5
Introducing the Motherboard
Table of Motherboard Components
This concludes Chapter 1. The next chapter explains how to install the motherboard.
“*” stands for optional components and may not exist onboard.
LABEL COMPONENTS
LGA775 socket for Intel Core™ 2 Extreme (FSB
1. CPU Socket
1333 MHz OC)/Core™ 2 Quad/Core™ 2 Duo/
Pentium D/Pentium 4/Celeron D CPUs
2. SYS_FAN1
System cooling fan connector
3. CPU_FAN1
CPU cooling fan connector
4. DIMM1~4
240-pin DDR2 SDRAM slots
5. IR1*
Infrared header
6. ATX1
Standard 24-pin ATX power connector
7. FDD1
Floppy disk drive connector
8. CAS_FAN1
Case fan connector
9. SATA1~4
Serial ATA connectors
10. SPI_ROM1*
SPI ROM header
11. BIOS_WP
BIOS flash protect jumper
12. IDE1
Primary IDE connector
13. PANEL1
Front panel switch/LED header
14. IDE2
Secondary IDE connector
15. CLR_CMOS1
Clear CMOS jumper
16. SPK1
Speaker header
17. USB1~2
Front Panel USB headers
18. 1394A1~2*
Onboard 1394a headers
19. CD_IN1
Analog audio input connector
20. F_AUDIO1
Front panel audio header
21. PCI1~3
32-bit add-on card slots
22. PCIE1~2
PCI Express slots for graphics interface
23. PCIE3~4
PCI Express x1 slots
24. ATX4P1
Auxiliary power connector for graphic card
25. NB_FAN1
Northbridge fan connector
26. ATX12V1
Auxiliary 4-pin power connector
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