HP 8100 Technical Reference Guide: HP Compaq 8100 Elite Series Business Deskto - Page 47
System Status, Table 4-8., System Operational Status LED Indications
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System Support 4.5.3 System Status These systems provide a visual indication of system boot, ROM flash, and operational status through the power LED and internal speaker, as described in Table 4-8. . Table 4-8. System Operational Status LED Indications System Status PowerLED Beeps [2] Action Required S0: System on (normal operation) Steady green None None S1: Suspend Blinks green @ .5 Hz None None S3: Suspend to RAM Blinks green @ .5 Hz None None S4: Suspend to disk Off - clear None None S5: Soft off Off - clear None None Processor thermal shutdown Blinks red 2 times @ 1 Hz [1] 2 Check air flow, fans, heatsink Processor not seated / installed Blinks red 3 times @ 1 Hz [1] 3 Check processor presence/seating Power supply overload failure Blinks red 4 times @ 1 Hz [1] 4 Check system board problem [3], Memory error (pre-video) Blinks red 5 times @ 1 Hz [1] 5 Check DIMMs, system board Video error Blinks red 6 times @ 1 Hz [1] 6 Check graphics card or system board PCA failure detected by BIOS Blinks red 7 times @ 1 Hz [1] 7 (pre-video) Replace system board Invalid ROM checksum error Blinks red 8 times @ 1 Hz [1] 8 Reflash BIOS ROM Boot failure (after power on) Blinks red 9 times @ 1 Hz [1] 9 Check power supply, processor, sys. bd Bad option card Blinks red 10 times @ 1 Hz [1] None Replace option card NOTES: Beeps are repeated for 5 cycles, after which only blinking LED indication continues. [1] Repeated after 2 second pause. [2] Beeps are produced by the internal chassis speaker. [3] Check that CPU power connector P3 is plugged in. Technical Reference Guide www.hp.com 4-13