Hi, sorry for delay.

I have installed ubuntu on an 915p chipset motherboard and pentium4
2.93Ghz

but the problem is same

$ sudo hdparm /dev/sda
[sudo] password for nitish: 

/dev/sda:
 IO_support    =  0 (default) 
16-bit)
 HDIO_GET_UNMASKINTR failed: Inappropriate ioctl for device
 HDIO_GET_DMA failed: Inappropriate ioctl for device
 HDIO_GET_KEEPSETTINGS failed: Inappropriate ioctl for device
 readonly      =  0 (off)
 readahead     = 256 (on)
 geometry      = 10011/255/63, sectors = 160836480, start = 0

and hard disk performance is:

$ sudo hdparm -tT /dev/sda

/dev/sda:
 Timing cached reads:   710 MB in  2.00 seconds = 354.58 MB/sec
 Timing buffered disk reads:   26 MB in  3.06 seconds =   8.50 MB/sec



** Attachment added: "lspci"
   http://launchpadlibrarian.net/16868037/lspci.txt

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failed: Inappropriate ioctl for device
https://bugs.launchpad.net/bugs/257840
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