On 05/07/2010 08:41 AM, Rajagopal Swaminathan wrote: ... > I have seen this problem solved by just adding ide0-noprobe ideprobe=0 > to the kernel line in the menu.lst of grub at least in in some model > of HP desktops. adn a reboot of course. > > I have seen performance jump from 10MB/s to 50+MB/s in the hdparm -tT > /dev/<devname> > > No bios changes/upgrades etc. > I've got the same experience with HP DC7800 and DC7900's. CentOS needs these boot options, newer Fedora's don't. Mogens -- Mogens Kjaer, Carlsberg A/S, Computer Department Gamle Carlsberg Vej 10, DK-2500 Valby, Denmark Phone: +45 33 27 53 25, Mobile: +45 22 12 53 25 Email: mk at crc.dk Homepage: http://www.crc.dk