System Board - HP Compaq 8300 Illustrated Parts & Service Map

System Board Connectors and Jumpers (component location may vary)
PWRCPU CPU power connector
XUI Processor socket
CPUFAN CPU/heat sink fan connector
DIMM1-4 Memory sockets
SATA PWR1 Hard drive power connector
SATA PWR0 Optical drive power connector
PWR CMD Power connector
PWR Main power connector
MEDIA Media card reader connector
FRONT_USB2 2nd USB connector
FRONT_USB 1st USB connector
MEDIA2 Media card reader connector
PB/LED Power switch connector
CMOS CMOS header
PSWD Password header
SATA2 2nd SATA hard drive
SATA0 1st hard drive (SATA3.0)
SATA1 2nd hard drive (SATA 3.0)
SPKR Speaker connector
SATA3 2nd ODD, or 1st ODD if a 3rd HDD exists (SATA 2.0)
HP Compaq 8300 Elite, CMT Chassis

System Board

ESATA eSATA connector, or 2nd ODD if a 3rd HDD exists
COMB Serial port
PCI3 PCI slot 3
PCI2 PCI slot 2
PCI1 PCI slot 1
HLCK Hood lock connector
FRONT AUD Front panel connector
PAR Parallel port connector
X4PCIEXP PCI Express x16 downshifted to a x4
BAT RTC battery socket
X16PCIEXP PCIe X16 slot
X1PCIEXP1 PCIe X1 slot
HSENSE Hood sensor connector
CHFAN2 System fan connector
IN/OUT Audio connectors
USB USB ports
RJ45/USB Ntwrk connector/USB ports
DISPLAYPORT DisplayPort connector
VGA+RS232 Monitor connector
PS2 PS/2 Mouse/keyboard connectors
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