I have a HP Pavilion dm1 10 which recently stopped working, wasn't dropped or got wet or anything. The only sign of life is that the led next to the power cable lights when the mains cable is plugged into it. Absolutely nothing happens when you press the power button, no fans/hdd noise, no lights or display. I have removed the hdd and it works fine in a usb case, all data is there. Have tried hard reset, and unplugging the bios battery but still nothing. I also tried booting with the ram module removed. Without any kind of feedback I don't know what else to try? I am going to leave it without the battery, bios batter or mains cable plugged in for a few days. Anyone on the forum know if this particular machine will boot or display anything if the ram module is not present? I have not got another machine to test the ram module in.