Dell OptiPlex 5070 Small Form Factor Service Manual - Page 69
Power-Supply Unit Built-in Self-Test
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Table 4. Amber LED blinking failures (continued) Amber LED state White LED state 2 4 System state Bad coin cell Table 5. States Under Host BIOS Control Amber LED state White LED state 2 5 2 6 System state BIOS state 1 BIOS state 2 2 7 BIOS state 3 3 1 BIOS state 4 3 2 BIOS state 5 3 3 BIOS state 6 3 4 BIOS state 7 3 5 BIOS state 8 3 6 BIOS state 9 3 7 BIOS state 10 Notes Bad coin cell - Row M of table 12.4 in SIO spec [40] Notes BIOS Post code (Old LED pattern 0001) Corrupt BIOS. BIOS Post code (Old LED pattern 0010) CPU config or CPU failure. BIOS Post code (Old LED pattern 0011) MEM config in process. Appropriate mem modules detected but failure has occurred. BIOS Post code (Old LED pattern 0100) Combine PCI device config or failure with video sub sytem config or failure. BIOS to eliminate 0101 video code. BIOS Post code (Old LED pattern 0110) Combine storage and USB config or failure. BIOS to eliminate 0111 USB code. BIOS Post code (Old LED pattern 1000) MEM config, no memory detected. BIOS Post code (Old LED pattern 1001) Fatal Motherboard error. BIOS Post code (Old LED pattern 1010) Mem config, modules incompatible or invalid config. BIOS Post code (Old LED pattern 1011) combine "Other pre-video activity and resource configuration codes. BIOS to eliminate 1100 code. BIOS Post code (Old LED pattern 1110) Other pre-post activity, routine subsequent to video init. Power-Supply Unit Built-in Self-Test Built-in Self-Test (BIST) helps determine if the power-supply unit is working. To run self-test diagnostics on the power-supply unit of a desktop or all-in-one computer, see the knowledge base article 000125179 at www.dell.com/support. Troubleshooting 69