2.26 or 2.4 GHz / White plastic unibody enclosure

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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?

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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.

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It could be that the RAM is not properly seated. Remove and reinsert the RAM by pushing it firmly in. Processor won't just die after a hard drive replacement.


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Recheck if all the parts are properly reconnected. e.g. battery, ram...

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I did all that, but still nothing happens.. :(


Any reason why you replaced the hard drive? Is it for upgrade purpose or is there some other issue on the other parts before the replacement? What is the model # of the new hard drive?


yes, the original one was dead. Suddenly the "?" icon appeared at the start up.. And when I pressed alt at the start up, the hard drive never appeard on the screen.

The original one was a Hitachi 250gb 5400rpm

The new one is a Western Digital 320gb 5400rpm

model# WD3200BPVT - 00HXZT3 (is that one correct?)

Thanks a lot guys!

PD: sorry if my english isnt that good.


If you have an external usb sata enclosure, try to put your new hard drive on it and plug it in on a different laptop and see if it is recognized. If not then you might be having a bad hard drive. If it is recognized on a different laptop then you might be having a bad hard drive cable.


I did it, the original hd is dead, the new one is running correctly. But the laptop's still dead. No matter what hd I put on it.


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Benjamin Davila will be eternally grateful.
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