C
ONNECTORS
AND
J
UMPERS
M
AINBOARD
5-2
Jumpers
See the following figure and table for information on mainboard jumpers.
\
10
Reset button
11
Power button
12
AHCI SATA 2, 3, 4, 5 connectors
13
SCU0 SAS 0, 1, 2, 3 connector
14
SCU1 SAS 4, 5, 6, 7 connector
15
Internal USB connector
16
HDD power connectors for AHCI SATA and SCU SAS (12, 13, 14)
17
BIOS Socket
18
Mezzanine Connector
19
Upgrade ROM connector
20
RJ45
21
Battery connector
22
PCIe x 16 connector
23
CPLD
24 PCH
chipset
25
Clock generator and clock buffer
26
Intel 82574 GB E LAN
Note:
CMOS Clear jumper - Clears NVRAM. The NVRAM will be cleared when the jumper is moved
over with the system powered off while still connected to power.
Pins 1-2: clears NVRAM
Pins 2-3: normal operation.
Table 2: Mainboard Jumpers
L
OCATION
J
UMPER
P
OSITIONS
(P
IN
)
F
UNCTION
D
EFAULT
S
ETTING
CMOS Clear
J43
1-2
Normal RTC RST
x
2-3
CLR RTC Registers
Table 1: Mainboard Connectors (Continued)
L
OCATION
D
ESCRIPTION
!