Error Code For Dell Optiplex 745
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reference guide to the OptiPlex Diagnostic Indicators Dell OptiPlex systems have a long history of built in diagnostic indicators. These can be audible beeps, power buttons that display different states and colours, specific dell optiplex 745 error codes 1 2 3 diagnostics LEDs or a combination of them all, in order to dell optiplex 745 beep codes indicate at which point during the Power On Self Test (POST) a system is having issues. The dell optiplex 745 specs following article is a reference guide to the codes available on each model and what those codes actually mean. These change through the various models and years. These
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indicators are merely a starting point to narrow down any troubleshooting you will carry out to identify the cause of your current issue. You can use this as a starting point to narrow down the proper troubleshooting guide you will need or you can contact technical support for further help and they will be looking for these dell optiplex 745 manual indicators as well. Table of Contents: Diagnostic LEDs for the OptiPlex series (Prior to 2005) Diagnostic LEDs for the OptiPlex Series (2005 to 2009) Diagnostic LEDs for the OptiPlex series (2009 to 2012) Diagnostic LEDs for the OptiPlex series (2012 to Present) OptiPlex Audible Beep Codes Note: For all the tables below, please remember that the diagnostic LEDs only serve as an indicator of the progress through the POST process. These LEDs do not indicate the problem that caused the POST routine to stop. Note: Please be aware that if your system completes POST without stopping on a particular error code and then gives a black screen, the most likely reason is that you are experiencing a No Boot issue and not a No POST issue at all. Back to Top 1. Diagnostic LEDs for the OptiPlex series (Prior to 2005) This series of systems had a block of A, B, C, D LEDs on the back of the chassis that lit up in Green and A
OptiPlex 745c Quick reference manual Dell OptiPlex 745c Quick Reference Manual: Diagnostic Lights Dell desktop computer quick reference guide. Hide thumbs Also See for OptiPlex 745c Administrator's manual - 20 pages 1 2 3 4 dell optiplex 745 motherboard 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
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20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 Diagnostic Lights CAUTION: Before you begin any
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of the procedures in this section, follow the safety instructions in the Product Information Guide. To help you troubleshoot a problem, your computer has four lights labeled "1," "2," "3," and "4" on the front or back panel. http://www.dell.com/support/article/us/en/04/SLN284978/en The lights can be "off" or green. When the computer starts normally, the patterns or codes on the lights change as the boot process completes. If the POST portion of system boot completes successfully, all four lights display solid green for a short time, and then turn off. If the computer malfunctions during the POST process, the pattern displayed on the LEDs may help identify where in the process the computer halted. If the computer malfunctions after https://www.manualslib.com/manual/36837/Dell-Optiplex-745c.html?page=25 a successful POST, the diagnostic lights do not indicate the cause of the problem. NOTE: The orientation of the diagnostic lights may vary depending on the system type. The diagnostic lights can be either vertically or horizontally oriented. Light Pattern Problem Description The computer is in a normal "off" condition, or a possible pre-BIOS failure has occurred. The diagnostic lights are not lit after the computer successfully boots to the operating system. A possible BIOS failure has occurred; the computer is in recovery mode. A possible processor failure has occurred. Memory modules are detected, but a memory failure has occurred. Suggested Resolution Plug the computer into a working electrical outlet and press the power button. Run the BIOS Recovery utility, wait for recovery completion, and then restart the computer. Reinstall the processor and restart the computer. For information on reinstalling the processor, see your online User's Guide. • If you have one memory module installed, reinstall it and restart the computer. For information on reinstalling memory modules, see your online User's Guide. • If you have two or more memory modules installed, remove the modules, reinstall one module, and then restart the computer. If the computer starts normally, reinstall an additional module. Continue until you have identified a faulty module or reinstalled all modules without error. • If available, install properly working memory of the same type into your compu
Member Messages: 22 Hello. I have a desktop Dell Optiplex 745 I'm trying to fix for a friend, and I cannot even get it to "boot up". Does anyone have any ideas to get me started? When I press the power button on the tower, the electricity runs and http://www.computerforum.com/threads/ram-problem-with-a-dell-optiplex-745.202524/ turns something on, including the fans, but the monitor doesn't show anything. I've tested the monitor, which is working. Specs on the tower: Dell Optiplex 745 Windows XP Professional Intel Pentium D processor, unknown RAM specs (unless you want me to open up the tower). Sorry I don't have more hardware/software info, but I didn't realize I was coming to a computer that wasn't fully booting up. Thank you for any help. Please let me know if I can provide any more information. lilbit13007, Oct 19, 2011 #1 dell optiplex claptonman New Member Messages: 5,480 You could try pulling one of the sticks out of the second slot and see what happens, then replace it with the other stick. If it boots up, then its a bad stick. If it doesn't, then something else is wrong, or both sticks are bad. claptonman, Oct 19, 2011 #2 voyagerfan99 Master of Turning Things Off and Back On Again Staff Member Messages: 22,024 If you pull all the memory out and turn it on it should shoot out a beep code dell optiplex 745 for no memory installed. If it doesn't do that then something else is wrong. voyagerfan99, Oct 19, 2011 #3 lilbit13007 New Member Messages: 22 Alright, sigh. I tried the two 512 MB Ram sticks in every permutation possible in the 4 DIMM slots (as a pair, individually, and lastly no sticks in at all just to ensure I heard the beep indicating no RAM memory was installed). I have the sore finger tips to prove it. Of course, only diagnostic lights 3 and 4 (out of 1, 2, 3, and 4) turn on, which the dell manual said that means: Memory modules are detected, but a memory failure has occurred. Obviously, no warranty. The computer was constantly turning itself off the past month or so, and now won't start. Is it possible a software issue caused something to happen, or is it just the hardware (either the RAM sticks or the DIMM slots on the motherboard)? Many thanks for the previous advice. I look forward to any further advice. lilbit13007, Oct 19, 2011 #4 voyagerfan99 Master of Turning Things Off and Back On Again Staff Member Messages: 22,024 Get some new PC2-5300 speed memory and try that then. The current sticks must be bad. voyagerfan99, Oct 19, 2011 #5 lion149 Member Messages: 555 Besides the fact that you posted this in the "momry and HDD" forum i would say you are knocking on the wrong door. The symptoms don't point to memory, try a PCI graphics card to verify that the onboard video isnt dead. lion149, Oct 20, 2011 #6 li