Acer TravelMate 4020 TravelMate 4020 Service Guide - Page 37

Track-to-track Average Maximum 2ms 12ms 22ms TOSHIBA 2ms 12ms 22ms 2ms 12ms 22ms TOSHIBA Nominal Power Requirements Logic +5V( ±5 %) +5V( ±5 %) +5V( ±5 %) Start 4.7watts 5.0watts 4.7watts Seeking 2.6watts 2.9watts 2.6watts Reading/Writing 2.3watts 2.5watts 2.3watts Idle 0.9watts 1.05watts 0.9watts Standby 0.25watts 0.25watts 0.25watts Sleep 0.1watts 0.1watts 0.1watts Other Rotational Speed 4,200rpm 5,400rpm 4,200rpm Average Latency 7.14ms 5.56ms 7.14ms Interface ATA-2/3/4/5/6 ATA-5 ATA-2/3/4/5/6 Buffer 8MB 16MB 8MB Physical & Environmental Specs Dimensions/Weight: Height 0.37" (9.5mm) 0.37" (9.5mm) 0.37"(9.5mm) Width 2.75" (69.85mm) 2.75" (69.85mm) 2.75" (69.85mm) Depth 3.94" (100mm) 3.94" (100mm) 3.94"(100mm) Weight 3.35 oz (94g) 3.56 oz (101g) 3.49 oz (99g) Ambient Temperature: Operating 41 ° - 131 ° F (5 to 55 ° C) 41 ° - 131 ° F (5 to 55 ° C) 41 ° - 131 ° F (5 to 55° C) Non-Operating -4 ° - 140 ° F (-20 to 60 ° C) -4 ° - 140 ° F (-20 to 60 ° C) -4 ° - 140 ° F (-20 to 60 ° C) Shipping -40 ° - 158 ° F (-40 to 70 ° C) -40 ° - 158 ° F (-40 to 70 ° C) -40 ° - 158 ° F (-40 to 70 ° C) Vibration and Shock Operating Vibration 9.8 M/S2 (1.0G), 5 - 500 9.8 M/S2 (1.0G), 5 - 500 9.8 M/S2 (1.0G), 5 - 500 Hz Hz Hz Operating Shock 200g 200g 200g Non-Operating Shock 800g 800g 800g Reliability Characteristics Error Rates Non-recoverable Seek 1 in 1013 bits 1 in 106 seeks 1 in 1013 bits 1 in 106 seeks 1 in 1013 bits 1 in 106 seeks Other Chapter 1 31