Revision as of 12:44, 5 April 2017

Hardware

Hard Drive

Predictable hard drive failure is usually caused by normal wear on the mechanical parts of the drive.

Unpredictable hard drive failure can be caused by misuse, defective parts, or immediate mechanical failure.

Gradual wear causes most mechanical failures. The most common symptoms of a failing hard drive are:

• Increased heat output
• Increased noise level
• Problems with reading or writing data

S.M.A.R.T. (Self-Monitoring, Analysis and Reporting Technology) scans

SMART scans are a quick way to tell if a hard drive is failing, although not all failing drives fail SMART tests. There is no standard requirement for SMART support, so not all disks will test all or even most of the tests available.

You can test most hard drive formats via Ubuntu's built in SMART scan (in Disk Utility).

Common SMART signs of HDD failure:

• Read error rate
• Reallocated sector counts
• Spin retry count
• Command timeout
• Reallocation event count
• Current pending sector count
• Uncorrectable sectory count
• Drive life protection status

Mac Question mark folder

When a mac boots to the question mark folder this often means that there is a registry error on the drive. Disk Warrior can fix registry issues with our clearing the hard drive. But make sure you back up the users data just to be safe.

Another possible issue could be with the hard drive cable, this is especially prevalent in the A1278 model. To test this take the hard drive out of the laptop and plug it into one of our toasters and plug the toasters into the laptop, boot the laptop holding the option key and see if the hard drive is recognized.

Logic/Motherboard

• Unexplained crashes
• Corrupt graphics
• Display failures
• Power button doesn't always work
• Ports don't always work
• Unexplained noises

Things to try:

• Reset PRAM (Parameter Random Access Memory)
• Reset PMU (Power Management Unit)
• Reseat the RAM

RAM failure

Beeps when trying to powering on

Things to try:

• Reseat the RAM

Software

Many software issues can also be caused by hardware malfunctions.

Common Software issues:

• Long load times
• Long quit times
• Program crashes regularly
• Window not moving

Program lists

• Mac
  • Drive Genus
  • Disk Warrior
  • Data Rescue

• Windows
  • Data Rescue
  • Malwarebytes
  • AVG
  • Ccleaner

The Manuals for most of these are on the desktop of the Admiral and Arrakis

Viruses

• If the user thinks it might be a virus, have them show you what is happening.
• Boot to safemode
  • Win7: restart then keep pressing F8 until a menu comes up, always select safe mode with networking
  • Win8: from the start screen type run, open run, type msconfig, go to Boot tab and check the box for safe mode with networking

• Install Malwarebytes from flash drive and follow the steps here Malwarebytes.

Things to try:

• Malwarebytes
• AVG
• Ccleaner
• SMART Test

How to backup

Ask student what they would liked backed up, try to avoid backing up the entire hard drive. Create a new folder with the naming scheme (Studentname mm_dd_yy). Manually move folders to new folder. We store backups for 1 Month.

Skynet

• Username: Admin Password: the DC 1 policy is n0!
• from Mac: Finder, Go, Connect to server, afp://skynet.local
• from Windows: myComputer address bar, //skynet/Student Backups

Water spill

If a student comes in saying that some type of liquid was spilled on their computer let them know that we will keep it on our drying rack for 24 hours before we do anything to the computer.

• After 24 hours try to back up the hard drive.
• See if it boots normally after the drying time, if not more damage was done than we can fix.