Posted 01 January 2011 - 06:22 PM
I have a similar issue. The computer details are as follows: PC: HP Pavillion m9000, MB MCP61PM-HM manufactured by ECS. OS: Vista.
The computer would intermittently turn on to the blue hp invent screen, but the keyboard and mouse would not work - or they too would intermittently work.
Now when I go to turn the computer on, it powers on but no screen - and it doesn't sound like it is reading the hard drives or anything. I can open and close the optical drive. But still when i go to connect the usb keyboard no lights come on as if they are working as they normally would.
After about 1.5 minutes from when I power it on there are these constant long beeps about 13 seconds in length, and around 10 seconds in between beeps. I stopped counting and shut it off after 18 beeps - I had a look for beep codes, but nothing I saw was ever 18 long beeps.
The power supply LED is on at the back, and all the fans are spinning inside the case.
Not sure what's wrong. Anyone have any ideas or that could possible share their knowledge on such an issue?