Specifications

Chapter 1 Setting Up the LittleBoard 550
8 QuickStart Guide LittleBoard 550
16) Connect the monitor and
power supply
• Connect the CRT monitor to the video cable connected to J5 on the
LittleBoard 550.
• Connect a power supply (AT, ATX, or lab supply) to the J10
connector on the LittleBoard 550 using the adapter provided.
NOTE The LittleBoard 550 only requires +5 volts externally to
operate. The +3.3 bus voltage can be provided through J10,
requiring a change in the power adapter provided.
17) Connect all support devices
to the power supply
• Ensure all support devices you have plugged into the LittleBoard 550
have good connections to the power supply (AT or ATX).
Applying Power to the LittleBoard 550
18) Check/Set the Power
Supply Input Voltage
• If the power supply module uses auto-ranging operation at
50/60Hz, skip this step.
• Check the input voltage switch on the power supply located on the
rear of the supply just below the power connector.
The input voltage switch typically has two positions: 115 or 230
volts – 115 volts is default position.
19) Power up the
LittleBoard 550
• Plug the CRT monitor’s power cord into an AC outlet and turn on
the monitor.
• Plug the power supply’s (AT or ATX) power cord into the AC outlet.
• Turn On the power supply (AT or ATX) before continuing.
20) Verify the LittleBoard 550
powers-up satisfactorily
• Verify the LittleBoard 550 passes POST successfully.
• If the desired operating system is not loaded on one of the boot
devices (floppy drive or CD-ROM) prior to power up, you will see
an error message “Disk boot failure, insert system disk and press
enter” near the end of the boot process. The boot process will stop,
allowing you to select from:
♦ Enter BIOS Setup using S for Setup or skip to Step 21.
♦ Press R to Reboot the system
♦ Turn off the power switch on the power supply (AT or ATX).
Connect a bootable device to the LittleBoard 550, reapply
power to the system, and then skip to Step 21.
NOTE Ampro does not recommend using a hard disk drive or CF
card with a preinstalled OS from another model computer
to boot the LittleBoard 550. This has proven to cause
problems or provide unreliable operation. Use a bootable
device (floppy or CD-ROM) to load the desired OS onto
the hard drive (or CF) and then the drivers, while still
attached to the LittleBoard 550. Refer to Step 23.
NOTE For the most current BIOS Information, refer to the Hardware
Release Notes provided as hard copy in the shipping container.