Editing HiNote Ultra Troubleshooting Guide (section)

== POST messages ==
DEC's advice for almost every POST message is to reset the factory defaults in Setup and reboot, and to run Setup for configuration errors.<ref name="ugb" />
{| class="wikitable styled-table" style="width:100%; text-align:left;"
|+ '''POST and boot messages (DEC appendix B)'''
! Message !! Type !! DEC's action
|-
| Faulty refresh circuit; ROM checksum incorrect; CMOS RAM test failed; DMA controller failed; interrupt controller failed; faulty DMA page registers || Fatal || Reset factory defaults and reboot
|-
| RAM error at location ''nnnn'' || Fatal || Power off and on; reset factory defaults
|-
| Clock not ticking correctly || Fatal || Reset factory defaults; the real-time clock is not running
|-
| No bootable floppy drive 0 installed || Fatal || Power down, check connections and the Floppy Dock, run Setup; replace the drive
|-
| Keyboard controller failure; keyboard failure || Fatal || Reset factory defaults; the keyboard or its controller may have failed
|-
| CMOS failure; CMOS checksum invalid; unexpected amount of memory || Warning || Run Setup
|-
| Time/Date corrupt || Warning || Run Setup and set the date and time
|-
| No interrupts from timer 0 || Warning || Reset factory defaults
|-
| Floppy disk track 0 failed; floppy controller failed || Warning || Run Setup; check connections
|-
| Hard disk error, failure, not configured, controller error or failure || Warning || Run Setup; check connections
|}
<ref name="ugb" />
The CMOS RAM and clock are kept by a CR1220 coin cell while the machine is off (DEC specifies a Sanyo part only); check it if these messages return after every power-off.<ref name="ugw" />