MBP won't boot, black screen, no white LED, clicking hard drive noise

Hey everybody, so the title basically summarizes it all. I connected an IDE HDD to my Macbook Pro through a USB enclosure, which had an AC IN jack, for plugging it into an electrical outlet (which I did) and the moment I connected it to my computer's usb port, the screen suddenly went black. I disconnected the HDD, and tried to turn on my MBP but it was no use. Ever since I have tried again and again to turn it on, but the computer will not boot. I have performed all of the suggested steps by Apple (PRAM reboot, holding down different keys while pressing the "on" button, etc.) but it's been worthless. My hard drive is okay, since i took it out and found out that all of my information and files were there. Still, whenever I try to turn the computer on, a clicking sound can be heard, as if the HD was trying to spin but failed. I have no display whatsoever, and no white LED in the front. I am truly desperate and would appreciate anyone's help big time.
Thanks a lot,
Luis

Thanks for the reply but it isn't a hard drive issue. I have tested the hard drive in an external enclosure and it's working fine. I even put in another hard drive i have and it wont boot that either. I'm thinking its a logic board issue. Any one know best place to get logic board replacement near london for cheap

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Thanks for the reply but it isn't a hard drive issue. I have tested the hard drive in an external enclosure and it's working fine. I even put in another hard drive i have and it wont boot that either. I'm thinking its a logic board issue. Any one know best place to get logic board replacement near london for cheap

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http://eshop.macsales.com/item/Newer%20Technology/CR2032/
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…and I suspect you want some clairvoyant or mind reader to guess all the details and specs of your setup?
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MBP won't boot, black screen, no white LED, clicking hard drive noise

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