Comment 85 for bug 119730

Same problem here, with both Asus P5B and P5QL SE mainboards.

Details from the P5QL SE mainboard:

petter@asus:~$ lspci |grep IDE
03:00.0 IDE interface: JMicron Technologies, Inc. JMB368 IDE controller
petter@asus:~$ uname -a
Linux asus 2.6.27-11-generic #1 SMP Thu Jan 29 19:24:39 UTC 2009 i686 GNU/Linux
petter@asus:~$ sudo hdparm -tT /dev/sda

/dev/sda:
 Timing cached reads: 4850 MB in 2.00 seconds = 2425.98 MB/sec
 Timing buffered disk reads: 172 MB in 3.56 seconds = 48.30 MB/sec
petter@asus:~$ sudo hdparm -i /dev/sda

/dev/sda:

 Model=WDC WD2500KS-00MJB0, FwRev=02.01C03, SerialNo=WD-WCANK5820205
 Config={ HardSect NotMFM HdSw>15uSec SpinMotCtl Fixed DTR>5Mbs FmtGapReq }
 RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=50
 BuffType=unknown, BuffSize=16384kB, MaxMultSect=16, MultSect=?16?
 CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=488397168
 IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
 PIO modes: pio0 pio3 pio4
 DMA modes: mdma0 mdma1 mdma2
 UDMA modes: udma0 udma1 udma2 udma3 udma4 udma5 *udma6
 AdvancedPM=no WriteCache=enabled
 Drive conforms to: Unspecified: ATA/ATAPI-1,2,3,4,5,6,7

 * signifies the current active mode