There are some basic problem of Unreadable Hard Disk. But, it can't be the main focus, because there are so many possibilities of Unreadable Hard Disk. These are example of problems :
1. HDD drive unreadable in BIOS
2. Error installing cables
3. HDD not spinning
4. Error installing Jumper
Let's explore more in each issue
1. HDD drive unreadable in BIOS
2. Error installing cables
Sometimes we didn't notice that there is an error in the HDD cables. It could be because the cord bent, installation errors PIN, bent, or even broken. Whereby it can all cause the HDD unreadable. Because the BIOS will not detect if there is damage to the HDD cable. If it does not happen as I described above, then the best way is to replace the HDD cable.
3. HDD not spinning
There is the possibility of the HDD not spinning because of power shortage or there may be an error in the power supply. Here are some ways to check it:
1. Turn off the computer
2. Unplug and plug again the cable plugged in HDD
3. After the computer restarts, try to listen or hold HDD, whether spinning or not
4. Try swap cables with cable CD-ROOM to just check it out
5. Check the condition of your PSU
6. If it still does not spin, try using another computer to check the good condition of its HDD
7. If perhaps still not spinning HDD or her way, a last resort is a guarantee if still valid
4. Error installing Jumper
May sometimes also occur errors in installation Jumper PIN on the HDD. Especially if you use the HDD more than 1 piece. Sometimes there is a mistake in the installation between MASTER and SLAVE on Jumper PIN.
Here are some pictures of the installation PIN explanation on ATA and SATA HDD
SATA PIN
ATA PIN
My explanation above just the info I dapet and I have tried to fix my damaged HDD. But it is possible there are other issues that may arise in the event of damage to your HDD.I hope it could help you To Fix Unreadable Hard Disk
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