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#1
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hard drive repair
Hi,
I'm trying to repair my crashed 200Gb Western Digital hard disk (WD2000JB). A few days ago it started making a strange buzzing noise, then about 10 minutes later died completely. Naturally, I had forgotten to backup the contents of the drive (lesson learned). I tried a few hard drive recovery services but they were all quoting about $2500 for recovery of a hard disk with a mechanical fault - a bit steep for me. Ok, so I figured I may as well have a go myself - nothing to lose. I setup up a 'clean room' in my bathroom (cleaned it out, used an ion generator and the hot steam from the shower to temporarily settle the dust down). I know its nothing compared to a professional one, but it's the best I can do. I opened the hard drive for about 30 seconds, enough to determine that the platters couldn't be moved around by hand. I opened another similar hard drive (with no data on it) and was able to move the platters easily, so I'm assuming there must be something wrong with the bearings in the hard disk. I've managed to get hold of another (almost) identical motor/bearing assembly, and I'm going to have a go at swapping them over. My problem is that my hard drive has 2 platters inside it (basically like 2 CDs stacked on top of each other with a 1cm gap between them), but I don't know if I need to ensure that they stay perfectly aligned when I moved them to the new spindle or not (imagine rotating the top cd around a vertical axis by 10 degrees - the data would no longer be sychronised between the 2 platters). There are no marks or holes to tell the orientation of the platters, so it would be very hard to take them both off one spindle, and put them on to the new one and preserve this relationship exactly. Does anyone know if I need to do this, or have any other advise? Thanks, Ben |
#2
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Ben Galvin wrote
I'm trying to repair my crashed 200Gb Western Digital hard disk (WD2000JB). A few days ago it started making a strange buzzing noise, then about 10 minutes later died completely. Naturally, I had forgotten to backup the contents of the drive (lesson learned). I tried a few hard drive recovery services but they were all quoting about $2500 for recovery of a hard disk with a mechanical fault - a bit steep for me. Ok, so I figured I may as well have a go myself - nothing to lose. I setup up a 'clean room' in my bathroom (cleaned it out, used an ion generator and the hot steam from the shower to temporarily settle the dust down). I know its nothing compared to a professional one, but it's the best I can do. I opened the hard drive for about 30 seconds, enough to determine that the platters couldn't be moved around by hand. I opened another similar hard drive (with no data on it) and was able to move the platters easily, so I'm assuming there must be something wrong with the bearings in the hard disk. Its very unusual for a modern hard drive to fail by bearing failure. Hope you have only been touching the edge. I've managed to get hold of another (almost) identical motor/bearing assembly, and I'm going to have a go at swapping them over. Your chances of success are very minimal indeed. My problem is that my hard drive has 2 platters inside it (basically like 2 CDs stacked on top of each other with a 1cm gap between them), but I don't know if I need to ensure that they stay perfectly aligned when I moved them to the new spindle or not Yes you do. And that is very difficult to do. (imagine rotating the top cd around a vertical axis by 10 degrees - the data would no longer be sychronised between the 2 platters). That doesnt matter in the sense that the two platters need to have the same point on their circumferences perfectly aligned, essentially because when reading a writing the system checks to see when the sector its looking for has passed under the heads. The bigger problem is to ensure that the tracks stay centered when you move the platters from one axel to another. There are no marks or holes to tell the orientation of the platters, so it would be very hard to take them both off one spindle, and put them on to the new one and preserve this relationship exactly. Yes, but that isnt necessary. Does anyone know if I need to do this, No you dont. or have any other advise? It may be possible to take the entire stack of axle and platters out of the alleged bad bearing into the other. |
#3
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I am amazed in courageous people :-)
In first, WD hard drives has many incompatible type of electronical boards and blocks of magnetic heads... in one same model!!! In other words, model WD2000JB can have various type of magnetic heads... So without special knowledge is unreal to find a suitable disk with the same type of magnetic heads!!! Probably I can help you if you opened it no more than 30 seconds... What behaviour of a disk now? Do you hear work of the engine?? ? Your drive makes any hellish noises? Sorry for my english, I just studing it Andrej HDD Rescue Party http://www.trackway.net/hdd/ Data Recovery & Hard Drive Repair services in Bishkek Ben Galvin =D0=BF=D0=B8=D1=81=D0=B0=D0=BB(=D0=B0): Hi, I'm trying to repair my crashed 200Gb Western Digital hard disk (WD2000JB= )=2E A few days ago it started making a strange buzzing noise, then about 10 minutes later died completely. Naturally, I had forgotten to backup the contents of the drive (lesson learned). I tried a few hard drive recovery services but they were all quoting about $2500 for recovery of a hard disk with a mechanical fault - a bit steep for me. Ok, so I figured I may as well have a go myself - nothing to lose. I setup up a 'clean room' in my bathroom (cleaned it out, used an ion generator a= nd the hot steam from the shower to temporarily settle the dust down). I know its nothing compared to a professional one, but it's the best I can do. I opened the hard drive for about 30 seconds, enough to determine that the platters couldn't be moved around by hand. I opened another similar hard drive (with no data on it) and was able to move the platters easily, so I= 'm assuming there must be something wrong with the bearings in the hard disk. I've managed to get hold of another (almost) identical motor/bearing assembly, and I'm going to have a go at swapping them over. My problem is that my hard drive has 2 platters inside it (basically like= 2 CDs stacked on top of each other with a 1cm gap between them), but I don't know if I need to ensure that they stay perfectly aligned when I moved th= em to the new spindle or not (imagine rotating the top cd around a vertical axis by 10 degrees - the data would no longer be sychronised between the 2 platters). There are no marks or holes to tell the orientation of the platters, so it would be very hard to take them both off one spindle, and put them on to the new one and preserve this relationship exactly. Does anyone know if I need to do this, or have any other advise? =20 Thanks, =20 Ben |
#4
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Hi Andrej,
I'm hoping that I can keep the heads, circuit boards, etc... and just replace the motor (the motor, bearings and spindle are all one part). I've got the motor from a 160Gb Western digital which looks pretty much the same. At the moment when you plug the hard disk into a power supply, it buzzes for half a second, is silent for half a second, buzzes again, is silent again, etc.. and repeats this for about 60 seconds, then goes silent. I've checked the resistance etc... of all the coils on the motor and it seems fine. I've also tried putting the controller circuit board onto another hard disk and it worked fine, so it seems likely that it is a mechanical problem with the motor, bearings or spindle. The plan at the moment is to open the hard disk again, slide the armature off the platters, remove the screws from the top of the spindle, remove the platters, unscrew the motor, replace it, then put everything back. Is this reasonable? Is resting a platter on a piece of cloth enough to damage it? Will sliding the armature on and off the platters damage it? Thanks for your help, Ben "Andrej" wrote in message oups.com... I am amazed in courageous people :-) In first, WD hard drives has many incompatible type of electronical boards and blocks of magnetic heads... in one same model!!! In other words, model WD2000JB can have various type of magnetic heads... So without special knowledge is unreal to find a suitable disk with the same type of magnetic heads!!! Probably I can help you if you opened it no more than 30 seconds... What behaviour of a disk now? Do you hear work of the engine?? ? Your drive makes any hellish noises? Sorry for my english, I just studing it Andrej HDD Rescue Party http://www.trackway.net/hdd/ Data Recovery & Hard Drive Repair services in Bishkek Ben Galvin ?????(?): Hi, I'm trying to repair my crashed 200Gb Western Digital hard disk (WD2000JB). A few days ago it started making a strange buzzing noise, then about 10 minutes later died completely. Naturally, I had forgotten to backup the contents of the drive (lesson learned). I tried a few hard drive recovery services but they were all quoting about $2500 for recovery of a hard disk with a mechanical fault - a bit steep for me. Ok, so I figured I may as well have a go myself - nothing to lose. I setup up a 'clean room' in my bathroom (cleaned it out, used an ion generator and the hot steam from the shower to temporarily settle the dust down). I know its nothing compared to a professional one, but it's the best I can do. I opened the hard drive for about 30 seconds, enough to determine that the platters couldn't be moved around by hand. I opened another similar hard drive (with no data on it) and was able to move the platters easily, so I'm assuming there must be something wrong with the bearings in the hard disk. I've managed to get hold of another (almost) identical motor/bearing assembly, and I'm going to have a go at swapping them over. My problem is that my hard drive has 2 platters inside it (basically like 2 CDs stacked on top of each other with a 1cm gap between them), but I don't know if I need to ensure that they stay perfectly aligned when I moved them to the new spindle or not (imagine rotating the top cd around a vertical axis by 10 degrees - the data would no longer be sychronised between the 2 platters). There are no marks or holes to tell the orientation of the platters, so it would be very hard to take them both off one spindle, and put them on to the new one and preserve this relationship exactly. Does anyone know if I need to do this, or have any other advise? Thanks, Ben |
#5
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On Sun, 14 Aug 2005 11:18:15 +0800, "Ben Galvin" wrote:
Does anyone know if I need to do this, or have any other advise? You need a prayer if you are going to swap hard drive gut to salvage data. They are quite senstive and static discharge (even those you never notice) will wipe portion of the disk platter. -- When you hear the toilet flush, and hear the words "uh oh", it's already too late. - by anonymous Mother in Austin, TX To reply, replace digi.mon with phreaker.net |
#6
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Yes, this sounds is bad. In any case you opened a cover already. Do you
tried to rotate a disk? It rotates without resistance? Please! Do not touch disks, and rotate in the middle! Where heads are located? On a path inside of a disk(closer to the center), or they somewhere on a disk? In general, it is rather rare case, when a problem with the engine. Quite possibly, magnetic heads is adhere to a disk... It happens more often... Yes, you can eat it, but later you will die... same here - you can change the engine or rearrange disks but it will not work. |
#7
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Yes, I did try to rotate the disk (on the edge), and it wouldn't move at
all. The head is able to move and is currently in the landing zone near the center of the disk. Can't think what would cause it to stop moving other than a problem with the bearing. Why do you say it won't work if I change the engine or move the platters? Is it too hard to put things back exactly how they were? "Andrej" wrote in message ups.com... Yes, this sounds is bad. In any case you opened a cover already. Do you tried to rotate a disk? It rotates without resistance? Please! Do not touch disks, and rotate in the middle! Where heads are located? On a path inside of a disk(closer to the center), or they somewhere on a disk? In general, it is rather rare case, when a problem with the engine. Quite possibly, magnetic heads is adhere to a disk... It happens more often... Yes, you can eat it, but later you will die... same here - you can change the engine or rearrange disks but it will not work. |
#8
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If it will work, you are welcome to our business ))
On your place if I really had the important data, I would search for the company with the smaller prices... I could offer you my services, but I am not confident, that it is my case... |
#9
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On Sun, 14 Aug 2005 21:06:25 +0800, "Ben" wrote:
Yes, I did try to rotate the disk (on the edge), With your fingers ? and it wouldn't move at all. The head is able to move and is currently in the landing zone near the center of the disk. Did you moved them a lot on the surface of the platter ? Why do you say it won't work if I change the engine or move the platters? Is it too hard to put things back exactly how they were? It is very hard, and if you answered yes to one of my previous question you can forget about data recovery. Nick |
#10
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Ben wrote
I'm hoping that I can keep the heads, circuit boards, etc... and just replace the motor (the motor, bearings and spindle are all one part). No they arent, what rotates must be seperatable from what doesnt. I've got the motor from a 160Gb Western digital which looks pretty much the same. You should be able to check if they are the same pretty easily. At the moment when you plug the hard disk into a power supply, it buzzes for half a second, is silent for half a second, buzzes again, is silent again, etc.. and repeats this for about 60 seconds, then goes silent. I've checked the resistance etc... of all the coils on the motor and it seems fine. I've also tried putting the controller circuit board onto another hard disk and it worked fine, so it seems likely that it is a mechanical problem with the motor, bearings or spindle. Yes. The plan at the moment is to open the hard disk again, slide the armature off the platters, remove the screws from the top of the spindle, remove the platters, unscrew the motor, replace it, then put everything back. Is this reasonable? I doubt you'll get the platters back on the new shaft accurately enough for the heads to be able to track the cylinders properly once it spins up. They're almost certain to be eccentric. They're written to the platters once the assembly is in place and you cant do that and keep the data. Is resting a platter on a piece of cloth enough to damage it? Really depends on what it picks up. Safer to stand it on edge. Will sliding the armature on and off the platters damage it? Shouldnt do. "Andrej" wrote in message oups.com... I am amazed in courageous people :-) In first, WD hard drives has many incompatible type of electronical boards and blocks of magnetic heads... in one same model!!! In other words, model WD2000JB can have various type of magnetic heads... So without special knowledge is unreal to find a suitable disk with the same type of magnetic heads!!! Probably I can help you if you opened it no more than 30 seconds... What behaviour of a disk now? Do you hear work of the engine?? ? Your drive makes any hellish noises? Sorry for my english, I just studing it Andrej HDD Rescue Party http://www.trackway.net/hdd/ Data Recovery & Hard Drive Repair services in Bishkek Ben Galvin ?????(?): Hi, I'm trying to repair my crashed 200Gb Western Digital hard disk (WD2000JB). A few days ago it started making a strange buzzing noise, then about 10 minutes later died completely. Naturally, I had forgotten to backup the contents of the drive (lesson learned). I tried a few hard drive recovery services but they were all quoting about $2500 for recovery of a hard disk with a mechanical fault - a bit steep for me. Ok, so I figured I may as well have a go myself - nothing to lose. I setup up a 'clean room' in my bathroom (cleaned it out, used an ion generator and the hot steam from the shower to temporarily settle the dust down). I know its nothing compared to a professional one, but it's the best I can do. I opened the hard drive for about 30 seconds, enough to determine that the platters couldn't be moved around by hand. I opened another similar hard drive (with no data on it) and was able to move the platters easily, so I'm assuming there must be something wrong with the bearings in the hard disk. I've managed to get hold of another (almost) identical motor/bearing assembly, and I'm going to have a go at swapping them over. My problem is that my hard drive has 2 platters inside it (basically like 2 CDs stacked on top of each other with a 1cm gap between them), but I don't know if I need to ensure that they stay perfectly aligned when I moved them to the new spindle or not (imagine rotating the top cd around a vertical axis by 10 degrees - the data would no longer be sychronised between the 2 platters). There are no marks or holes to tell the orientation of the platters, so it would be very hard to take them both off one spindle, and put them on to the new one and preserve this relationship exactly. Does anyone know if I need to do this, or have any other advise? Thanks, Ben |
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