HARD DRIVES

‘Hard disk CMOS mismatch’ Hard Drive Error

When a computer system starts, its BIOS carries out Power On Self Test to check and ensure if all connected components are working correctly. If BIOS finds any issues, it returns some error messages to inform users. This only happens if BIOS can boot the system to an extent that it can access video subsystem. Some hard disk specific error messages show that it has got physically failed. It requires Data Recovery service as the solution. One of such error messages is:

“Hard disk CMOS mismatch”

Cause

Possible reasons of this error message can be:

• Changed hard disk settings in BIOS

• Hard disk failure, most likely due to disk controller issues

In some systems’ BIOS, whole amount of memory is stored as a setting. When POST is run, this value is compared with that of connected hard disk memory. Upon finding any mismatch in these amounts, an error, similar to above, is generated. It also generates if hard disk controller fails.

The same issue is also found with ard disks, which are booted first time after adding or subtracting memory.

Solution

• If BIOS settings is the issue, we need to correct it using autodetection procedure

• If hard disk is failed, users are advised to consult hard drive recovery software service programs to recover data and then replace the failed hard drive.

Data Recovery service is the specific help, provided by different companies to extract data from physically failed hard drives. It includes expert hard disk diagnosis and application of careful and advanced technical procedures to extract lost information.

Hard disk internals are quite sensitive to dust like particles and so they are opened in Clean Rooms surroundings.

• A Clean Room is a place with highly sophisticated filters that prevent the entry of dust particles. These are also used in aerospace and chemical like industries, where procedures require prohibition of dust articles.

After determining the cause of failure, hard drive recovery experts follow up a suitable plan of recovery. If this has been a disk controller crash, damaged head is repaired, if possible, or replaced with compatible one.

Stellar Information Systems Limited offers industry’s best and safe Data Recovery service for all models and interfaces (SATA, PATA and SCSI) of hard drives. It is offered through Class 100 Clean Rooms. Stellar’s experts have in-depth knowledge about disk internals, their failure causes and symptoms and recovery procedures. Stellar is known as the leading company in this field.

About the Author

Simpson Raid is a freelancer for Stellar which offers data recovery software and file recovery programs for different OS and file system.

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