Member Avatar for d620_owner

A few days back the battery led started flashing continuously, while I was still using the laptop. I turned off the laptop immediatedly and noticed that the laptop was quite hot.

I let it cool down and powered it up after 20 minutes. This time the Power led came on, the wifi led blinked and went out, the hard drive led came on and I heard something like fan spinning, or the hard drive spinning(not sure whihc) and after about 3 seconds all went dead.

I checked the battery charge indicator and after pressing its button none of the LEDs lit up.
Now it has the same "3 second then dead" behavior with or without the dead battery, with power-supply plugged in.

So I borrowed my friend's D620 battery with charge indicator showing 5 green lights, and that has not changed a thing.

Any suggestions would be appreciated.

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  • Latest Post Latest Post by celena.spaulding

Dani AI

Generated

A concise diagnostic checklist and notes for a Latitude D620 that powers on briefly then immediately shuts off — built on ’s symptom and ’s smell question, and aware of ’s motherboard swap report.

  • Quick, safe checks first:

    • Verify the AC adapter light and printed output rating (most Dell laptop bricks are ~19–19.5V); confirm actual barrel voltage with a multimeter or try a known-good adapter of the same rating.
    • Remove main battery and try AC-only boot. Hold the power button ~15 seconds with battery and adapter removed to discharge caps before reassembly.
    • Visually inspect the DC jack area for looseness, bent center pin, burn marks, or melted plastic. A wobbly jack often produces intermittent power.

  • Minimal-boot isolation (helps narrow fault to power, RAM, or peripheral):

    • Remove HDD, optical drive, WiFi card and all USB/peripherals.
    • Reseat RAM or try a single known-good DIMM in each slot one at a time.
    • Check for any POST beeps or diagnostic LED patterns (document any blink/beep pattern).

  • Thermal / motherboard considerations:

    • Inspect fan and heatsink: seized fan, clogged fins, or an improperly seated heatsink can trigger immediate protection shutdown. Confirm fan connector is seated and fan spins when powered briefly.
    • For a replaced motherboard, confirm the board revision is correct for the D620, the CPU cooler is installed properly with thermal paste, and all fan/thermal sensor headers are connected.

  • Advanced/when to stop:

    • If comfortable and equipped, measure voltages at the DC jack and key power rails on the board; if not comfortable, stop and seek pro help. If there is any burn smell, visible damage, or smoking, do not power the unit again.

If these steps fail, the fault is often on-board (power rails, MOSFETs, shorted components) and typically needs bench repair or a guaranteed replacement board.

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Member Avatar for thepastimer

First of all, where was the laptop hot? Was there and sort of ozoney smell?

Member Avatar for celena.spaulding

did anyone solve this issue im syuck just replaced the motherboard 3-4 months ago then the above problem starting happening and im so aggrevated need some good advise thanks

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