Member Avatar for starband69

I have a dell Inspiron 8000 that is dead. Was working fine last time used. After pressing the power button The Hd light will flash a few times. There is a few sounds, And you can see a quick bleep in the screen and then nothing.
I have tried a different power supply, a different battery, removing the cd drive & 3.5 floppy.
This is just out of the blue it was working fine last time used. and this time it wont do anything. Anyone help!!

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  • Latest Post Latest Post by mrfuzzyface

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Brief, practical addendum that builds on the thread: since ’s Inspiron came back to life after a full teardown/reassembly, the fault was most likely intermittent (a contact, connector, or power‑rail/component problem) rather than a pure software issue. Below are focused checks and notes that weren’t fully covered in the replies and that help catch the problem if it happens again.

Stepwise checks to run next time (in order)

  1. Do a full power discharge: remove main battery and AC, hold the power button 30–60 seconds, then try booting from just AC.
  2. Minimal boot + memory swap: run with only CPU + one RAM stick (try each stick/slot). Reseating or swapping modules finds many intermittent POST failures.
  3. DC jack / adapter test: verify the adapter voltage with a multimeter and wiggle the jack while powered to spot intermittent contact.
  4. Visual inspection for power components: look for bulging/leaking capacitors or scorch marks around VRMs and the power jack.
  5. Record any LED blink / beep pattern and look it up on Dell’s diagnostic table — those patterns map to specific subsystems (memory, BIOS, power-rail, etc.).

These practical troubleshooting steps are standard laptop diagnostics and collect the evidence needed to decide whether to keep repairing or to replace the board. (ifixit.com)

What the symptoms usually mean and what to try next

  • Brief POST activity that then dies often points to intermittent power rails (bad caps, MOSFETs, or a cracked solder joint) or a failing DC jack. A successful reassembly often “fixes” the symptom when it temporarily re‑seats a connector or contact; if it returns, expect an intermittent hardware fault. Visual inspection and measuring board voltages are the next logical steps; long‑term fixes are component replacement or board swap, not reflows for most hobbyists. (blog.silverpc.hu)

References and repair resources

  • Dell Inspiron 8000 service/manuals and Inspiron diagnostic guides are useful for disassembly order and LED/beep code lookup. (manualslib.com)

Notes tied to this thread

  • The suggestions from and about power/BIOS checks and ’s comment on internal packs were on the right track; if the fault recurs, start with the hard power discharge and RAM-swap tests before deeper component-level work. If uncomfortable with board‑level voltmeters or soldering, document the symptoms and seek a technician — intermittent faults are the hardest to fix by trial alone.

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Member Avatar for mechbas

>>>last time used
which was how long ago?

Although you've tried a few possibilities there are still a lot of unknowns here. At this point it could still be anything. Maybe you could try another monitor next? More info is needed.

Member Avatar for bobbyraw

I have a dell Inspiron 8000 that is dead. Was working fine last time used. After pressing the power button The Hd light will flash a few times. There is a few sounds, And you can see a quick bleep in the screen and then nothing.
I have tried a different power supply, a different battery, removing the cd drive & 3.5 floppy.
This is just out of the blue it was working fine last time used. and this time it wont do anything. Anyone help!!

@ Starband, what type of sound. is it during the bios screen, when you initially push the power buttons. the last time it was used how was it turned off. does the light on the monitor comes on green or stays orange? Be as detailed as you can so that we can help

Member Avatar for starband69

Ok 1st this is a laptop. It was used 2 or 3 days prior and it worked fine. When you plug the power supply in the green light comes on. Now you press the power button and you can hear the 3.5 floppy make a noise, and the screen flickers.and the green HD light comes on for about 1 second, But nothing elese. I have removed the keyboard and checked all the plugs i can see, Removed heatsink and checked the processor for tightness. Everything seems to be in order. I have tried 3 different power supplies, 2 different batteries, I have hooked an external monitor to the back, I have removed the DVD rom, the 3.5 floppy, I have removed the hard drive and hooked to a USB adapter and checked to see if HD is bad. What have i not tried? Can the MOBO go out just like that no tale tale signs beforehand.

Member Avatar for bobbyraw

is the battery charged on the Laptop. let it remain on power for 2 hours then turn on. Some laptop will not power on if the battery is totally dead. Also can you check the CMOS battery.

Member Avatar for starband69

I let 2 different batteries charge in it until the green charge light goes out and still nothing. I will check the cmos battery

Member Avatar for starband69

Ok laptop is disassembled. What does the CMOS battery look like on this board? dont see anything that looks like a battery

Member Avatar for bobbyraw

about the size of a quarter, very shine and flat.

Member Avatar for caperjack

the battery most likely is not on the board itself , but plugged in via a small white 3 wire plug [like a small fan plug],the laptops i have the bios batters is rapped in yellow/red plastic and are attached to the underside of the palm rest area,or the bottom of the case in the same front area ,or i have seen them in the main battery storage area,but are almost all inside the case but not on the board like a regular computer ,

Member Avatar for starband69

Ok Guy's Thanks for all your Help. I completely Disassembled the laptop and left it on the bench overnight. I checked every plug and reassembled. Now it works fine. Dont know what i did but it works.

Member Avatar for mrfuzzyface

cmos battery is under palm rest have to take out all srews on bottom of laptop remove keybord then release the little catches on sides or palm rest with very small flat blade srewdriver or as I do with thumb nail once off turn upsidedown add remove the two little screws on metal plate lift and slid out turn over and will see cmos battery pack if not it is missing and should have a plug not used.
Also I just repaired one that was doing the same thing. the proccessor was bad. it takes a pentium3 can run 700mhz. 800mhz or as ii just used 1ghz.
do nopt need cmos to turn on just get error message that date & time or wrong also if pluged in do not need battery as this laptop will run pluged in and no power batter installed. KNOW THIS FROM DOING SO. STILL have 2 more to fix one is 8000 and one is 8100 both need screens a cmos battery replacements other wise run using XP professional SP2 on all doing so did not have to download or install drivers the OS did it all

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