Dell OptiPlex 320 Quick Reference Manual

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Dell OptiPlex 320 Quick Reference Manual Manual pdf 37 page image

Quick Reference Guide 37Beep CodesYour computer might emit a series of beeps during start-up if the monitor cannot display errors orproblems. This series of beeps, called a beep code, identifies a problem. One possible beep code(code 1-3-1) consists of one beep, a burst of three beeps, and then one beep. This beep code tells youthat the computer encountered a memory problem.If your computer beeps during start-up:1 Write down the beep code.2 See "Dell Diagnostics" on page 30 to identify a more serious cause.3 Contact Dell for technical assistance. For information on contacting Dell, see your online User’sGuide.Code Cause Code Cause1-1-2 Microprocessor register failure 3-1-4 Slave interrupt mask register failure1-1-3 NVRAM read/write failure 3-2-2 Interrupt vector loading failure1-1-4 ROM BIOS checksum failure 3-2-4 Keyboard Controller test failure1-2-1 Programmable interval timer failure 3-3-1 NVRAM power loss1-2-2 DMA initialization failure 3-3-2 Invalid NVRAM configuration1-2-3 DMA page register read/writefailure3-3-4 Video Memory test failure1-3 Video Memory test failure 3-4-1 Screen initialization failure1-3-1 through 2-4-4 Memory not being properlyidentified or used3-4-2 Screen retrace failure3-1-1 Slave DMA register failure 3-4-3 Search for video ROM failure3-1-2 Master DMA register failure 4-2-1 No timer tick3-1-3 Master interrupt mask registerfailure4-2-2 Shutdown failure4-2-3 Gate A20 failure 4-4-1 Serial or parallel port test failure4-2-4 Unexpected interrupt in protectedmode4-4-2 Failure to decompress code toshadowed memory4-3-1 Memory failure above address0FFFFh4-4-3 Math-coprocessor test failure4-3-3 Timer-chip counter 2 failure 4-4-4 Cache test failure4-3-4 Time-of-day clock stopped