Here is a 750G 7200.11 on an 2 processor Opteron 850 machine with pc2100 ram. # hdparm -tT /dev/sdb /dev/sdb: Timing cached reads: 1360 MB in 2.00 seconds = 679.88 MB/sec Timing buffered disk reads: 310 MB in 3.00 seconds = 103.33 MB/sec John