Cables usually don't do what you note and a 40GB drive must be over 5 or more years old.
Bob
ok so here's my issue. I have just your basic setup for a computer..
p4 2.4ghz
1gig ddr ram
dvd/cd burner
nvideo geforce
and a 40gig WD HD with Windows XP Pro SP2
ok so from time to time i can hear my HD working everything is working fine, it starts up i can start to play game, listen to music, or what ever well about after 20-30mins of using it I hear slow WAY down or to a complete stop and the computer then freeze's and shuts down sometimes it will restart. When it restarts it says NO OPERATING SYSTEM FOUND! ok so then I would think it would be the hard drive ... take a good HD out of another computer and put it in it starts up works then dies, i put my HD in the other comp works just fines then shuts down. A temp solution i have found that works is that i can unplug the ide cable from the back of the HD for 2-5 mins plug it back in and it works well at least i can boot up to windows and login and everything then, but its been happening more frequently. Any ideas?

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic