Question about Dell Dimension 5100 (D51L1) PC Desktop

1 Answer

Dell Dimension fails to switch on. Power lamp flashes. Resetting the bios allows switch on. Changed battery no difference. PC operates ok if left switched on

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Master
  • 1,179 Answers

I suggest going through my tip pertaining to this matter, it is entitled My Computer is not
turning on!!! Is it dead!!! No POST!!! this should guide you through the process and get
your PC going again.

Thanking you

Posted on Nov 10, 2010


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Forgot bios password for dell dimension 4700

Hello Scanluz, please try the following:

1. Power off your desktop, disconnect power cables, and remove the cover

2. locate the CMOS battery (it looks like a large watch battery). take it out, wait for about 10-15 seconds and put it back in...thats it. reconnect and boot your system.

3. If you can't find the CMOS battery, then check your pc manual for the bios jumper setting. usually you just remove it and wait for 10-15 seconds also but yours motherboard config may differ

Thanks, please let me know how it goes.

Jul 01, 2011 | Dell Dimension 4700 PC Desktop

1 Answer

Dell dimension 4550... no display on screen after a restart, took video card out and put it back in, picture came back until the next restart, now once again no display... what do I do?

sounds like a video card or slot issue. try to turn off the computer, disconnect the power cord, then remove the video card. try to blow dust from the video card slot using compressed air or use a vaccum. after that, press the power button for about 10 seconds to discharge any power left on the system board. reconnect the video card, reconnect the power cord and test. if same issue, try resetting BIOS defaults, try to update the chipset and BIOS. If both fails, try testing the video card on another system. if it is a PCI type of card, try testing it on another PCI slot on your system if available. if the card has same issue on another system, time to get a new one or use the onboard video card temporarily. Also, observe if video only disappears when Windows is already trying to load. if that is the case, either a video driver reinstall or operating system reinstall may also be needed.

Sep 06, 2010 | Dell Dimension 4550 PC Desktop

1 Answer

Dell Dimension 4700

Try resetting the BIOS, see if the drive re-detects
  1. Boot to BIOS F2
  2. turn on all 3 lock lights (NUMLOCK, CAPSLOCK< SCROLL LOCK)
  3. Press ALT+E, then ALT+F then ALT +B and system will reboot and re-detect drives
  4. If HDD is not detected, reseat data and power cable connections, try again
  5. if still no go, then HDD has likely failed

Mar 21, 2010 | Dell Dimension 4700 PC Desktop

1 Answer

I have an Dell OptiPlex GX150 and the cmos clock battery only operates for about 30 days. I have replaced batteries twice with batteries from different sources. tks Steve

First you should check that you cmos connection is clean, not just from dust ect, but is it possible that the original battery leaked? This would of caused a short circuit and the damage is what is causing the batteries to leak.
Flashing the CMOS is the next route, this is done by going to the site of the Motherboard Manufacturer, it will also explain how to Flash/Upgrade the CMOS.
If this doesnt solve it it, you need to check that the pins/Jumpers that control the BIOS, again the site for your motherboard will have a print where you can check that the pins are correct(check that the are fitted tightly first!)
Next, try resetting the jumper for the BIOS, usually located closest to the battery. remove it with the power off, power on and off, then enter the BIOS and load default settings. It will Beep while starting up (if allowed) this will not cause a problem, the beeps are only telling you there is a problem, but you already know the jumper settings are wrong.
If these fail, then its most like a short circuit, if this is the case, pack it all in a box and return to Dell.

Feb 17, 2010 | Dell OptiPlex GX150 PC Desktop

2 Answers

No power -- Dell Dimension 3000

There's a few things you can check, check your wall socket, make sure it is giving out good consisten electricity, not flickery. Make sure you have a surge protected plug box or ext. cord. You just can't buy any pwr supply because Dell has an extra pwr supply lead that goes to the mobo on many models. Standard supplies have one bundle that has a double row of wires on the connector that goes to the motherboard, and all the rest go to hard drive;CDrom drive;floppy;maybe a procesor fan. Check your connections, make sure they are proper, if that doesn't work, it could be something damaged on your motherboard and you might have to change it. Depending on how your power supply failed, it can actually do some damage on the other parts but check everything first before considering that.

Oct 14, 2009 | Dell Dimension 3000 PC Desktop

2 Answers

Can't boot up Dell 5100 Dimension, amber light flashes

When you mean the amber light, is that the blinking hard drive access light or the power light? Different cases have different colors on it. Mine has blue and green lights.

If you see the boot screen (bios) and then after it goes to boot, does it blink and hang?

This could be a simple operating system issue, hard drive or hardware/motherboard issue. If you could provide more information, that would help.

Jun 28, 2009 | Dell Dimension 5100 (D51L1) PC Desktop

2 Answers

Need to reset bios

Plese tell me what exactly what u did to upgrade the BIOS, if the BIOS is flashed wrongly, youy need to throw away your PC.

Apr 06, 2009 | Dell Dimension 4400 PC Desktop

1 Answer

Dell Dimension E510 Powers Up, Then Crashes

It's the processor or power supply. I cant be sure of which without checking it.

Check the fan over the processor heat sink to make sure its working cause it could mean that the processor is overheating If the fan turns and then it cuts off this could meant that the processor is dead. or the bios is corrupted. Try flashing the bios, there is a battery on the main boad, remove it. unplug the system first... when the battery is out press and hold the power button for 10 seconds then release. put the battery back in and try to turn it on..

If that fails then try a new power supply or one from another system to to check if the power supply is fine. YOu can aslo bridge the green and any black wire from the power supply's mainboard connector to see if the power supply runs. If all this fails then you may need to replace your processor,, I';d also recommend changing the power supply as well.

Nov 14, 2008 | Dell Computers & Internet

2 Answers

Dell Dimension E510 Problem

here are just a few things I would suspect.

One of those windows in the BIOS settings will display all the voltages at spec and the actual voltage. There should not be more than a 10% difference above or below. As you seem unafriad of your computer could you remove the left side and see what the make and model of the power supply is. It should give spec and voltages.

Second is your Cmos battery weak, was it individually packaged and is there a date on it, Try getting one from a different source to make sure you are getting a different lot or try a different brand. Look at the contacts on pc for the battery look for signs of oxidation. Look at the soldering to see if it looks damaged or bad, they can crack or break. Some one with a tester could check them to see if they are good. Of course, make sure you are connecting the battery with the correct polarity. Also, check for a leaky capacitor on the motherboard.
When you are taking out the cmos are you just immediately putting the new one in and then restarting? If so do this instead, unplug from power, remove cmos battery, leave it just like that for at least 30 mins. This allows a good power cycling. Then replace with good new battery (you can have the battery tested for strength) if battery has date codes you can check for freshness, you want to try to get a fresh one, after install of battery, plug in and try it. Sometimes a minimum 30 min power cycling resets things. Also, What else is installed and how much "stuff" is connected to the USB ports but is not self powered? Now the amber light ... Unplug computer, disconnect all usb/monitor/internet, open it, hold power button until green led on the inside on the motherboard turns off, pop out the battery. Plug in computer, hold power button for about 20 seconds (must reset BIOS), let up on power button, wait 10 seconds and push power button. The computer should turn on. Wait for it until activity seems stable (1 min. or so). Push powerbutton to shut off.

If this has worked you have proven that it's not the power supply (it turned on).

Go buy a new battery (CR2032 3 volt). Unplug computer, open it, hold power button until green led on the inside on the motherboard turns off, pop in new battery, plug in (you should notice the power button blinking amber again), hold power button until it stops blinking (about 20 sec....again must reset BIOS), wait 10 sec., push power button. the computer should turn on. Wait for it until activity seems stabe (1 min. or so). Push powerbutton to shut off.

Now, close case, plug in all usb/monitor/internet/etc. Power up computer. You'll get an internal floppy drive error. Push F2 (maybe F1) to get into the BIOS settings and go to "drives" and turn off the internal floppy. Save and exit. The computer should boot properly now.

This seems to be a big problem with the e510, my theory is that this one small battery is the root of most of these failures (as these computers usually fail after 1-2 years), not the power supply or the motherboard (heck, when you replace the motherboard it comes with a new one of these batteries...a several hundred dollar piece of hardware, with a $5 battery that will actually fix it). Those are a few things to look at for now.

Nov 05, 2008 | Dell Dimension 5150 (DIM515MIN) PC Desktop

3 Answers

NIC error/keyboard fuse failed

hear what u can do u can try resetting the bios or taking out the cmos battery for like 30 to 45 mins and the error u r getting will go away but if the NIC error keep accuring well there a problem with yr network card and for the hard drive when the pc is now booting up all dell normally comes with a testing device tool to get this testing device u can press F2 on when yr pc now going throught the post and just select hard drive testing...if it fines an error with the hard drive well u need to replace it....ok let me now if that work.

Dec 19, 2007 | Dell Dimension 2400 PC Desktop

Not finding what you are looking for?
Dell Dimension 5100 (D51L1) PC Desktop Logo

Related Topics:

27 people viewed this question

Ask a Question

Usually answered in minutes!

Top Dell Computers & Internet Experts

Les Dickinson
Les Dickinson

Level 3 Expert

18429 Answers

Alun Cox

Level 3 Expert

2678 Answers

mukhtar21 shaikh
mukhtar21 shaikh

Level 3 Expert

2022 Answers

Are you a Dell Computer and Internet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides