Specifications

Chapter 2 Product Overview
20 Reference Manual ReadyBoard 800
Environmental Specifications
Table 2-11 provides the most efficient operating and storage condition ranges required for this board.
Table 2-11. Environmental Requirements
Parameter Temperature Humidity
Model Operating Storage Operating Non-operating
800 MHz ULV
Celeron M
+0° to + 60° C
(32° to + 140° F)
–20° to +75° C
(–4° to +167° F)
5% to 95%
relative humidity,
non-condensing
5% to 95%
relative humidity,
non-condensing
1.0 GHz ULV
Celeron M
+0° to + 60° C
(32° to + 140° F)
–20° to +75° C
(–4° to +167° F)
5% to 95%
relative humidity,
non-condensing
5% to 95%
relative humidity,
non-condensing
1.4 GHz LV
Pentium M
+0° to + 60° C
(32° to + 140° F)
–20° to +75° C
(–4° to +167° F)
5% to 95%
relative humidity,
non-condensing
5% to 95%
relative humidity,
non-condensing
1.8 GHz
Pentium M
+0° to + 60° C
(32° to + 140° F)
–20° to +75° C
(–4° to +167° F)
5% to 95%
relative humidity,
non-condensing
5% to 95%
relative humidity,
non-condensing
Thermal/Cooling Requirements
The CPU, Graphics & Memory Hub (Northbridge), I/O Hub (Southbridge), Super I/O, and voltage
regulators are the sources of heat on the board. The ReadyBoard 800 is designed to operate at its
maximum CPU speed of 800 MHz, 1.0 GHz, 1.4 GHz, or 1.8 GHz. All processors (except 1.8 GHz)
and the Graphics & Memory Hub (Northbridge) require a heatsink, but no fan.
However, the 1.8 GHz CPU model requires a heatsink and fan. The CPU fan connector (J7) on the
ReadyBoard 800 requires a +12 volt fan. The +12 volts is routed as a pass through voltage from the
Power In (J2) connector to the CPU fan (J7) connector.
CAUTION To prevent damage to the 1.8 GHz CPU, you must supply +12 volts to
the Power In connector (J2) for the fan voltage on the CPU Fan
connector (J7). The +12 volt fan will only operate on the +12 volt pass
through voltage provided by Power In connector (J2).