Chapter 2 Product Overview14 Reference Manual LittleBoard 800Environmental SpecificationsTable 2-5 provides the most efficient operating and storage condition ranges required for this board.Note: *The 1.4GHz Pentium M requires a fan above 70°C.Power SpecificationsTable 2-6 shows the power requirements from the baseboard and the board power output.Operating conditions:• In-rush operating conditions include video, 512MB DDR RAM, and power.• Idle operating conditions include the in-rush conditions as well as an I/O board, one IDE hard drive withWindows XP, keyboard, and mouse.• BIT = Burn-In-Test. Operating conditions include idle conditions as well as four serial loop-backs, oneparallel loop-back, one USB DVD Drive, one on-board Compact Flash drive with 256 MB CompactFlash, two Ethernet connections, two USB Compact Flash readers with 256MB Compact Flash, oneUSB floppy drive.Thermal/Cooling RequirementsThe CPU, Memory Hub, I/O Hub, and voltage regulators are the sources of heat on the board. TheLittleBoard 800 is designed to operate at the maximum speed of the respective CPUs: 800MHz, 1.0GHz, or1.4GHz. The Celeron M CPUs require a heatsink but no fan for -40°C to +85°C operation. The Pentium MCPU requires a heatsink but no fan for -20° to +70°C operation, but does require a fan above +70°C (+70°Cto +85°C operation).Table 2-5. Environmental RequirementsParameter 800MHz Celeron MConditions1.0GHz Celeron MConditions1.4GHz Pentium MConditionsTemperatureOperating –20° to +70°C(–4° to +158°F)–20° to +70°C(–4° to +158°F)–20° to +70°C(–4° to +158°F)Extended(Optional)–40° to +85°C(–40° to +185°F)–40° to +85°C(–40° to +185°F)–40° to +85°C*(–40° to +185°F)Storage –55° to +85°C(–67° to +185°F)–55° to +85°C(–67° to +185°F)–55° to +85°C(–67° to +185°F)HumidityOperating 5% to 95%relative humidity,non-condensing5% to 95%relative humidity,non-condensing5% to 95%relative humidity,non-condensingNon-operating5% to 95%relative humidity,non-condensing5% to 95%relative humidity,non-condensing5% to 95%relative humidity,non-condensingTable 2-6. Power Supply RequirementsParameter 800MHzCeleron MCharacteristics1.0GHzCeleron MCharacteristics1.4GHzPentium MCharacteristicsw/o fan1.4GHzPentium MCharacteristicsw/fanInput Type Regulated DCvoltagesRegulated DCvoltagesRegulated DCvoltagesRegulated DCvoltagesIn-rush Current 14.24A (71.20W) 14.24A (71.20W) 14.44A (72.20W) 14.89A (74.45W)Idle Power 1.94A (9.68W) 1.78A (9.90W) 1.87A (9.35W) 2.74A (13.72W)BIT Current 2.99A (14.96W) 2.81A (14.03W) 3.57A (17.85W) 4.11A (20.56W)