Intel Q67 User Manual page 21

(10) RS232/422/485 Header (4-pin): TX-RXCOM1
TX-RXCOM1
3
4
Pin 1
2
TX-RX Header
(11) HDMI-SPDIF Out header (2-pin): HDMI_SPDIF
GND
HDMI_SPDIF_OUT
1 2
HDMI_SPDIF Header
(12) TPM Header (19-pin):TPM
2 20
Pin 1
19
TPM Header
17