Intel BLKDX58SO2 Speaker, Battery, Real-Time Clock, CPU and VR Hot LEDs, Sata Drive Activity LED

Desktop Board Features

CPU and VR Hot LEDs

The following red LEDs (see Figure 6) indicate the status of the processor and the board’s voltage regulation circuitry:

•The CPU LED (Figure 6, I) indicates an elevated temperature on the processor that could affect performance.

•The VR LED (Figure 6, J) indicates an elevated temperature in the processor voltage regulator circuit that could affect performance.

SATA Drive Activity LED

The blue Mass Storage LED (Figure 6, H) indicates activity of hard drives connected to the IOH and either of the discrete SATA controllers on the board.

Speaker

A speaker is mounted on the Desktop Board. The speaker provides audible error code (beep code) information during the Power-On Self-Test (POST). Refer to Appendix A for a description of the board’s beep codes.

Battery

A battery on the Desktop Board keeps the values in CMOS RAM and the clock current when the computer is turned off and disconnected from AC power. Go to page 58 for instructions on how to replace the battery.

Real-Time Clock

The Desktop Board has a time-of-day clock and 100-year calendar. The battery on the Desktop Board keeps the clock current when the computer is turned off.

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