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2.9 Onboard Headers and Connectors
Onboard headers and connectors are NOT jumpers. Do NOT place
jumper caps over these headers and connectors. Placing jumper caps
over the headers and connectors will cause permanent damage of the
motherboard!
Serial ATA2 Connectors
(SATA_1: see p.2, No. 12)
(SATA_2: see p.2, No. 13)
(SATA_3: see p.2, No. 11)
(SATA_4: see p.2, No. 10)
Serial ATA (SATA)
Data Cable
(Optional)
Print Port Header
(25-pin LPT1)
(see p.2 No. 17)
USB 2.0 Headers
(9-pin USB6_7)
(see p.2 No. 18)
(9-pin USB8_9)
(see p.2 No. 20)
22
SATA_3
SATA_1
SATA_2
AFD#
ERROR#
PINIT#
GND
SLIN#
1
SPD7
SPD6
ACK#
SPD5
BUSY
SPD4
SPD3
SPD2
SPD1
SPD0
STB#
USB_PWR
P-9
P+9
GND
DUMMY
1
GND
P+8
P-8
USB_PWR
ASRock A55M-DGS Motherboard
These four Serial ATA2
(SATA2) connectors support
SATA_4
SATA data cables for internal
storage devices. The current
SATA2 interface allows up to
3.0 Gb/s data transfer rate.
Either end of the SATA data
cable can be connected to the
SATA / SATA2 hard disk or the
SATA2 connector on this
motherboard.
This is an interface for print
port cable that allows
convenient connection of printer
devices.
PE
SLCT
Besides four default USB 2.0
ports on the I/O panel, there
are two USB 2.0 headers on
this motherboard. Each USB 2.0
header can support two USB
2.0 ports.
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