Lesson 1: Installing Motherboards And Conenctors Flashcards
What 3 ways might a tower case be secured?
- Screws
- Retaining Clips
- Anti-Tamper Security Mechanisms
Acronym: LED
Light-emitting diode
What 3 things does the front panel of a computer provide access to?
- Removable Media Drives
- Power on / off switch
- LED’s Light-emitting Diodes
How might you remove the front cover of a computer chassis?
Might need to remove the side panel first to access the screws or clips that secure it.
What 2 things does the rear panel provide access to?
- PSU Sockets Power supply unit
- Fan Exhaust
What might affect cooling and where would it be found?
An obstructed integral fan exhaust found on the rear panel on the PSU power supply unit..
Where are the peripheral devices connected on a PCU Chassis?
On the rear panel below the PSU where the computers i/o ports are located.
What does the i/o shield do?
Covers the spaces between i/o ports to prevent dust getting into the case.
What is a blanking plate?
A metal strip that covers unused adapter card slots.
What 3 problems can be caused without the i/o cutout or blanking plates?
- Dust entering the case and settling on the components increasing the chance of overheating
- Components exposed to more touching, increasing risks of ESD.
- Components are more exposed to EMI Electromagnetic interference.
Acronym: EMI
Electromagnetic Interference
What is ESD
Static charge on someone’s finger or on a tool is conducted to a computer chip.
What effect does ESD have on computer chips?
It could cause temporary or permanent fault to the computer chip.
What path does the I/O shield use to protect the chip from ESD
- Pins in the I/O shield connect to
- The external metal parts of the ports to the metal case which is in turn
- Bonded to the PSU, chich connects to
- The building’s ground system when plugged in. Which provides a safe path for ESD to drain into instead of arcing to a chip.
What is EMI?
(Not Acronym)
Energy from electrical sources such as motors or other electronic devices such as radios that can cause temporary or permanent faults.
PC cases can absorb EMI but what can reduce this protection?
Gaps in the case and ports.
How are I/O ports connected to the PC?
Peripheral Cables
Acronym: DVI
Digital Visual Interface