Ampro Little Board 700, Справочное руководство

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Chapter 2 Product Overview
LittleBoard 700 Reference Manual 19
Power Specifications
Table 2-8 shows the power requirements from the baseboard and the board power output.
Table 2-8. Power Supply Requirements
Parameter 400MHz Celeron (Q3)
Characteristics 650MHz Celeron (Q2)
Characteristics 933MHz Pentium III (Q1)
Characteristics
Input Type Regulated DC voltages Regulated DC voltages Regulated DC voltages
In-rush Current 2.04 Amps 2.80 Amps 3.36 Amps
BIT* Current
(Typical) 1.9A 2.3A 2.7A
In-rush Power 10.2W 14W 16.8W
Notes: *The BIT (burn in test) current was derived with 64MB SDRAM, floppy, HDD, I/O Interface
board, USB loopbacks, and one Ethernet channel connected using Win2k OS.
Environmental Specifications
Table 2-9 provides the most efficient operating and storage condition ranges required for this board.
Table 2-9. Environmental Requirements
Parameter 400MHz Celeron (Q3)
Conditions 650MHz Celeron (Q2)
Conditions 933MHz Pentium III (Q1)
Conditions
Temperature
Operating
+0
°
to+70
°
C
(32
°
to +158
°
F)
+0
°
to+70
°
C
(32
°
to +158
°
F)
+0
°
to+70
°
C
(32
°
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 20% to 80%
relative humidity,
non-condensing 20% to 80%
relative humidity,
non-condensing 20% to 80%
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
Thermal/Cooling Requirements
The CPU, Northbridge, Southbridge, and voltage regulators are the sources of heat on the board.
The LittleBoard 700 is designed to operate at its maximum CPU speed of 400MHz, 650MHz, or
933MHz. The Pentium III CPU requires a heatsink and fan. The Celeron CPUs only require a
heatsink.