Kinda this has been an old problem. Earlier used to happen once in a while and wasn't much of a problem. But off late its become frequent and difficult to get rid of.
My PC gets stuck when switched on. Its so irritating, it happens almost every time I switch it on. On some occasions it will boot normally and on other occasions will fail to take of. Sometimes I can see the POST screen and at other times even that won't show up. I can hear the sound of devices beginning to get initialized, but it doesn't complete. SOmetimes the system will remain ON for 1/4 of a second, somtimes 1/2, sometime 2/3 sec before powering itself off. I havent tried reading the post message yet (Quick boot is enabled and POST messages hidden behind OEM logo). Tonight I will unearth it and try to find if there is a common symptom.
First of all I suspected my electricity wiring and checked every point. I replaced all cables inbetween and I am certain that external power supplies are not at fault. Speakers remain ON, even motherboard light remains on. I even tried booting without other devices (disconneted my HDDs, CDROM etc). Only thing I havent tried yet is, removing individual cards (but then i don't really see a point, untill one of you can ask me to giving a justification).
I haven't installed any new hardware. I do use power management at OS level but don't remember tweaking BIOS for the same. Wierd thing is, you try it 10-20 times. Sometimes caress the motherboard cables gently, sometimes bang the mobo turn it off and back on from the mains and it will start working. Wierd, isn't it! Help me, I am stumped.
Thanks for reading teh long story. Hope solution be a short one :">