HP Elite 7300/7500, MT 663324-003 page 4 
System Board for use in HP Pro 7300 models System Board for use in HP Pro 7500 models
System Board Connectors and Jumpers (component location may vary)
CPU_FAN1 Heat sink fan connector
F_USB1
1st USB connector
XMM1 Memory socket - channel A
F_USB2
2nd USB connector
XMM2 Memory socket - channel B
F_USB3
3rd USB connector
XMM3 Memory socket - channel A
F_USB4
4th USB connector
XMM4 Memory socket - channel B F_AUDIO Front audio connector
ATXPOWER Main power connector PCIEX1_3 PCIe X1 slot
BATTERY RTC battery socket PCIEX1_2 PCIe X1 slot
MINI_CARD1 Mini PCIe connector SPDIF_OUT2 Internal SPDIF connector
CMOS/PSWD CMOS/password header PCIEX1_1 PCIe X1 slot
SATA4 SATA drive PCIEX16 PCIe X16 slot
SATA5 SATA drive AUDIO Audio connectors
SATA2 1st optical drive SYS_FAN1 Fan connector
HOOD_SENSOR
Hood sensor connector ATX_CPU CPU power connector
F_PANEL Front panel connector HDMI/DVI Combo HDMI/DVI connector
SATA0 1st hard drive LAN+USB LAN + USB connector
SATA1 2nd hard drive USB USB connectors
SATA3 2nd optical drive SPDIF_OUT21 External SPDIF connector
System Board Connectors and Jumpers (component location may vary)
SPDIF_OUT1 Internal SPDIF connector SATA2 1st optical drive
PUMP_FAN CPU cooler connector SATA3 2nd optical drive
ATX_CPU CPU power connector
F_USB1
1st USB connector
CPU_FAN1 Heat sink fan connector
F_USB2
2nd USB connector
XMM1 Memory socket - channel A BATTERY RTC battery socket
XMM2 Memory socket - channel B
F_USB3
3rd USB connector
XMM3 Memory socket - channel A F_AUDIO Front audio connector
XMM4 Memory socket - channel B PCIEX1_3 PCIe X1 slot
ATXPOWER Main power connector PCIEX1_2 PCIe X1 slot
MINI_CARD1 Mini PCIe connector PCIEX1_1 PCIe X1 slot
CMOS/PW CMOS/password header PCIEX16 PCIe X16 slot
SATA4 SATA drive AUDIO Audio connectors
SATA5 SATA drive SYS_FAN1 Fan connector
HOOD_SENSE
Hood sensor connector DVI-D//DVI-I Combo HDMI/DVI connector
F_PANEL Front panel connector SS_USB1 USB 3.0 connectors
F_SSUSB1 Internal USB 3.0 connector LAN+USB LAN + USB connector
SATA0 1st hard drive USB1 USB 2.0 connectors
SATA1 2nd hard drive