Specifications

Chapter 2 Product Overview
14 Reference Manual LittleBoard 800
Environmental Specifications
Table 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 Specifications
Table 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 with
Windows XP, keyboard, and mouse.
• BIT = Burn-In-Test. Operating conditions include idle conditions as well as four serial loop-backs, one
parallel loop-back, one USB DVD Drive, one on-board Compact Flash drive with 256 MB Compact
Flash, two Ethernet connections, two USB Compact Flash readers with 256MB Compact Flash, one
USB floppy drive.
Thermal/Cooling Requirements
The CPU, Memory Hub, I/O Hub, and voltage regulators are the sources of heat on the board. The
LittleBoard 800 is designed to operate at the maximum speed of the respective CPUs: 800MHz, 1.0GHz, or
1.4GHz. The Celeron M CPUs require a heatsink but no fan for -40°C to +85°C operation. The Pentium M
CPU requires a heatsink but no fan for -20° to +70°C operation, but does require a fan above +70°C (+70°C
to +85°C operation).
Table 2-5. Environmental Requirements
Parameter 800MHz Celeron M
Conditions
1.0GHz Celeron M
Conditions
1.4GHz Pentium M
Conditions
Temperature
Operating –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)
Humidity
Operating 5% to 95%
relative humidity,
non-condensing
5% to 95%
relative humidity,
non-condensing
5% to 95%
relative humidity,
non-condensing
Non-
operating
5% to 95%
relative humidity,
non-condensing
5% to 95%
relative humidity,
non-condensing
5% to 95%
relative humidity,
non-condensing
Table 2-6. Power Supply Requirements
Parameter 800MHz
Celeron M
Characteristics
1.0GHz
Celeron M
Characteristics
1.4GHz
Pentium M
Characteristics
w/o fan
1.4GHz
Pentium M
Characteristics
w/fan
Input Type Regulated DC
voltages
Regulated DC
voltages
Regulated DC
voltages
Regulated DC
voltages
In-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)