot, no beeps. These are easy to remove but since the CD seems to work I did not remove this. Also I did not remove WiFi card or Modem as I was all biased to thinking that the Graphics card was faulty.
I put everything back in having decided that the Graphics card must be the culprit and automatically booted again holding down the F2 key, the system sprang into life with beeps. I found it hard to believe. However it was not the BIOS screen, it was the Windows not closed down properly screen with options to start, I selected Start Windows as usual. Everything almost appeared ok, I could login user but the keyboard did not seem to function properly, direction keys and TAB key did not seem to respond.
In a vain hope I thought a re-boot would fix that but I am back at square one, black screen and no beeps. A this stage I think it must have been a fluke.
At this stage I would like to remove the graphics card and try to boot, hoping that I would get the beeps at least, of course I would not get any error codes as the display device is no rendered in operable. Question:
Has anybody any experience removing graphics cards in laptops and try to boot.
Obviously at this stage I had hoped to swap graphics cards between the 7720G-Europe and 7720G-Travelmate but as explained it is not that simple. No winner here.
Ah yes, I have googled a fair amount on "Acer Black screen" but so far not found a solution.