American Megatrends Super Voyager VLB-III, User Manual, Page: 130 / 138

Appendix B Upgrading Cache Memory
120
Appendix C
Heat and Power Consumption
Temperature Ranges
The following values are ambient temperatures inside the computer case.
The board temperatures reflect the 80486 CPU Heat dissipation
requirements because it will be the hottest component. Temperature
specifications vary with the CPU frequency.
Frequen
cy
Heat
Sink
Airflow
over
CPU
Airflow
over
other
compone
nts
Maximum
Ambient
Temperatur
e
20 or
25 MHz
NO 400
feet
per
minute
Not
critica
l
47
°
C.
33 MHz NO 400
feet
per
minute
Not
critica
l
36
°
C.
50 MHz
66 MHz
YES 200
feet
per
minute
Not
critica
l
50
°
C.
75 MHz
486DX4
YES 200
feet
per
minute
Not
critica
l
65
°
C.
100 MHz
486DX4
YES 200
feet
per
minute
Not
critica
l
65
°
C.
Humidity
The recommended humidity range for operation of the American Megatrends
Super Voyager VLB-III motherboard is 20% to 80% non-condensing.