ASRock C621A WS User Manual - Page 38

short the Clear CMOS Pad.

Page 38 highlights

Serial ATA3 DOM Connectors (SATA_4) (see p.6, No. 18) (SATA_5) (see p.6, No. 16) Serial ATA3 Connectors Vertical: (SATA_4) (see p.6, No. 18) (SATA_5) (see p.6, No. 16) Serial Port Header (9-pin COM1) (see p.6, No. 44) Clear CMOS Pad (CLRMOS1) (see p.6, No. 58) Non Maskable Interrupt Button Header (NMI_BTN2) (see p.6, No. 46) SATA_5 SATA_4 The SATA3 DOM connectors support both SATA DOMs (Disk-On-Module) and SATA data cables for internal storage devices. SATA_5 SATA_4 DDCD#1 TTXD1 GND RRTS#1 RRI#1 1 CCTS#1 DDSR#1 DDTR#1 RRXD1 These two SATA3 connectors support SATA data cables for internal storage devices with up to 6.0 Gb/s data transfer rate. *2 Type-C USB headers (USB31_TC1/ USB31_TC2) are shared with 2 SATA 7-pin headers (SSATA_2/SSATA_3) (BOM option). This COM header supports a serial port module. This allows you to clear the data in CMOS. To clear CMOS, take out the CMOS battery and short the Clear CMOS Pad. GND 1 CONTROL Please connect a NMI device to this header. English 32

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32
English
Serial ATA3 DOM
Connectors
(SATA_4)
(see p.6, No. 18)
(SATA_5)
(see p.6, No. 16)
°e SATA3 DOM connectors
support both SATA DOMs
(Disk-On-Module) and SATA
data cables for internal storage
devices.
Serial ATA3 Connectors
Vertical:
(SATA_4)
(see p.6, No. 18)
(SATA_5)
(see p.6, No. 16)
°ese two SATA3 connectors
support SATA data cables for
internal storage devices with
up to 6.0 Gb/s data transfer
rate.
*2 Type-C USB headers (USB31_TC1/
USB31_TC2) are shared with 2 SATA
7-pin headers (SSATA_2/SSATA_3)
(BOM option).
Serial Port Header
(9-pin COM1)
(see p.6, No. 44)
CCTS#1
RRTS#1
DDSR#1
DDTR#1
RRXD1
GND
TTXD1
DDCD#1
1
RRI#1
°is COM header supports a
serial port module.
Clear CMOS Pad
(CLRMOS1)
(see p.6, No. 58)
°is allows you to
clear the
data in CMOS. To clear CMOS,
take out the CMOS battery and
short the Clear CMOS Pad.
Non Maskable Interrupt
Button Header
(NMI_BTN2)
(see p.6, No. 46)
1
CONTROL
GND
Please connect a NMI device
to this header.
SATA_5
SATA_4
SATA_5
SATA_4