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Chapter 2 Product Overview
12 Reference Manual MightyBoard 821
Operating configurations:
• In-rush operating configuration includes 512MB DDR RAM, ATX power, CRT monitor, two SATA
HDDs and one IDE HDD each with WinXP Pro, keyboard and mouse.
• Idle operating configuration includes the same items as the in-rush configuration.
• BIT* = Burn-In-Test. Operating configuration includes Idle configuration as well as one serial loop-
back, one parallel port with loop-back, two Ethernet connections, and four external USB flash drives.
Environmental Specifications
Table 2-7 provides the most efficient operating and storage condition ranges required for this board.
Thermal/Cooling Requirements
The CPU, Memory Hub (Northbridge), I/O Hub (Southbridge), and voltage regulators are the sources of
heat on the board. The MightyBoard 821 is designed to operate at its maximum CPU speed of 2.0GHz or
1.5GHz. Both CPU versions (Celeron M or Pentium M) and the Memory Hub (Northbridge) require a
heatsink with a fan.
Table 2-6. System Power Requirements (2.0 GHz CPU)
Parameter +12.0VDC
In-rush Current
(Typical)
Max: 5.84A (70.08W)
Min: 0.20A (2.40W)
Idle 0.97A (11.65W)
BIT* Current
(Typical)
1.33A (16.00W)
Table 2-7. Environmental Requirements
Parameter 1.5GHz Celeron M Conditions 2.0GHz Pentium M Conditions
Temperature
Operating 0° to +60°C
(+32° to +140°F)
0° to +60°C
(+32° to +140°F)
Storage –20° to +75°C
(–4° to +167°F)
–20° to +75°C
(–4° to +167°F)
Humidity
Operating 5% to 90%
relative humidity,
non-condensing
5% to 90%
relative humidity,
non-condensing
Non-operating 5% to 95%
relative humidity,
non-condensing
5% to 95%
relative humidity,
non-condensing