On 11/14/2010 12:50 PM, James Cloos wrote:
All of the ad copy and doc I can find claim that the sata controller in the 890gx supports 6Gbps sata3. But I still get this: ahci 0000:00:11.0: AHCI 0001.0200 32 slots 6 ports 3 Gbps 0x3f impl SATA mode ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 300) ata2.00: ATA-8: WDC WD1002FAEX-xxxxxx, 05.xxxxx, max UDMA/133 I hadn't noticed before because that box's first drive only supports 3 Gbps. Does the 6Gpbs mode require that all of the disks are sata3? (That would be /most/ annoying, given that optical drives all seem to be 1.5Gbps.)
No, on SATA each link is entirely independent of the other links (ignoring port multipliers).
The "3 Gbps" maximum you see on the first line comes directly from what capabilities the chip reports, so perhaps the firmware/BIOS is not initializing the chip properly.
AHCI 1.2 hardware, the AHCI driver and libata core should all support operation at 6 Gbps.
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