Install and Configure Power Supplies and Cooling Flashcards
3.4 Given a scenario, install and configure motherboards, central processing units (CPUs), and add-on cards. 3.5 Given a scenario, install or replace the appropriate power supply.
A wire providing current at a particular voltage.
Rail
The motherboard’s power port
P1 connector
Wires with black insulation
Ground
Wires with yellow insulation
+12 V
Wires with red insulation
+5 V
Wires with orange insulation
+3.3 V
has power connector cables that are detachable from the unit
modular PSU
A computer system may be fitted with two PSUs, with one acting as a failover
Redundant power supply
Allows a faulty unit to be removed and replaced without having to open the case and without the server ever losing power
Hot-swapping
type of cooling that does not require extra energy (electricity) to work
Passive cooling
Refers to a system of pumping water around the chassis. Water is a more effective coolant than air convection, and a good pump can run more quietly than numerous fans
liquid-based cooling system
cooling system that installs to a single component (CPU or GPU) only
closed-loop systems
Type of cooling system that will usually need draining, cleaning, and refilling periodically. It is also important to keep the fans and radiators dust-free. The system should also be drained prior to moving the PC to a different location.
Open-loop cooling system
Your company has recently closed a foreign branch office, and you are
repurposing some PCs that were shipped from the old location. What
feature of the PSUs must you check before powering the systems on?
voltage selector
One of the PCs has a faulty CPU, and one has a faulty power supply. You can use the CPU from one machine in the other. You have opened the case and taken antistatic precautions. What steps must you perform to access the CPU?
- remove the fan and heat-sink assembly
- disconnect the fan’s power connector
- release the pins or screws that attach the assembly to the motherboard
- remove the assembly
