ok after reading over this forum for the last 3 days trying to work out how my hard drive works and what could be the problem, i have come the conclusion that i have killed the pcb boards only and the platter and heads are fine.....
but here is the story anyway
i purchased a 1000w antec TP power supply and i was only using the 3 hard drives (2x500gb and 1x320gb) and it was working fine this was about 3 weeks ago
about 2 weeks ago i decided i wonted to upgrade to windows 7 but to be on the safe side i was going to do some backing up of windows partition on the 320gb hard drive
so i installed an addition 250gb hard drive into my computer and also found i had a 6-pin to 4 sata power cable connector in the power supply box so i thought i might use it as it will open up a slot on my power supply.....
after installing everything and fixing up the cables i turned on my computer but nothing happened i was stumped for a while but then i started pulling stuff out and trying to work out what it was and found if i don't use the 6-pin to 4 sata power cable connector then the computer turns on fine so i put the old 6-pin to 2 sata power cables connector in and the computer turns on but i couldn't get into windows i put my had on the hard drives and they weren't spinning up......
anyway i started looking at the 6-pin to 4 sata power cable connector and noticed the 6-pin line was pined incorrectly and the 12v line was where the ground should be thus reversing the polarity on all 4 drives.....
this is the faulty cable as you can see the yellow and the black are the wrong way around on the 6-pin connector (F@CK YOU ANTEC!!!!)

this is what the connection should look like see how the yellow is on the outside...... and the black is on the inside....

anyway i tried consumer affairs and antec hasn't really replied yet......
hard drive info :
DRIVE 1MDL: WD3200AAKS - 00VYA0
DATE : 15 OCT 2007
DCM: HHNNNTJMHN
PRODUCED IN THAILAND
PWB: 2060 - 701444 -004 REV A
BARCODE: 2061-7014440799 AC
DRIVE 2 & 3 (these drives are identical in every way) MDL: WD5000AAKS - 00TMA0
DATE : 23 MAY 2007
DCM: HBNCHV2CAB
PRODUCED IN THAILAND
PWB: 2060 - 701477 -001 REV A
BARCODE: 2061-701477-800 AC
now i have found this drive on ebay that is very close in description to drive 2&3
http://cgi.ebay.com/ws/eBayISAPI.dll?Vi ... AQ:US:1123the pcb is exactly the same i think...... anyone know if it will work work if i just straight swap
extra info:
i didn't smell anything there where no sounds and there is no burning as fare as i can tell....
my aim is to get my data of these drives and i dont care what happens to the drives in the process of doing this......
thanks in advance