1-5
DO NOT short-circuit the pins except when clearing the RTC RAM. Short-circuiting or
placing a jumper cap will cause system boot failure!
If the steps above do not help, remove the onboard button cell battery and short the two
pins again to clear the CMOS RTC RAM data. After clearing the CMOS, reinstall the button
cell battery.
13. COM Port header
The COM (Serial) Port header allows you to connect a COM port module.
Connect the COM port module cable to this header, then install the module to a
slot opening on the system chassis.
The COM port module is purchased separately.
14. Front Panel Audio header
The Front Panel Audio header is for a chassis-mounted front panel audio
I/O module that supports HD Audio. Connect one end of the front panel
audio I/O module cable to this header.
We recommend that you connect a high-denition front panel audio
module to this header to avail of the motherboard’s high-denition
audio capability.
15. S/PDIF Out header
The S/PDIF Out header allows you to connect the Sony/Philips Digital
Interface (S/PDIF) Out module.
The S/PDIF module is purchased separately.
16. Speaker header
The 4-pin header is for the chassis-mounted system warning speaker. The
speaker allows you to hear system beeps and warnings.
17. SPI TPM header
This header supports a Trusted Platform Module (TPM)
system with a Serial Peripheral Interface (SPI), allowing you
to securely store keys, digital certicates, passwords, and
data. A TPM system also helps enhance network security,
protects digital identities, and ensures platform integrity.
The TPM module is purchased separately.
PIN 1
TXD
RTS
RI
RXD
DTR
DSR
CTS
PORT1L
PORT1R
PORT2R
SENSE_SEND
PORT2L
AGND
NC
SENSE1_RETUR
SENSE2_RETUR
AAFP
PIN 1
HD-audio-compliant
pin definition
+5V
SPDIFOUT
GND
+5V
GND
GND
Speaker Out
SPEAKER
PIN 1
TPM
PIN 1
VCCSPI
S_PLTRST#
NC
F_SPI_PWR
F_SPI_CZS0#_R
T_SPI_MISO
F_SPI_HOLD#_R
S_SPI_TPM_IRQ#
S_SPI_TPM_CS2#
TPM_DETECT_L
GND
T_SPI_CLK
T_SPI_MOSI
PRIME H510M-A R2.0
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