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 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