Technical information

52 Chapter 5
Power Cable Connectors
Please note that the 20-pin and 24-pin power cables can both be connected to the ATX1
connector. With the 20-pin power cable, just align the 20-pin power cable with the pin one of the
ATX1 connector. However, using 20-pin power cable may make the system unbootable or
unstable because of insufficient electricity. A minimum power of 300W is recommended for a
fully-configured system.
# Label Component # Label Component
1 CPU socket LGA775 socket for Intel
Pentium D/Pentium 4/
Celeron D CPUs
2 CPU_FAN CPU cooling fan
connector
3 DIMM1~2 240-pin DDR2 SDRAM
slots
4 IR1 Infrared header
5 CHS1 Chassis detect header 6 ATX_POWER Standard 24-pin ATX
power connector
7 FDD Floppy diskette drive
connector
8 IDE1 Primary IDE channel
9 CLR_CMOS Clear CMOS jumper 10 PANEL1 Front panel switch/LED
header
11 SATA1~4 Serial ATA connectors 12 JP2 To be defined
13 JP1 To be defined 14 BIOS_WP BIOS protect jumper
15 USB3~5 Front panel USB headers 16 1394A1* Onboard 1394a header
17 COM2 Onboard serial port
header
18 AUDIO1 Front panel audio header
19 SPDIFO2 SPDIF out header 20 PCI1~2 32-bit add-on card slots
21 AUX_IN Auxiliary In connector 22 PCIEX1 PCI Express x1 slot
23 PCIEX16 PCI Express x16 slot 24 SYS_FAN System fan connector
25 ATX_12V Auxiliary 4-pin power
connector