ok i see, thanks.
another good news is:
atapci0: <Intel SCH UDMA100 controller> port 0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0x1810-0x181f at device 31.1 on pci0
ad0: 61057MB <Kingston SSDNow V Series 64GB B090522a> at ata0-master UDMA100
with hw.ata.ata_dma_check_80pin=0, it was UDMA33 under...