2 ASMB-805 Startup Manual
The board is equipped with several jumpers that allow
the system to be configured for specific applications. The
function of each jumper and connector is listed in the table
below.
Connectors
Label
Function
ATXPWR1
ATX 24-pin main power connector
ATX12V1
Processor power connector
BH2
For optional battery kit
BIOS_SPI1
BIOS ROM
BMC_CN1, BMC_CN2 IPMI module header
COM2
Serial port RS-232
CPUFAN0
CPU fan connector
DIMMA1, DIMMA2,
DIMMB1, DIMMB2,
DIMMC1, DIMMC2,
DIMMD1, DIMMD2,
DDR4 slots
EX_THR1
Connector for external thermistor
GPIO1
GPIO connector
HDAUD1
Audio header
JFP1, JFP2, JFP3
Front panel header
KBMS1
External keyboard and mouse
connector (6 pin)
LAN1_USB3_12
RJ-45 LAN port 1 + USB 3.0 port
1/2 connector
LAN2_USB3_34
RJ-45 LAN port 2 + USB 3.0 port
3/4 connector
LANLED1
LAN LED extension connector
LPC2
TPM connector
M2_2280_1
M.2 22110/2280/2242
PCIEX4_SLOT1
PCIEx4 slot
PCIEX16_SLOT2
PCIEx16 slot
PCIEX8_SLOT3
PCIEx8 slot (0 or x8 link)
PCIEX16_SLOT4
PCIEx16 slot (x16 or x8 link)
PCIEX8_SLOT5
PCIEx8 slot (0 or x8 link)
PCIEX16_SLOT6
PCIEx16 slot (x16 or x8 link)
PEHP1
CPU SMBUS header
PMBUS1
PMBUS connector for linking to
the power supply
SATA0~SATA5
Serial ATA0~5
SGPIO1
HDD LED control header
Slot12V1
For PCIe slot 12V input only
Jumpers and Connectors (Cont.)
SMBUS1
SMBus header
SPI_CN1
Connector for BIOS update tool
SPI_SKT1
EC ROM
SYS_LED1
System LED connector
SYSFAN0~SYSFAN3,
REAR_FAN
System FAN connector
USB9_10
USB 2.0 port 9 and 10 (9-pin
header)
USB11
USB 2.0 port 11 (Type A)
USB13_14
USB 2.0 port 13 and 14
USB3_78
USB 3.0 port 7 and 8 (20-pin
header)
VGA1_COM1
VGA and COM connector
VOLT1
Alarm board power connector
VROC1
Intel Virtual RAID (VROC) key
Jumper List
Label
Function
JCASE1
Chassis case open alarm header
JCMOS1
CMOS clear
JME1
ME update
JTHR_SEL
Internal (deault pin1-2) or external
(pin2-3) thermistor selection
JWDT1
Watch dog reset
PSON1
AT(1-2) / ATX(2-3)
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
Keep CMOS data/Disable ME update Clear CMOS data/Enable ME update
1
2
3
1
2
3
Jumpers and Connectors
