Hi, I've recently installed FC4 Test 2. The system is AMD64 (installed x86_64) on VIA 8237 Mobo. I have one Samsung SATA drive (120GB) on VIA VT6420 controller and 2 IDE drives of 80GB each. I've performed a hdparm check on these three drives and got the following results: --------------------------------------------------------------------------------------------------------------- [root@laetitia ~]# hdparm -tT /dev/sda /dev/hda /dev/hdb /dev/sda: Timing cached reads: 1676 MB in 2.00 seconds = 837.29 MB/sec HDIO_DRIVE_CMD(null) (wait for flush complete) failed: Inappropriate ioctl for device Timing buffered disk reads: 120 MB in 3.00 seconds = 39.94 MB/sec HDIO_DRIVE_CMD(null) (wait for flush complete) failed: Inappropriate ioctl for device /dev/hda: Timing cached reads: 1788 MB in 2.00 seconds = 893.24 MB/sec Timing buffered disk reads: 118 MB in 3.02 seconds = 39.03 MB/sec /dev/hdb: Timing cached reads: 1784 MB in 2.00 seconds = 890.80 MB/sec Timing buffered disk reads: 166 MB in 3.02 seconds = 55.03 MB/sec --------------------------------------------------------------------------------------------------------------- The performance of SATA drive is not upto the mark. I used to get better results on FC3. What could be the possible problem and any ideas on how to solve it? Regards, GVK -- Real programmers don't work 9 to 5. If any real programmers are around at 9, it's because they were up all night