This Laptop has not given any problem since 2003. Today I left the Laptop on for one hour and when I returned I could not awake it from sleep mode. I shut it down by pressing power button and tried to boot it again. When I press the power button, I can see the CPU fan moving for few seconds and then fan stops, HDD moving sound also heard, Power-on LED, HDD LED and WIFI LED all LED turn continuously ON with green light. Laptop LCD screen does not display any thing. I have tried the following troubleshooting.
1) Removed power cord, and then removed battery, HDD and all USB connected devices.
2) Did hard reset by pressing power button for 30 seconds
3) Tried booting but still no boot.
4) removed ram and tried booting without ram. all symptoms remained same.
5) tried booting with one memory bank alternatively but still problem remained same. I have checked HDD on another laptop and found it OK.
6) Yesterday I had downloaded and installed batterycare application to monitor the battery health. I have some doubt if this software having main exe file as unins000.exe could have messed up the laptop BIOS.
I had also put the speaker off before this problem occurred, therefore I can't hear any beep sound after pressing the power button on.
I had also contacted the nearest HP service center but they refused to look at the problem mentioning that the machine is out of warranty and too old to get parts from HP
.
Kindly help me by suggesting what else I could do to troubleshoot it if it is possible at all.
1) Removed power cord, and then removed battery, HDD and all USB connected devices.
2) Did hard reset by pressing power button for 30 seconds
3) Tried booting but still no boot.
4) removed ram and tried booting without ram. all symptoms remained same.
5) tried booting with one memory bank alternatively but still problem remained same. I have checked HDD on another laptop and found it OK.
6) Yesterday I had downloaded and installed batterycare application to monitor the battery health. I have some doubt if this software having main exe file as unins000.exe could have messed up the laptop BIOS.
I had also put the speaker off before this problem occurred, therefore I can't hear any beep sound after pressing the power button on.
I had also contacted the nearest HP service center but they refused to look at the problem mentioning that the machine is out of warranty and too old to get parts from HP
.
Kindly help me by suggesting what else I could do to troubleshoot it if it is possible at all.