Member Avatar for fspac

Hello all,
This is my first time to daniweb but from other threads I've found everyone is extremely nice and helpful...hopefully you can help me. Basically I have a Dell Inspiron 8000 that is dead as a door nail. No lights, fans, noises, nothing. I've tried different outlets and power-cords but that is about the extent of what I can think to do. Is there any basic troubleshooting protocols out there to see what is wrong? At this point I'm not expecting a whole lot so I'm definitely willing to rip the thing apart but I have no idea what to do once I get in there. Thanks in advance to anyone who can lend a hand.

Peter

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OP summary and where the thread already points: reports an Inspiron 8000 completely dead (no LEDs, fans, or activity). Replies from and raised adapter/battery checks and power-input inspection; noted that adapter-brick LED behavior (blink/dim) often signals a motherboard short. The notes below extend those ideas with practical, non-redundant diagnostics and safe, low-cost next steps for someone willing to open the machine.

Start with low-risk checks and visual inspection. With both battery and AC removed, press-and-hold the power button ~30 seconds to discharge residual charge. Open the case and look for obvious damage: bulging or leaking capacitors, burn/heat marks around the DC jack, cracked solder joints where the jack or power components attach, and any loose or corroded cable connectors. Many Inspiron-era boards put a tiny SMD fuse or fusible resistor near the jack—this is a common, cheap failure point.

Targeted electrical checks (for someone comfortable with a digital multimeter). With the adapter connected but no battery, measure DC at the jack and at the motherboard input rail near the fuse/regulator; voltage at the jack but not on the board suggests an open fuse or broken trace. A near-short (very low resistance) from the main rail to ground points to a failed regulator/MOSFET or a shorted downstream component. Isolate the short by removing nonessential modules (HDD, optical drive, wifi, PC cards, RAM) and testing again; disappearance of the short identifies the subsystem to inspect further.

Repair options and cautions. Replace SMD fuses or the barrel jack if cracked; reflowing broken solder pads can restore contact if done with proper tools and ESD precautions. Full board replacement is usually the expensive option; donor boards or jack assemblies from parts sellers can be cost-effective. Always work with battery and mains disconnected when soldering, use ESD protection, and avoid live-soldering unless experienced. Useful findings to record when seeking further help: adapter-brick LED behavior, measured DC voltages, continuity readings on the SMD fuse, and any visible board damage.

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Member Avatar for ramjo

Have you checked the power input on the motheboard and also is the power flowing in the laptop

Member Avatar for fspac

Thank you for your reply! I should have mentioned that I'm good with computers, but I'm not very technical. How would I do both those things?

Member Avatar for fren

Borrow and try AC power adapter of the same type or use multitester to check the output voltage of your AC power adapter or send it to a store and test it.

Member Avatar for ramjo

Try fren's idea its a really good one also remove the battery and test whether it working also to determine if it's supplying power

Member Avatar for DellOutreach

Hello,

This is Richard from Dell's Online Community Outreach group. I am curious about the 8000 no power issue. Try the following and report back the results.

Unplug the AC power adapter from the computer and the wall. You will notice that the light (LED) on the AC adapter brick will go out (it may have already been out). Now plug the AC adapter back into the wall. The AC adapter brick light should come back on. For the next step, try to keep your eye on that adapter light while attaching the power adapter into the computer. When you perform the steps, check if the adapter light blinks, flickers, dims, or goes out.

If the AC adapter LED light did blink, flicker, dim, or go out and the computer itself has no lights at all coming on, then motherboard most likely needs to be replaced.

Regards,
Richard B
Dell Online Community Outreach

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