Dell OptiPlex GX400 User Manual

Also see for OptiPlex GX400: Setup and quick reference guide Service manual Setup and quick reference guide

Contents

Dell OptiPlex GX400 User Manual Manual pdf 57 page image

Warning MessagesYour application programs or operating system generate warning messages to alert you to a possible problem and ask you to take an action before youcontinue. For example, before you format a diskette, a message may warn you that you can lose all data on the diskette as a way to protect againstinadvertently erasing or writing over the data. These warning messages usually interrupt the procedure and require you to respond by typing a y (yes) or n(no).Diagnostics MessagesWhen you run a test group or subtest in the Dell Diagnostics, an error message may result. These error messages are not covered in this section. Record themessage on a copy of your Diagnostics Checklist and contact Dell for technical assistance.Diagnostic IndicatorsIndicators are located on the front panel and back panel of the chassis. These indicators communicate diagnostic codes that can help you solve problems withyour system.Front-Panel IndicatorsThe following table lists the codes for the front panel diagnostic indicators, gives probable causes, and suggests corrective actions.1-2-1 Programmable interval timer Run the System Board Devices tests in the Dell Diagnostics, if possible.1-2-2 Direct memory access (DMA) initialization failure Run the System Board Devices tests in the Dell Diagnostics, if possible.1-2-3 DMA page register read/write failure Run the System Board Devices tests in the Dell Diagnostics, if possible.1-3 Video Memory Test failure Run the VESA/VGA Interface tests in the Dell Diagnostics.1-3-1through 2-4-4RIMMs not being properly identified or used See "System Memory Problems."3-1-1 Slave DMA register failure Run the System Board Devices tests in the Dell Diagnostics, if possible.3-1-2 Master DMA register failure Run the System Board Devices tests in the Dell Diagnostics, if possible.3-1-3 Master interrupt mask register failure Contact Dell for technical assistance.3-1-4 Slave interrupt mask register failure Contact Dell for technical assistance.3-2-2 Interrupt vector loading failure Contact Dell for technical assistance.3-2-4 Keyboard Controller Test failure Run the Keyboard tests in the Dell Diagnostics. Otherwise, contact Dell for technicalassistance.3-3-1 NVRAM power loss Run the System Board Devices tests in the Dell Diagnostics, if possible.3-3-2 NVRAM configuration Run the System Board Devices tests in the Dell Diagnostics, if possible.3-3-4 Video Memory Test failure Run the VESA/VGA Interface tests in the Dell Diagnostics.3-4-1 Screen initialization failure Run the VESA/VGA Interface tests in the Dell Diagnostics.3-4-2 Screen retrace failure Run the VESA/VGA Interface tests in the Dell Diagnostics.3-4-3 Search for video ROM failure Run the VESA/VGA Interface tests in the Dell Diagnostics.4-2-1 No timer tick Contact Dell for technical assistance.4-2-2 Shutdown failure Contact Dell for technical assistance.4-2-3 Gate A20 failure Contact Dell for technical assistance.4-2-4 Unexpected interrupt in protected mode Contact Dell for technical assistance.4-3-1 Memory failure above address 0FFFFh Run the System Memory tests in the Dell Diagnostics.4-3-3 Timer-chip counter 2 failure Contact Dell for technical assistance.4-3-4 Time-of-day clock stopped Contact Dell for technical assistance.4-4-1 Serial or parallel port test failure Run the Serial Ports and the Parallel Ports tests in the Dell Diagnostics.4-4-2 Failure to decompress code to shadowed memory Run the System Board Devices tests in the Dell Diagnostics.5-2-2-1 Mismatch Rambus dynamic random-access memory(RDRAM) device count; unsupported RIMM devicecount or technologyVerify that both RIMM sockets contain a RIMM or Rambus continuity module (RCM). If theproblem recurs, replace the RIMM in socket B (if any), then the RIMM in socket A. If theproblem is still not resolved, contact Dell for technical assistance.5-2-2-2 Mismatch channel pair See "System Memory Problems."5-2-2-3 RDRAM levelization failure Verify that both RIMM sockets contain a RIMM or RCM. If the problem recurs, replace theRIMM in socket B (if any), then the RIMM in socket A. If the problem is still not resolved,contact Dell for technical assistance.CAUTION: Before servicing any components inside your computer, see "Safety First—For You and Your Computer."Front-Panel Diagnostic Indicator CodesPowerIndicatorCodeHardDriveIndicatorCodeCause ActionSolid green N/A Power is on, and the computer is operatingnormally.No corrective action is required.Blinking green Blank The computer is in the suspended state(Windows 2000 only).Push and release the power button, move the mouse, orpress a key on the keyboard to bring the computer out ofthe suspended state.