5
Introducing the Motherboard
Table of Motherboard Components
This concludes Chapter 1. The next chapter explains how to install the motherboard.
1 CPU Socket LGA775 socket for Pentium 4/Celeron D/Pentium D CPUs
2 CPU_FAN CPU cooling fan connector
3 DIMM1~2 184-pin DDR SDRAM slots
6 ATX1 Standard 20-pin ATX power connector
5 FDD1 Floppy disk drive connector
7 IDE1 Primary IDE connector
8 IDE2 Secondary IDE connector
10 CLR_CMOS Clear CMOS jumper
11 BIOS_WP BIOS flash protect jumper
13 PANEL1 Front panel switch/LED header
20 AGP1 AGP slot
14 USB3~4 Front Panel USB headers
19 PCI1~3 32-bit add-on card slots
9 SPK1 Speaker header
17 CD_IN Analog audio input header
21 AUDIO1 Front panel audio header
23 ATX12V 4-pin +12V power connector
22 SYS_FAN System cooling fan connector
LABEL COMPONENT
16 SPDIFO1 SPDIF out header
12 SATA1~2 Serial ATA connectors
15 CNR1* Communications Networking Riser slot
4 IR1 Onboard infrared header
18 AUX_IN Auxiliary audio input header
ā*ā stands for optional components.