Trenton NTM6900, Техническое описание

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NTM6900 / WTM7026 Technical Reference Motherboard Installation
Port 80 Post Code LEDs
The Power On Self Test or POST Code LEDs are shown in the diagram below. These diagnostic LEDs
monitor the results of the various routines performed by the BIOS during the motherboard’s boot-up
process. If the motherboard fails a particular boot-up routine during POST, the resultant LEDs that remain
on are associated with the hexadecimal number for the specific error code. These specific error codes and
their associated hexadecimal values are listed in Appendix A – BIOS Messages.
S3, S4 and S5 Sleep State LEDs
LEDs 41, 42 and 47, indicate the three sleep states supported on the motherboard. When LED41 is on the
motherboard has entered the S5 sleep state, LED42 indicated S3 and LED47 turns on for the S4 sleep state.
In the S5 sleep state, the system shuts down complete and must be re-booted in order to recover. In S3, any
pending processor or chipset instructions as well as cache contents are lost, but system memory is retained.
The S4 state consumes less power than the S3 state to support writing any pending data to the system’s
hard drive. However, system memory contents are not retained in the S4 sleep state. Refer to the drawing
below for locations of the sleep state LEDs.
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