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Troubleshooting Tools and Utilities . Dell™ OptiPlex™ 745 User's Guide Dell Diagnostics ... The diagnostic lights can appear either vertical or horizontal. Nov 17, 2010 · Monique, the numbered lights are diagnostic lights. They display codes that correspond to the machine's documentation to help with troubleshooting. If your machine is a dell, the 1 light probably means that something is up with your memory and the 3 and 4 lights could indicate a secondary memory failure. Jun 25, 2018 · Hello Guyz Today I'll Show You How You Can Fix Your PC issue Blinking Only 3 & 4 Light and Not Starting/Working, Amber Death. Usually it Occurs By The Spreading Of Dust or Mud in The RAM Sockets ... Jun 25, 2018 · Hello Guyz Today I'll Show You How You Can Fix Your PC issue Blinking Only 3 & 4 Light and Not Starting/Working, Amber Death. Usually it Occurs By The Spreading Of Dust or Mud in The RAM Sockets ... Troubleshooting Tools and Utilities . Dell™ OptiPlex™ 745 User's Guide Dell Diagnostics ... The diagnostic lights can appear either vertical or horizontal. From the link MrAdam sent, lights 1,3,4 on the GX620 indicates that a PCI bus failure has occurred. Instructions from Dell are to remove all cards and restart the computer to determine if a resource conflict exists. 4-4-3 Math-coprocessor test failure 4-4-4 Cache test failure Diagnostic Lights To help troubleshoot a problem, your computer has four lights labeled 1, 2, 3, and 4 on the bank panel. When the computer starts normally, the lights flash before turning off. If the computer malfunctions, the sequence of the lights help to identify the problem. Running diagnostics on it again. It did do this before (work for a bit), then when the user did something cpu/memory intensive, it hosed up. Btw, the power light was always blue with the 3 & 4 lights amber. Nov 20, 2016 · dell opetiplex memory problem 3 and 4 ask any questions about how to fix the problem. try this stuff it works . subscribe our kfirst look channel https://www... Jan 22, 2008 · 1 keeps on blinking while 3, and 4 are lit. I checked the diagnostic codes and it points to a memory issue. According to dell support, when lights 3, 4 are lit "Memory modules are detected, bu... Jul 24, 2009 · These are the top Dell diagnostic lights and their conditions that can prevent your system from booting. You may have different diagnostic lights and still be able to boot, but a lot of those problems can be quickly fixed once you boot up the computer. Forum discussion: Hey guys. Having issues with my mom's dell. At first when I checked it out last week lights 3 and 4 were lit on the indicator. The system was running two 1Ghz sticks. I took one ... Re: Dimension 3100 won't boot (diagnostic lights 3 & 4) Yes, motherboard replacement is an expensive conclusion to jump to. But the codes indicate a memory problem and you have already substituted memory (if you trust that the substitution was compatible). Diagnostic Lights Edit There are 4 diagnostic lights on the Dell 990 CPU numbered 1, 2, 3, and 4. In addition the power button can be blank, orange, or blue. Nov 27, 2018 · Dell Optiplex 780 Diagnostic Lights 2 3 4 Flashing Amber. masuzi November 27, 2018 Uncategorized No Comments. Why dell optiplex 780 its blinking orange light and 2 3 ... Dell Precision T3400 Quick Reference Manual . ... 20-21 cards slots, 15, 18 Dell Diagnostics, 41 CD-RW drive problems, 47 Dell support site, 8 diagnostic lights, 33 ... 3- Off 4- Off: System is on with no failures detected. This is actually a BIOS controlled state and is also S0e. 1- Off 2- Off 3- Off 4- Off: Windows Standby State. 1- Off 2- Off 3- Off 4- Off: Hibernate or Soft off. System plugged in, but either turned off or in Windows Hibernation State. 1- Off 2- Off 3-Solid 4- Off-Reserved: 1- Off 2- Off 3- Solid 4- Solid 13 diagnostic lights (4) Use the diagnostic lights to help you troubleshoot a problem with your computer (see "Diagnostic Lights" on page 33). 14 network link light The network link light is on when a good connection exists between a 10-Mbps, 100-Mbps, or 1000-Mbps (1-Gbps) network and the computer. Oct 17, 2013 · Dell Optiplex 390 came in with a no boot complaint. Got diagnostic light 3 and blue power led followed by immediate shutdown. Did the usual diagnostic procedures: different ram, psu, fan ... 4-4-3 Math-coprocessor test failure 4-4-4 Cache test failure Diagnostic Lights To help troubleshoot a problem, your computer has four lights labeled 1, 2, 3, and 4 on the bank panel. When the computer starts normally, the lights flash before turning off. If the computer malfunctions, the sequence of the lights help to identify the problem. Nov 27, 2018 · Dell Optiplex 780 Diagnostic Lights 2 3 4 Flashing Amber. masuzi November 27, 2018 Uncategorized No Comments. Why dell optiplex 780 its blinking orange light and 2 3 ... Re: Dimension 3100 won't boot (diagnostic lights 3 & 4) Yes, motherboard replacement is an expensive conclusion to jump to. But the codes indicate a memory problem and you have already substituted memory (if you trust that the substitution was compatible). Troubleshooting Tools and Utilities . Dell™ OptiPlex™ 745 User's Guide Dell Diagnostics ... The diagnostic lights can appear either vertical or horizontal. Jul 02, 2015 · How to possibly fix a PC that will turn on but will not beep and will not display anything on screen - Duration: 22:19. RodneyDickson 2,660,796 views To help you troubleshoot a problem, your computer has four diagnostic lights labeled "1," "2," "3," and "4" on the front panel. When the computer starts normally, the lights flash. If the POST portion of system boot completes successfully, all four lights display solid green. Jun 25, 2018 · Hello Guyz Today I'll Show You How You Can Fix Your PC issue Blinking Only 3 & 4 Light and Not Starting/Working, Amber Death. Usually it Occurs By The Spreading Of Dust or Mud in The RAM Sockets ... 2. Connect any telephone or network cables to your computer. 3. Connect your computer and all attached devices to their electrical outlets. 4. Turn on your computer. 5. Verify that the computer works correctly by running the Dell Diagnostics. See Dell Diagnostics. Page 5: Removing And Replacing Parts Dell optiplex 960 diagnostic lights 3 4 and solid amber light - Than you could then stephen DELL™ OPTIPLEX™ 960 TECHNICAL GUIDE 4 FRONT VIEW 1 Hard Drive Activity Light 7 Dell Optiplex 390 came in with a no boot complaint. 2. Connect any telephone or network cables to your computer. 3. Connect your computer and all attached devices to their electrical outlets. 4. Turn on your computer. 5. Verify that the computer works correctly by running the Dell Diagnostics. See Dell Diagnostics. Page 5: Removing And Replacing Parts Diagnostic Lights Edit There are 4 diagnostic lights on the Dell 990 CPU numbered 1, 2, 3, and 4. In addition the power button can be blank, orange, or blue. If it is installed and I connect a USB device to the card this is what happens: Orange flashing power light, there are no beeps,and no diagnostic lights lit. If nothing is plugged into the UBS card this is what happens: Solid green power light, no beeps, diagnostic lights 3 and 4 are lit. Jul 02, 2015 · How to possibly fix a PC that will turn on but will not beep and will not display anything on screen - Duration: 22:19. RodneyDickson 2,660,796 views View and Download Dell Precision Workstation 380 quick reference manual online. Dell Workstation Quick Reference Guide. Precision Workstation 380 Desktop pdf manual download. View and Download Dell OptiPlex 790 owner's manual online. Small Form Factor. OptiPlex 790 Desktop pdf manual download. Also for: Optiplex 790 mini-tower. 4-4-3 Math-coprocessor test failure 4-4-4 Cache test failure Diagnostic Lights To help troubleshoot a problem, your computer has four lights labeled 1, 2, 3, and 4 on the bank panel. When the computer starts normally, the lights flash before turning off. If the computer malfunctions, the sequence of the lights help to identify the problem. Apr 30, 2010 · Refer to the Dell website for your specific model, as these lights can vary from model to model. Dell BIOS Beep Codes. Beeps codes are audible beeps issued by the motherboard BIOS that help diagnose problems with hardware. Refer to the Dell website for your specific model. Some typical Dell BIOS beeps codes are: 3-3-4 is a video test failure. Diagnostic lights went through usual cycle but 3 & 4 remained on. After about 15secs, the system rebooted itself with the same response. I have tried removing all memory modules and rebooting with each of the three (4MB) in DIMM slot 1 but with the same result.