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2-12
MS-9803 Mainboard
Audio Amplifier Connector: JAMP1
The JAMP1 is used to connect audio amplifiers to enhance audio performance.
1
JAMP1
PIN SIGNAL
1 AMP_L-
2 AMP_L+
3 AMP_R-
4 AMP_R+
Pin Definition
S/PDIF-Out Connector: JSPD1 (Optional, for HDMI graphics card
only)
This connector is used to connect S/PDIF (Sony & Philips Digital Interconnect Format)
interface for digital audio transmission to the HDMI graphics card.
JSPD1
SPDIF-Out
GND
SPI Flash ROM Connector: JSPI2
This connector is used to flash SPI flash ROM.
1
JSPI2
2
9
10
Pin Description Pin Description
1 VCC3_SB 2 VCC3_SB
3 SPI_MISO_F 4 SPI_MOSI_F
5 SPI_CS0_F# 6 SPI_CLK_F
7 GND 8 GND
9 SPI_HOLD# 10 NC
Pin Definition