Dell Precision T1600 (Early 2011) - Manual (Page 75)

Code Cause
1-1-2 Microprocessor register failure
1-1-3 NVRAM
1-1-4 ROM BIOS checksum failure
1-2-1 Programmable interval timer
1-2-2 DMA initialization failure
1-2-3 DMA page register read/write failure
1-3-1 through 2-4-4 DIMMs not being properly identified or used
3-1-1 Slave DMA register failure
3-1-2 Master DMA register failure
3-1-3 Master interrupt mask register failure
3-1-4 Slave interrupt mask register failure
3-2-2 Interrupt vector loading failure
3-2-4 Keyboard Controller Test failure
3-3-1 NVRAM power loss
3-3-2 NVRAM configuration
3-3-4 Video Memory Test failure
3-4-1 Screen initialization failure
3-4-2 een retrace failure
3-4-3 Search for video ROM failure
4–2–1 No time tick
4–2–2 Shutdown failure
4–2–3 Gate A20 failure
4–2–4 Unexpected interrupt in protected mode
4–3–1 Memory failure above address 0FFFFh
4–3–3 Timer-chip counter 2 failure
4–3–4 Time-of-day clock stopped
4–4–1 Serial or parallel port test failure
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