MacBook is completely dead.
After a hard drive replacement, the computer turned on, but the led light on it blinked like 5 times and that's all. No screen display, it does not respond to any command i gave. It has the install dvd stuck o it and there is no way i can pull it out..
Also the magsafe adapter has no light.
And suddenly, it died. When I press the power button, nothing happens. It's totally dead.
Can it be the Logic Board?
You have a bad processor:
The power on self-test resides in the ROM of the computer. This test runs whenever the computer is turned on after being fully shut down (the power-on self-test does not run if the computer is only restarted).
If a fault is detected during the test, you will not hear a normal startup chime. Instead, the system will beep as explained below. If you experience one of these beeps, you may call your Apple Authorized Service Provider for additional troubleshooting assistance.
1 beep = no RAM installed
2 beeps = incompatible RAM types
3 beeps = no good banks
4 beeps = no good boot images in the boot ROM (and/or bad sys config block)
5 beeps = processor is not usable
In addition to the beeps, on some computers the power LED will flash a corresponding number of times plus one. The LED will repeat the sequence after approximately a 5-second pause. The tones are only played once.