[O/T] raptor 10000rpm ide disks

[Neal D. Becker]

I just got a pair of WD raptor disks, which are SATA 10000rpm.  Sweet, right?  
No!  They are connected to Asus A7N8X MB, which has SiI3112 Serial ATA 
(according to dmesg).

hdparm -t shows TERRIBLE slow results.  
/sbin/hdparm /dev/hde

/dev/hde:
 multcount    = 16 (on)
 IO_support   =  0 (default 16-bit)
 unmaskirq    =  0 (off)
 using_dma    =  0 (off)
 keepsettings =  0 (off)
 readonly     =  0 (off)
 readahead    =  8 (on)
 geometry     = 4500/255/63, sectors = 72303840, start = 0

OK, now try with DMA turned on.  Locks up machine.  Here's what was logged:

Nov  4 11:30:56 rpppc1 kernel: blk: queue c03c61e8, I/O limit 4095Mb (mask 
0xffffffff)
Nov  4 11:31:01 rpppc1 kernel: hde: dma_intr: status=0x51 { DriveReady 
SeekComplete Error }
Nov  4 11:31:01 rpppc1 kernel: hde: dma_intr: error=0x10 { SectorIdNotFound }, 
LBAsect=1099511642367, high=65536, low=14591, sector=0
Nov  4 11:31:21 rpppc1 kernel: hde: dma_timer_expiry: dma status == 0x21

This is with kernel 2.4.20-20.9.