1.1 Given a scenario, install & configure laptop hardware & components Flashcards
What do universal AC adapters operate at?
(AC adapters with auto-switching)
110-240 VAC at frequencies of 50/60Hz
Not all AC adapters are universal
VAC: Voltage of Alternating Current.
Hz: Frequency of Alternating Current.
What happens if you plug a 220-240V adapter into a 110-120V supply?
adapter = the brick itself (charger)
supply = power source which the adapter draws power (i.e. wall outlet)
Laptop wont work
What happens if you plug a 110-120V adapter into a 220-240V supply?
adapter = the brick itself (charger)
supply = power source which the adapter draws power (i.e. wall outlet)
Laptop wont work and adapter may be damaged
What kind of batteries do laptops use?
Lithium ion batters
What cell versions are Li-ion batteries typically available in?
6-, 9-, or 12-cell versions
More cells provide for a longer charge
What do power management drivers in laptops do?
Optimize charging to prevent battery damage from excessive trickle charging
When is Li-ion battery life affected?
By being fully drained & being held continually at 100% charge
What are Li-ion batteries sensitive to?
Heat
What should you do when storing a Li-ion battery?
Reduce charge to 40% & store at below 20°C (68°F)
How long are Li-ion batteries usable for?
Before needing to be replaced
2-3 years
3 memory module form factors used by laptops?
- SODIMM
- Mini-DIMM
- Micro-DIMM
Mini-DIMM & Micro-DIMM are used on some ultraportable laptop models.
Do DIMM/SODIMM slots accept any type of DDR?
i.e. Can you install a DDR4 SODIMM in a DDR3 slot?
No
The slots are keyed to prevent incompatible modules from being installed
Meaning of SODIMM?
Small Outline DIMM
What memory module form factor is main used for laptops?
SODIMM
3 types of form factors adapter cards use?
i.e. adapters for modems, wireless cards, & SSD storage
- Mini-PCIe
- mSATA
- M.2