[B]Here's the problem.[/B] It's an HP ze 4904US running windows XP. Worked fine, then went to start one day and screen wouldn't come on. Having had this problem with my ze1000 series, I thought it could be screen bulb or inverter. But it isn't. [LIST] [*]* When I turn it on, I see the blue light all the way to the left on as well as the orange light by the battery symbol to the right. [*]* I don't hear beeps. [*]* I do hear the cd rom spin if a cd is loaded. [*]* I do hear the fan for just a second occasionally. Not every time. [*]* The screen is black and no faint xp logo or anything. [*]* I feel like maybe it's not booting all the way. [*]* If I press caps lock or num lock, the accent light doesnt come one. (maybe bad keyboard) [/LIST] [B] Here's what I've tested so far: [/B] [LIST] [*]* used reset button [*]* removed battery and ac adapter and held power button 1 min. [*]* One by one removed hardware to narrow problem [*]* Re-seated everything and made sure connections were good [*]* tried 2 other known working ac adapters. [*]* hooked up to my PC monitor and still nothing. Monitor doesn't noticed anything attached. (why I believe it's not screen and just isnt booting.) [/LIST] If it ends up being the motherboard, I do have a motherboard that works in my ze1000 laptop, but I don't know if it is compatible.
