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Jumpers and Connectors
The board has a number of jumpers that allow you to con-
figure your system to suit your application. The table below
lists the function of each of the jumpers and connectors.
Connector / Jumper List
Label
Function
ATXPWR1
ATX 24 pin main power connector
Processor power connector
ATX12V1
(for CPU0)
Processor power connector
ATX12V2
(for CPU1)
SLOT12V1
For PCIe slot 12V input only
SATA0~SATA7
Serial ATA0~7
USB7_8, USB9_10
USB 2.0 header 7, 8, 9, 10
USB11
USB 2.0 port 11 (Type-A)
USB1_2, USB3_4,
USB 3.0 port 1, 2, 3, 4; USB 3.0
USB5_6
port 5, 6 (20-pin header)
PCI_SLOT1
PCI slot
PCIEX16_SLOT2
PCIE x16 slot
PCIEX16_SLOT3
PCIE x16 slot
PCIEX16_SLOT4
PCIE x16 slot
PCIEX16_SLOT5
PCIE x16 slot
PCIEX16_SLOT6
PCIE x16 slot
PCIEX8_SLOT7
PCIE x8 slot
DIMMA1~DIMML1
DDR4 slot
CPUFAN0, CPUFAN1 CPU FAN connector
SYSFAN0~SYSFAN4 System FAN connector
LAN1,LAN2
GbE LAN connector
LAN34
10GbE LAN connector
VGA1_COM1
VGA and COM connector
COM2
Serial port: RS-232
External keyboard and mouse
KBMS1
connector (6 pin)
BIOS_SKT1
BIOS ROM
LANLED1
LAN LED extension connector
SMBUS1
Front panel SMBus header
BMC_CN1,
IPMI module header
BMC_CN2
GPIO1
GPIO connector
SGPIO1
SATA SGPIO header
JCASE1
Chassis case open alarm header
2 ASMB-925 Startup Manual
Jumpers and Connectors
HDAUD1
Audio header
JFP1, JFP2, JFP3
Front panel header
PMBUS1
Power supply SMBbus I2C header
Enable (default pin 1-2)/disable
JWDT1
watch dog function
EX_THR1
For external thermistor cable use
Thermistor choose for
JTHR_SEL1
internal(default pin 1-2)/external
SYS_LED1
For optional system LED indicator
Low pin count connector for Ad-
LPC1
vantech designed LPC modules
VOLT1
Alarm Board Power connector
SPI_CN1
SPI flash card pin header
AT(1-2) / ATX(2-3 default) mode
PSON1
selector
PEHP1
CPU SMBUS header
BH2
Battery connector
VROC1
VROC hardware key header
CN1
CPLD code update header
PCN1
CPU power code update header
SPI_SKT1_U512
EC ROM
EC_SMBUS1
EC SMBus header
JCMOS1
CMOS clear
JME1
Intel ME update
PCI Clock selection
JPCICLK1
(1-2): 66 MHz
(2-3): 33 MHz (default)
JCMOS1/JME1: CMOS clear/ME update function
Closed pins
Result
1-2
Keep CMOS data/Disable ME update*
2-3
Clear CMOS data/Enable ME update
*: Default
1
2
3
Keep CMOS data/Disable ME update
1
2
3
Clear CMOS data/Enable ME update
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