IBM IC35L040AVVN07-0 Hard Drive Specifications - Page 62

Power supply current of 80 GB and 60 GB models (values in milliamps. RMS) Idle average Idle ripple (peak-to-peak) Low RPM Idle Low RPM Idle Ripple Unload Idle average Unload Idle Ripple Seek average1 Seek peak Random R/W average2 Random R/W peak Silent R/W average Silent R/W peak Start up (max) Standby average Sleep average +5 Volts [mA] Pop Mean 310 370 150 50 150 45 380 600 470 790 470 790 740 160 150 Std Dev 9 15 4 4 4 4 10 20 12 18 13 18 21 4 4 Figure 55. Power supply current of 80 GB and 60 GB models +12 Volts [mA] Pop Mean 320 320 170 230 260 230 400 740 540 1700 410 740 1800 15 15 Std Dev 33 33 20 29 29 22 31 42 28 130 28 42 98 1 1 Total [W] 5.4 2.8 3.9 6.7 8.8 7.3 1.0 0.9 Power supply current of 40 GB and 20 GB models (values in milliamps. RMS) Idle average Idle ripple (peak-to-peak) Low RPM idle Low RPM idle ripple Unload idle average Unload idle ripple Seek average1 Seek peak Random R/W average2 Random R/W peak Silent R/W average Silent R/W peak Start up (max) Standby average Sleep average +5 Volts [mA] Pop Mean 303 273 156 49 157 49 364 550 454 738 459 738 713 156 139 Std Dev 3 15 3 6 2 6 4 0 12 43 12 43 25 3 6 Figure 56. Power supply current of 40 GB and 20 GB models Except for a peak of less than 100 µs duration 1 Random seeks at 40% duty cycle 2 Seek duty = 30%, W/R duty = 45%, Idle Duty = 25% +12 Volts [mA] Pop Mean 270 312 140 333 220 216 336 705 488 1520 350 705 1700 15 15 Std Dev 16 30 7 45 19 24 14 6 33 29 31 6 15 1 1 Total [W] 4.8 2.5 3.4 5.9 8.1 6.5 1.0 0.9 Deskstar 120GXP hard disk drive specifications 48