Sytem doesnt boot up

You Have A Master Boot Record Problem, Reinstalling Window's could correct this

If the Monitor is displaying no infomation at all, your display signal from the PC to the monitor has failed.
1: Check the cable between the monitor and PC
2: If you are using onboard graphics then that display port is faulty.
3: If you are using a graphics card then remove it and try the onboard graphics.
4: Your monitor maybe faulty aswell so test it on another computer to be safe.

Its more likely to be option 2

Check your connections to the PC. Make sure that they are nice and secure. If there is a resolution problem setting it should display the boot process and then go blank after starting the operating system.

hi

please check that the settings is okie on the control pannel in display setting for the monitor ,

if it is okie then go to run and in run type msconfig ,once u do this it will give u a system configuration box ,then in the sytem try to do the normal startup for the computer ..

if it still doesnot work then try to run a tool called dial a fix and u can get this is google

this lead to cpu overheating problem
clean your cpu fan and put some thermal grease between the fan and cpu

Roxio Changed Your display settings on the dual display.

Right Click on desktop>goto Prefences>

You should see both monitors indentfy the one and change it to a lower resolution.

Hello sir/madam

Go to Display in control panel, Then go for display settings
Then click identify select display one or two....if it is not detect display ..click detect ..

click windows key+p there it shows multiple monitors ,extended display,duplicate dispaly

It seems to e that your SMPS power supply inside the cabinet having some problem..try to replace it...

If you look at the monitor there will be an led light on the front that is always orange or yellow when the computer is off but still connected to the monitor. This led will turn green when the computer boots up, sometimes even showing a "no signal" display before boot. If you see the 'command line'  text during the boot process (video info, BIOS version, POST text, etc) then the monitor is being recognized by the computer. If that text goes away and the led goes back to orange then it is a driver or operating system problem. Pressing whatever key is prompted at the lower left of the display, if you have a display, like F1, F2, F10, Delete or whatever will get you to the setup program and all is good with the display/computer connection and a green light will stay on. If you never get that green led light then either the video card is bad or not seated properly 

when ur starting the tower and it light are on and ur fan there is no problem with the power supply, i think that u rily need a new motherboard because ur board will not boot on start up..