lesson 3 system power core hardware fundamentals
Post on 27-Dec-2015
231 Views
Preview:
TRANSCRIPT
Objectives
Describe the function of a power supply.
Measure power supply voltages and compare the results to expected voltages.
Identify when the use of an Uninterruptible Power Supply (UPS) would be appropriate.
Identify potential high-voltage hazard areas.
Describe methods for reducing the potential risk from electrostatic discharge (ESD).
Objectives
Describe the power on self test (POST) process.
Describe the role of the operating system in system startup.
Measuring AC Voltages
0 VACNeutral (larger) vertical slot and ground
Neutral to Ground
110 – 120 VACHot (smaller) vertical slot and ground
Hot to Ground
110 – 120 VACHot (smaller) vertical slot and neutral (larger) slot
Hot to Neutral
Expected ReadingLead PlacementTest
AT Motherboard Connectors
BlackGroundP8-6
BlackGroundP8-5
Blue-12P8-4
Yellow+12P8-3
Red+5P8-2
Orange+5P8-1
Standard Color
VoltagePin
Red+5P9-6
Red+5P9-5
Red+5P9-4
White-5P9-3
BlackGroundP9-2
BlackGroundP9-1
Standard Color
VoltagePin
ATX Motherboard Connectors
Yellow+ 1210
Purple+ 59
Gray+ 58
BlackGround7
Red+ 56
BlackGround5
Red+ 5 4
BlackGround3
Orange+ 3.32
Orange+ 3.31
Standard ColorVoltagePin
Red+ 520
Red+ 519
White- 518
BlackGround17
BlackGround16
BlackGround15
GreenPS_On14
BlackGround13
Blue- 1212
Orange+ 3.311
Standard ColorVoltagePin
Power Protection
Surge Suppressor
Line conditioner
Standby power supply (SPS)
Uninterruptible power supply (UPS)
top related