Due to hard disk failure, I just replace my Thinkpad T42`s hard disk (40GB) with my T23 hard disk(120GB) which was recently upgraded and working perfectly fine . But T42 not recognize the new hard disk. When I took out and install back to T23 its working great.. Old HD and new HD has same size, same rpm only difference is capacity .So what would be the problem any idea?
Thanks in advance
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First - re-seat the harddisk and reboot the computer. If the computer does not boot up then reboot andgo into the BIOS configuration to see if the BIOS detects the hard drive. If itdoesn't detect the hard drive then it could be faulty.Then the hard drive needsto be replaced in the computer/laptop, Windows installed and the computer orlaptop's device drivers plus your programs etc. to get a functioningcomputer/laptop again.
If your laptop appears to boot up and the hard disk LEDflashes, then the problem is probably a back light fault. This can be a faultyinverter or a faulty CCFL lamp. Please click on this link and follow myinstructions to identify the fault and possible fix :-
1. Remove the hard disk (Turn off computer first) 2. Back up the hard disk using a hard disk back up device such as the one sold here 3. Purchase a new IBM hard disk and copy the data from the old one onto the new one 4. Insert new one into laptop and turn on laptop 5. Done!
POWER OPTION control panel---->power options--->change plan setting---> Turn off the display-never Put the computer to sleep-never control panel---->power options--->change plan setting--->advanced power setting -set hard disk "turn off hard disk after" to never -set Sleep "Sleep after" to never -set hybrid sleep setting to off -set hibernate after setting to never Restart pc POWER OPTION control panel---->power options--->change plan setting---> Turn off the display-never Put the computer to sleep-never control panel---->power options--->change plan setting--->advanced power setting -set hard disk "turn off hard disk after" to never -set Sleep "Sleep after" to never -set hybrid sleep setting to off -set hibernate after setting to never -set display to never Restart pc
one thing u should know first is that you cannot open the hard disk in another system if it is not the same system, because of the drivers and chip set. so to confirm this, u must test it from a system that is the same with yours.
Some BIOS allows for a hard drive diags. try it to test the hard drive, if ther is no such utility you need to test the hard drive anoter way.
Basically either the hard disk controller has failed or the hard drive is faulty. In most cases the hard drive is dead.
To check if the hard drive is OK, remove the hard drive and attach it to a USB hard drive adapter then plug it into a working computer's USB port. If the computer sees it as an external drive and you can view the contents of the external drive then the hard drive is OK.