Serial ATA and UDMA

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I happened to be looking in dmesg and noticed the following:

SCSI subsystem initialized
libata version 1.02 loaded.
ata_piix version 1.02
PCI: Setting latency timer of device 0000:00:1f.2 to 64
ata1: SATA max UDMA/133 cmd 0xC000 ctl 0xC402 bmdma 0xD000 irq 177
ata2: SATA max UDMA/133 cmd 0xC800 ctl 0xCC02 bmdma 0xD008 irq 177
ata1: dev 0 cfg 49:2f00 82:346b 83:7f01 84:4003 85:3c68 86:3e01 87:4003
88:20ff
ata1: dev 0 ATA, max UDMA7, 234493056 sectors: lba48
ata1: dev 0 configured for UDMA/133


Does this mean that my SATA hard drive is operating at UDMA/133 rather than
150? Some sources say that UDMA7=UDMA/133, but some mention UDMA/150. Is
there such thing as UDMA/150, or is UDMA7 one step up from UDMA/133?

Could this an issue of my SATA interface not being completely supported?
It's the onboard controller on an 865PE motherboard.

Jonathan




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