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New sata hd removed memory module three times still diagnostic lights 3 & 4?

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Not enough info. give unit model and details.

Posted on Apr 16, 2014

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SOURCE: My Dell Dimension 9150 is unstable. The Dell

Yes you can. Your best is to use the largest and best ram in the number one slot. I would remove ALL the ram and start with the 2 gig in the first slot - then add others until you get the error message - remove that one and keep the rest.

Posted on Mar 31, 2010

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Error light code 3 & 4 in front panels


Hi Carlos, error code 3 & 4 is caused by faulty RAM (Memory modules) installed in the PC. You could try the following to resolve the issue:

1. Open up the computer cover
2. Locate the memory module(s)
3. Remove them memory module(s)
4. Use a can of compressed air or spray contact cleaner onto the center of the DIMM connectors to clean all the contacts. Do NOT use a normal brush to clear dust away. Wait for 5minutes for the contact cleaner to dry.
5. Reseat the memory module(s)
6. Turn on the computer and check if codes 3 & 4 still light up. If it does not, it should boot into the Operating System.
7. If codes 3 & 4 continues to light up, you will need to run a memory diagnostic test to determine which of the memory module is faulty.

Sep 07, 2016 | Dell OPTIPLEX 960 MT Desktop Computer...

1 Answer

Why when I turn the motor off, the headlights and motor blower come on? (2000 Ford Windstar Lx)


The FEM (Forward Electronic Module) is defective....See image #1...This necessitates a trip to the dealer in that replacement requires a Ford Diagnostic Tool...See Removal and Installation instructions below...You may find one on EBay...

Front Electronic Module(FEM)
Removal and Installation

CAUTION: Prior to removal of the FEM, it is necessary to upload module configuration information to a diagnostic tool. This information needs to be downloaded into the new module once installed..

Disconnect the battery ground cable..
Remove the instrument panel lower steering columnopening cover.
Remove the bolts. Thumbnail 1

Remove the instrument panel opening cover reinforcement.
Remove the bolts. Thumbnail 2

Remove the front electronic module(FEM).
Disconnect the five electrical connectors.
Remove the three bolts. Thumbnail 3

CAUTION: Once the new module is installed, it is necessary to download the module configuration information from the diagnostic toolinto the new module.
To install, reverse the removal procedure.

IMAGE 1:
25698793-zdaaikjypgmbihdo2b135vzk-1-0.jpg
Cost is high, Around $500

saailer

May 16, 2015 | 2000 Ford Windstar

2 Answers

Dell xps 200 installed new hard drive


Hi,
I share information HDD back site small jumper available so you attach 1-2 and CD back side available jumper not connect any pin. Mother board auto find it and not any issue ok.

Thanks.
TechSupportMart Computer Support

Feb 14, 2014 | Dell Dimension 3000 PC Desktop

1 Answer

My pc 520 will not boot up numbers 4 & 5 light up with blank screen and buzing noise, how do i fix this


There are only 4 diagnostic LED lights. If you mean lights 3 and 4, that indicates you have a memory problem. Memory modules are detected, but a memory failure has occurred.
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.

Apr 08, 2013 | Dell Dimension Computers & Internet

1 Answer

My dell optiplex gx620 does not start and it shows no. 3 and 4 lights illuminated on its front . what could be the problem.?


One of your memory chips is bad.

Maybe your memory is bad or the memory slot is bad.

Remove the Power Cord, Open the Case and remove one of the memory chips. Set the chip aside then try rebooting the computer. If it boots, then you know the memory chip you set aside is bad so mark an x on it with an ink pen. If it fails to boot then move the chip to the next memory slot and try rebooting. If it fails take the chip out and set it aside, then put the other chip in and try booting it in both slots. If it boots, just to verify that the chip set aside is bad, mark an x on it and put it into the open memory chip slot and try booting.

Diagnostic Lights caution.gif CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located 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. 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. 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. If the computer malfunctions during the POST process, the pattern displayed on the LEDs may help identify where in the process the computer halted.
note.gif NOTE: The orientation of the diagnostic lights may vary depending on the system type. The diagnostic lights can appear either vertical or horizontal.

Light Pattern

Problem Description

Suggested Resolution

tools011.jpg
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.
Plug the computer into a working electrical outlet and press the power button.

tools013.jpg
A possible BIOS failure has occurred; the computer is in the recovery mode.
Run the BIOS Recovery utility, wait for recovery completion, and then restart the computer.

tools012.jpg
A possible processor failure has occurred.
Reinstall the processor and restart the computer.

tools014.jpg
Memory modules are detected, but a memory failure has occurred.

  • If you have one memory module installed, reinstall it and restart the computer. (see "Memory" for instructions on how to remove and install memory modules.)
  • 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 computer.
  • If the problem persists, contact Dell.

tools015.jpg
A possible graphics card failure has occurred.
  • If the computer has a graphics card, remove the card, reinstall it, and then restart the computer.
  • If the problem still exists, install a graphics card that you know works and restart the computer.
  • If the problem persists or the computer has integrated graphics, contact Dell.

tools016.jpg
A possible floppy or hard drive failure has occurred.
Reseat all power and data cables and restart the computer.

tools018.jpg
A possible USB failure has occurred.
Reinstall all USB devices, check cable connections, and then restart the computer.

tools019.jpg
No memory modules are detected.
  • If you have one memory module installed, reinstall it and restart the computer. (see "Memory" for instructions on how to remove and install memory modules.)
  • 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 computer.
  • If the problem persists, contact Dell.

tools020.jpg
Memory modules are detected, but a memory configuration or compatibility error exists.

tools021.jpg
An other failure has occurred.
This pattern also displays during System Setup and may not indicate a problem.
  • Ensure that the cables are properly connected to the system board from the hard drive, CD drive, and DVD drive.
  • Check the computer message that appears on your monitor screen.
  • If the problem persists, contact Dell.

tools022.jpg
After POST is complete, all four diagnostic lights turn green briefly before turning off to indicate normal operating condition.
None.

Jun 06, 2012 | Dell OptiPlex GX620 PC Desktop

1 Answer

I have a DFI LanParty NFII Ultra motherboard. I had to move the power supply to a different machine and have purchased a new one to drive the DFI system (Win Power) rated at 650w. The power standby...


It's the craziest thing, I'm looking dead at the Motherboard Manual for the DFI LanParty NFII Ultra B motherboard, and the diagnostic LED lights are Not referred to.

Looking at the view of the System Board, the LED lights are shown down by the CMOS Battery.
LED 1, 2, 3, and 4.

The manual indicates only two types of BIOS Beeps are listed;

1) One Long beep followed by Three Short beeps.
Video error has occurred and BIOS cannot initialize the video screen to display any additional information

2) Single Long beep
A DRAM error has occurred. {Problem with the Ram Memory modules}

The BIOS program is a Phoenix - Award BIOS, but doesn't indicate what version or date.

[ The motherboard manual is downloaded for free from here,

http://productsmanuals.com/computer-manuals/dfi-lanparty-nfii-ultra-b-system-board-user-manual

Go to > To view the Products Manual - or to Download it - just click HERE.
{Click on HERE}

Allow up to 30 seconds for the file to download.

Offhand I would say it is Ram Memory that is the problem. Remove the ram memory module/s, and clean the gold plated contact pins with a pencil eraser, then use air to remove the eraser dust.

However, in looking up for information on the diagnostic LED lights, (The info IS out there. Maybe on DFI's support website, but I couldn't find it), I see that if you are using a graphics card that requires an additional power cable, you'd better have that baby plugged in.

The motherboard won't work if the additional power cable isn't plugged into the graphics card.

Regards,
joecoolvette

Dec 06, 2010 | DFI LanParty NFII Ultra B Motherboard

1 Answer

D620 will power up. The lights come on, I can hear the cd Tom spin. But no hd light and no screen display. Plugging into a remote monitor also shows nothing. My first thoughts at hd or main board. Any...


Start taking your laptop apart piece by piece and test it after each removed component:
1. Remove the hard drive and test the laptop.
2. Remove the DVD drive and test the laptop.
3. Remove the wireless card and test the laptop.
4. Unplug the display panel from the motherboard/video card and test the laptop.
etc....
Continue taking it apart until you have only three major components connected: motherboard (with video card), processor, and memory. If you still experience the same problem, most likely it's bad motherboard.
By the way, before you start, try reconnecting the memory module. If you have two modules installed, try removing them one by one and test the laptop with each one separately.

Sep 23, 2010 | eMachines eMD620-5133 Notebook

1 Answer

1994 Chevrolet 2500 Trouble codes. I have a 94 Chevy 2500, it flashes error 3 across the dummy screen with the truck mileage. I hooked it up to a diagnostic code reader, I got the following codes: 12:...


DTC 12 -
When terminals "A" and "B" have been connected, the ignition switch turned to the "ON" position with the engine not operating, the MIL (Service Engine Soon) should flash DTC 12 three times consequently. This will be the following flash sequence: "flash, pause, flash-flash, pause, flash, pause, flash-flash, pause, flash, pause, flash-flash." DTC 12 indicates that the control module diagnostic system is operating properly. If DTC 12 is not indicated, and a fault is present within the diagnostic system itself, it should be addresses by consulting the appropriate diagnostic chart in this section.

The MIL (SES) will indicate a diagnostic trouble code (DTC) three times if a DTC is present, or it will simply continue to output DTC 12. If more than one DTC has been stored in the control module memory, the DTC(s) will be displayed from the lowest to the highest with each DTC being displayed three times.



DTC 32 - Exhaust Gas Recirculation (EGR) Error
EGR open command did not change the fuel mixture when the command was given during off idle operation. EGR opening should cause the mixture to be slightly richer because of the low oxygen content of the exhaust gas. EGR position signal is also monitored to verify EGR movement.

The EGR relies on a certain amount of exhaust back pressure to work properly. Now that you have lowered the back pressure, it can't work. Have you tried a new EGR valve? You may need a service manual with an EGR diagnostic chart to make sure, but I think the duals are the problem. Plus the O2 sensor is only looking at one side of engine instead of both.

Keep in midn this procedure to Clearing Diagnostic Trouble Codes:
To clear the DTC's from memory of the control module, either to determine if the malfunction will occur again or because the repair has been completed, the Tech 1 Scan Tool should be used to clear the DTC's. If a Tech 1 Scan Tool is not available the following must be perform'd when all repairs have been completed. This will allow all DTC's to be cleared:
1. Ignition "OFF."
2. Ground diagnostic terminal "A" to "B" of DLC (Data Link Connector).
3. Ignition "ON."
4. Fully apply brake pedal.
5.Fully apply accelerator pedal.
6. Check MIL (Service Engine Soon) for DTC 12.
7. Release brake pedal.
8. Release accelerator pedal.
9. Check MIL (Service Engine Soon) for DTC 12.
10. Turn ignition "OFF."
11. Remove Jumper from DLC connector.

NOTICE: To prevent control module damage, the key must be "OFF" when disconnecting or reconnecting module power.

Good luck.

Jun 30, 2010 | Chevrolet C3500 Cars & Trucks

2 Answers

I have dell optiplex gx 150 beeps 6 times and a and b led is amber and c and d led is green


the 6 beep codes will be in a specific timing i.e. two beeps, a space 2 more beeps, and another space and 2 more beeps.

Looks like it may be a memory problem according to the lights.

ad54556.gif Possible memory failure

Reseat all DIMMs and restart the system to retest.

Here is the link to the beep codes and diagnostic lights for your dell optiplex gx 150 HERE

The Beep codes are in Table 2 and the diagnostic lights are in Table 3.
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Apr 14, 2010 | Dell Computers & Internet

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