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Family Room > Genius > Flashcards

Genius Flashcards

1
Q

SMC

A

System Management Control:

Low level management (communication) subsystem in intel-based Macintosh system.

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2
Q

Resetting SMC

A
  1. Removable batteries:
    remove battery + hold power button 5 seconds
  2. Batteries you should not remove:
    Shift + Control + Option
  3. iMac, Mac Pro, Mac Mini:
    Shut down + unplug + wait 15 secs + attach + wait 5 secs + power up
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3
Q

Shortcut: Force Quit

A

Command + Option + Escape

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4
Q

Symptoms of SMC Resets

A

Fans, Power, Lights, Power, System Performance, Video

Thermal management, sudden motion sensors, ambient light sensing, keyboard backlighting

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5
Q

NVRAM and PRAM

A

Your Mac stores certain settings in a special memory area even if it is turned off. On Intel-based Macs, this is stored in memory known as NVRAM; on PowerPC-based Macs, this is stored in memory known as PRAM.

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6
Q

What’s stored in NVRAM / PRAM?

A
  1. Speaker volume
  2. Screen resolution
  3. Startup disk selection
  4. Recent kernel panic information
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7
Q

Resetting NVRAM / PRAM

A
  1. Shut down
  2. Reboot
  3. Command + option + P + R
  4. Hold down until you hear the startup sound for the second time
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8
Q

POST

A

Power On Self Test.

Error codes determines if RAM is physically damaged, incorrect, or not installed.

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9
Q

POST: Error Codes

A
  1. Detects No RAM or not within specs:
    Screen will remain black but the power LED on the front of the computer will blink once per second to signal the error.
  2. RAM passes POST but still cannot be used by OS.
    Displays gray screen, sound three tones and blink the power LED on the front three times, pause, and repeat the blinking until the computer turns off.
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10
Q

Startup Tones:

1 tone, a 5-second pause, repeat

A

No RAM installed

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11
Q

Startup Tones:

3 successive tones, a 5-second pause, 3 successive tones

A

RAM does not pass data integrity check

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12
Q

Startup Tones:

1 long tone when holding down the power button

A

Firmware upgrade in process.

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13
Q

Startup Tones:

3 long tones, 3 short tones, 3 long tones

A

Firmware restoration from CD in process.

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14
Q

Startup Sequence:

1. Power On

A

Event:

Boot-ROM/RAM check initialized

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15
Q

Startup Sequence:

2. BootROM-POST

A
  • Black screen, power LED on - POST or BootROM failure
  • Flashing power LED once per second - bad RAM, no RAM
  • Three flashes, a pause, and three more flashes (occurs continuously) - marginal RAM
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16
Q

Startup Sequence:

3. BootROM-EFI

A

Boot Chime

17
Q

Startup Sequence:

4. Boot EFI

A
  • Metallic Apple
  • Circle with Slash - could not load boot.efi, or some other issue
  • Flashing globe - looking for booster/kernel on network server
  • Broken Folder that blinks - no bootable device has been found
18
Q

Startup Sequence:

5. Kernel

A

Grey screen with Metallic Apple and spinning gear

19
Q

Startup Sequence:

6. launchd

A

Blue screen

20
Q

Startup Sequence:

7. loginwindow

A

Login window appears

21
Q

Status Sequence:

8. User Environment Setup

A

The text “Logging in…” appears in login window along with a progress bar. Upon successful login, the Desktop and Dock appear.

22
Q

Mac OS X: Firmware

A

The name given to software that is written into memory circuits such as flash memory, that will hold the software code indefinitely, even when power is removed from the hardware.

23
Q

Troubleshooting

A

To isolate the source of a problem and fix it.

24
Q

Template-Matching

A

Troubleshooting method that draws a conclusion based Ailey on past experiences.

25
Q

Evaluate

A

Systematic determination of merit, worth, and significance of something or someone to something using criteria against a set of standards.

26
Q

Isolate

A

To select from among others; especially: to separate from another so as to obtain pure or free state.

27
Q

Resolve

A

To reduce by analysis

28
Q

Open-ended questions

A

Questions that will solicit additional information from the inquirer

29
Q

Closed ended questions

A

Questions which can be answered by either “yes” or “no.”

30
Q

MRI

A

Mac Resource Inspector: provides a fast check of internal and external hardware in intel-based computer systems.

31
Q

DG

A

Diagnostic Gateway: consists of a software package that runs on a dedicated intel- based Mac using Mac OS X server 10.5 (leopard) or 10.6 (snow leopard) and serves up tools to triage computers via NetBoot, recording test results as log files.

32
Q

What do you need to successfully POST?

A

RAM, Speaker, Power Supply, Logic Board

33
Q

What is needed for Data Migration?

A
  1. Start up properly
  2. Be virus free
  3. Have a working Ethernet port or Wi-Fi connection (PC)
  4. Have a working Ethernet, FireWire, Thunderbolt, Wi-Fi connection, or USB port (Mac)

Family Room (4 decks)

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