Computer Power

Question 1

SATA Power

Answer 1

• 15 pins
• Includes +3.3v, +5v, & +12v wires
• +3.3v is rarely used

Question 2

MOLEX Connector

Answer 2

• 4 pin peripheral power connection
  
  • Molex connector company
  • AMP Mate-N-Lock
  • Provides +12v & +5v
• Power for many devices in the computer case
  
  • Storage devices
  • Optical drives
  • Fans

Question 3

4 Pin ATX +12v

Answer 3

• 4 pin ATX +12v power
  
  • ATX12v Advanced Technology Extended Boards
• Additional 12volt power for older motherboard
  
  • Primarily for CPU

-May be labled ATXV12, P4 or CPU

Question 4

8 Pin EPS +12v Power

Answer 4

• Entry level power supply specification
  
  • Also called EPS12v cable
  • A 4+4 connector
• Created to provide +12v power to multiple CPUs
  
  • Seen mostly in Servers

-Not the same as 8 pin PCI Express power

Question 5

PCIe 6 Pin & 8 Pin Power

Answer 5

• Additional power for PCI Express adapter
  
  • 6 pin (75 watts )
  • 8 pin (150 watts)
  • Provides +12v
• Commonly seen on high-power components
  
  • Video adapters
• Some cable have two pieces
  
  • 6 pin & 2 Pin = 8 pin

Question 6

20 pin & 24 pin Motherboard Power

Answer 6

• Main motherboard power
  
  • Provides +3.3v, +/-5v, and +/-12v
• 20 pin was original ATX standard
  
  • 24 pin added for PCI Express power
• You can connect a 24 pin connector to a 20 pin motherboard
• Some cables are 20 pin + 4 pin = 24 pin