No display c660

1.) Use alternative SMPS
2.) Use alternative motherboard
3.) Unplug HDD, check if BIOS screen is displayed
4.) Check if your input voltage power to the SMPS is sufficient

Check for post message , check display screen in bios try reseating the lcd cable if you can before you buy another LCD dispaly

Any HDD light on / if not could be failed HDD OR faulty IDE / Sata cable.

Did you get posting beep if not remove / replace ram / reboot.

If you did then either mobo / CPU may be faulty.

next to the F1 key and the windows key (2nd upper key and second to last key) are two screws, usually under some covering. unscrew and lift top edge of the keyboard towards the trackpad to lay face down. Undo the wire ribbon by lifting the grey or brown tabs and remove ribbon and keyboard. Then install the new keyboard by inserting the ribbon on the place. Lock down with the tabs and put the plastic prongs (close to the space bar) into the laptop body first, and then close keyboard onto the final position. screw back in and thats all. [email protected] for any additional questions.

First check your num lock led if it on and off when you press num lock key then your cpu is ok.
Then therer is issue with monitor to cpu loose connection
or
Screen resolution problem.
For that when you power up press F8 key then enter in enable vga mode.then go to control panel and dispaly then settings then change screeen resolution to 1024*768 then apply and ok.
Aslo reconnect connection from monitor to cpu vga port.
Also check in bios some times your harddisk is not detected proeprly.
If problem still remains open cpu cabinet and reconnect data cable and power cable to harddisk.
Refix RAM memory.
Pull cmos cell for 15 minutes then check.
Thanks for using fixya.
Pls rate solution if it help you .

check the your RAM, or change your RAM if the same problem and try to chek your CPU processor....,

and also your HDD

thanks

check the display on external monitor, through the vga port of your laptop if the display is there then its the problem of your screen, some times this happen due to non working of the cable that gives display to the screen , its better check it by some technician

remove your video card and plug it again.. if it doesnt work..
try plugging ur video card to *********** board built in video card and then ur on-board video card to you monitor..

this is what the nvidia guys mentioned on their video while announcing the release of the 9 series

after turning on wait for a moment.. about 5 mins. then press fn+f4

press and hold fn and press f11.it sounds like you activated the sticky keys