Juniper Systems Allegro DOS Manual - Manual (Page 189)

MS-DOS Page 5-29
❏ PC Card Suspend: On or Off
This setting determines whether the PC card remains powered on
when the system is suspended, allowing ATA Flash cards and other I/
O cards to operate in Suspend/Resume mode. If you are using one of
these cards and want to use Suspend/Resume mode, Select “On” for
this setting. For SRAM cards, this can be set to "Off."
❏ CPU Performance: Hyper, High, Medium, Low, Miser
This function sets the 486 processor clock speed for varying levels of
power/performance. When the processor runs faster, it requires more
power and drains the battery more quickly. For maximum time
between battery charges, set this function to the lowest level that still
gives adequate performance for your application. If battery charge is
not a concern, set Performance to “High” or “Hyper.”
❏ Power Manager: On or Off
The Power Manager can help extend battery life by automatically
speeding up and slowing down the 486 processor based on system
activity. Activities include key presses, serial port transfers, and video
updates. The Power Manager should work fine for most applications,
but in some cases it may need to be turned “Off.” For example, for
applications that control their own power management, we
recommend that you set the Power Manager to “Off.”
When the Power Manager is “Off,” the processor runs at the same
speed all the time regardless of activity. The following table gives
clock speeds in MHz for the five performance levels with the Power
Manager “On” or “Off.”
Performance Setting Power Manager On Power Manager Off
Processing/Idle
Hyper 100/4 66
High 66/4 33
Medium 33/2 16
Low 16/1 8
Miser 8/1 2
❖ Note: When alkaline batteries are used, the processor speed is limited to 33
MHz for all settings. When the alkaline batteries are low, the maximum speed
drops to 16 MHz.