Free Diagnosis
To Use MjM:
1. FREE Diagnosis
2. No Data Recovery, No Fee.
All data recovery work undertaken by MjM is under a free diagnosis and a no recovery no-fee policy. If it is not possible to recover your data, then there is no fee for you to pay. If you need market leading data recovery services please telephone us now on
Serviced UK Areas
We have recovered data for
customers from all over the UK,
including the towns and cities
below, but please note that our
Data Recovery Labs are
based in Letchworth, Herts
and all media will need to
be delivered there.
| Ashford | Leicestershire |
| Basildon | Lincoln |
| Bath | Lincolnshire |
| Bedford | Liverpool |
| Bedfordshire | London |
| Belfast | Luton |
| Berkshire | Maidstone |
| Birmingham | Manchester |
| Blackburn | Merseyside |
| Blackpool | Middlesbrough |
| Bolton | Milton Keynes |
| Bournemouth | Newcastle-upon- Tyne |
| Bradford | Norfolk |
| Brighton | Northampton |
| Bristol | Northamptonshire |
| Buckingham | Northumberland |
| Buckinghamshire | Norwich |
| Cambridge | Nottingham |
| Cambridgeshire | Nottinghamshire |
| Cardiff | Oldham |
| Chelmsford | Oxbridge |
| Cheshire | Oxford |
| Chester | Oxfordshire |
| Colchester | Peterborough |
| Cornwall | Plymouth |
| Coventry | Poole |
| Cumbria | Portsmouth |
| Derby | Preston |
| Derbyshire | Reading |
| Devon | Rotherham |
| Doncaster | Rutland |
| Dover | Scarborough |
| Dudley | Sheffield |
| Durham | Shropshire |
| East Sussex | Somerset |
| Edinburgh | Southampton |
| Essex | Stafford |
| Glasgow | Staffordshire |
| Gloucester | Stoke |
| Gloucestershire | Stoke-on-Trent |
| Greater Manchester | Stratford-upon -Avon |
| Guildford | Suffolk |
| Hampshire | Sunderland |
| Harrogate | Surrey |
| Herefordshire | Sussex |
| Hertford | Tyne-and-Wear |
| Hertfordshire | Warwickshire |
| Huddersfield | West Midlands |
| Hull | Wiltshire |
| Ipswich | Winchester |
| Isle-of-Wight | Windsor |
| Kingston upon Hull | Wolverhampton |
| Lancashire | Worcestershire |
| Leeds | York |
| Leicester | Yorkshire |
| Hard Disk Motor |
Hard Disk Motor< Prev (Head Stack assembly) Next (Electronics Board) >
Modern hard disk manufacturers no longer use standard ball-bearing assemblies on their motors, and choose to use a magnetic lubricant instead. This type of bearing is known more commonly as a Fluid Dynamic Bearings (FDB). Because the lubricant is magnetic, they have much greater wear resistance because the lubricant is in contact with all moving parts and also run considerably quieter than the older drives. |
Most motors use a feedback-circuit so the controller 'knows' when the drive is running at the correct speed before moving the heads over the data area on the platters. One-way of achieving this is for the drive to send a 'sync signal' or pulse each time the motor completes a single revolution. This pulse is received by the electronics on the controller card and the rotational speed is calculated according to the time between pulses. Once the speed is within the specified range, then continuous speed is upheld by precise adjustments to the voltage sent to the motor.Testimonials
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We have used MJM Data Recovery for several years, they have always provided a quick and efficient service, with great customer support. Highly Recommended.
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