Laptop black screen, with power fan working

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Hello all, I am using a dell studio xps 1645 with ati mobility radeon HD5730 inbuilt. Problem i have been facing past few weeks is that my laptop screen is going black and is crashing a few minutes after booting up when i connect to ac power. I did a few diagnostic tests. It is working...

Dear friends, I am having problem with win7 Dual core processor it keep crashing, screen goes black , power stays on. If i boot the system next time on restart screen stays black, but if i press the power button once, i noticed that after a while computer shuts down and on restart it works fine...

I've has thisl issue with a Compaq Presario cq56-115dx black screen at power on,everything else seems to power up, caps light blinks showing what it could be that's not working as noted above on hp's support link however this model of laptop/notebook will not make a beeping sound, never did when...

hello i have asus laptop before 2 dayes when laptop was working properly .then i put it on stand by for aperiod of time abut an hour so when i returned i turned it on it but it operated with ablank screen i tried many times without any result i dissemble ther battery and turned it on directly from...