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Startup problem with Compaq Presario F500

It just keeps rebooting with no screen at all even with an external screen - nothing. I've replaced the ram with one i have tested on another pc that works.I've removed the battery ,reset the bios (removal of cmos battery) ran the system with and without the battery (direct power) all to no avail.I've even removed the hdd to see if that will show a screen to show problems anyway i don't know whats wrong any ideas please? thanks in advance

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  • cccar Sep 05, 2008



    hi it will keep rebooting about every 30 seconds by itself with no screen. Even if i use esc ,del, f10 keys ect makes no difference. The hdd seems to be ok (tested in different pc) It dos'nt seem to getting either to the post or skipping it then rebooting

    thank you

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Hello cccar,

"it just keeps rebooting with no screen at all even with an external screen"

I take it you mean that everytime you reboot you see nothing.....not that when you switch it on the computer reboots?

If it is that it just reboots all the time, it may be that the screen is not getting enough time to show anything. However, there are some viruses that stop the screen from showing too...so to check that put the hard drive in to another machine and run a full virus checker on it.

However, IF it is that the machine does not have a virus, and/or that the machine IS getting enough time to show a screen, then I am afraid it is either that the video cable is not working (the cable that connects the screen to the computer) or that the graphic card (or mother board if you dont have a separate graphic card) is at fault.


Posted on Sep 05, 2008

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1 Answer

My Compaq Presario F500 running Vist Home Basic will no longer boot the operating system after I completed an advise BIOS update from HPs websit. I receive an error code stating that the system is cor


Hi.

Try this >>>>


Power down your Compaq Presario F500 notebook computer. Remove the unit's internal battery from its housing compartment.
Use a screwdriver to unscrew and remove all of the screws from the bottom panel of your Compaq Presario F500. Use your hands to lift off the bottom panel, revealing the inside of the notebook computer.
Look for the CMOS/BIOS chip: It will be located in the center of your computer's motherboard, which is itself located in the center of the case.
Remove the small battery from its housing compartment on the CMOS/BIOS chip. Then, press and hold the "Power" button on the laptop's case for a few seconds. This will completely discharge all electricity from the device.
Replace the CMOS/BIOS' battery. Place the bottom panel of the notebook computer back on and screw it back into place. Place the Compaq Presario F500's battery back into its housing compartment and press the "Power" button to turn it on. Your CMOS/BIOS will now be completely reset.
Good luck and please let me know how you get on!!!!



Regards.

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Fehdi

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