Kontron KTHM76-mITX - Manual (Page 42)

KTQM77 – KTHM76 Users Guide
KTD-N0850-F Page 42
6.5 SATA (Serial ATA) Disk interface (J21 – J26)
The KTQM77 has an integrated SATA Host controller (PCH in the QM77 chipset) that supports
independent DMA operation on six ports. One device can be installed on each port for a maximum of six
SATA devices. A point-to-point interface (SATA cable) is used for host to device connections. Data
transfer rates of up to 6.0Gb/s (typically 600MB/s) on SATA0 and SATA1 and 3.0Gb/s (typically
300MB/s) on SATA2, SATA3, SATA4 and SATA5. SATA2 is shared with mPCIe0.
Note: Before installing OS on a SATA drive make sure the drive is not a former member of a RAID
system. If so some hidden data on the disk has to be erased. To do this, connect two SATA drives and
select RAID in BIOS. Save settings and select <Ctrl> <I> while booting to enter the RAID setup menu.
Now the hidden RAID data will be erased from the selected SATA drive.
The SATA controller supports:
RAID (Redundant Array of Independent Drives) based on a firmware system (KTQM77/mITX only):
2 to 6-drive RAID 0 (data striping)
2-drive RAID 1 (data mirroring)
3 to 6-drive RAID 5 (block-level striping with parity)
4-drive RAID 10 (data striping and mirroring)
2 to 6-drive matrix RAID, parts of a single drive can be assigned to different RAIDs
AHCI (Advanced Host Controller Interface)
NCQ (Native Command Queuing). NCQ is for faster data access.
Hot Swap
Intel® Rapid Recover Technology
2 – 256TB volume (Data volumes only)
Capacity expansion
TRIM in Windows 7 (in AHCI and RAID mode for drives not part of a RAID volume). (TRIM is for
SSD data garbage handling).
SATA connector pinning:
SATA0 (J21), SATA1 (J22), SATA2 (J23), SATA3 (J24), SATA4 (J25) and SATA5 (J26).
PIN Signal Type Ioh/Iol Pull
U/D Note
1 GND PWR - -
2 SATA* TX+
3 SATA* TX-
4 GND PWR - -
5 SATA* RX-
6 SATA* RX+
7 GND PWR - -
Signal Description
SATA* RX+
SATA* RX-
Host transmitter differential signal pair
SATA* TX+
SATA* TX-
Host receiver differential signal pair
“*” specifies 0, 1, 2, 3, 4, 5 depending on SATA port.
Available cable kit:
PN 821035 Cable SATA 500mm
Internal Connectors