Member Avatar for otengkwaku

Hi guys i need an urgent help. i have been givien an acer aspirs 5516 laptop to repair but i am facing some problem.

The laptop has have water poured on it. but when you boot it the power LED comes on and the fan start to run for some time.
after two secound the fun dies out and the LED stays on. but the laptop don't boot what can be the problem and how do i repair it. this is urgent.

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  • Latest Post Latest Post by JorgeM

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Building on suggestions from and , here are targeted, board‑level checks and safety notes that the thread hasn’t covered yet. These focus on power-delivery failures and ionic/short conditions that commonly follow liquid spills and cause the brief‑spin/LED‑on symptom.

First, isolate power: remove the battery and AC adapter, then press-and-hold the power button ~30 seconds to discharge residual capacitors. Remove the CMOS/real‑time clock battery if you can. Do not attempt live troubleshooting with obvious contamination present — powering a wet board risks further shorts.

Key diagnostic steps (multimeter required): verify the AC adapter voltage at the DC jack, then check continuity at the board’s main SMD fuse (usually near the jack). Measure the main rails (after power-up, briefly if necessary) — if 3.3V/5V/12V rails collapse or show near‑zero resistance to ground, expect a shorted regulator/MOSFET or a corroded trace. A blown or open main fuse is a clue that something downstream is shorting; replacing the fuse without locating the short will blow it again.

Visual and targeted inspection: look for green/white ionic residue, darkened or cracked components, and swollen capacitors around the DC‑in/VRM area. If residue exists, removal with high‑concentration isopropyl alcohol and a soft brush is the usual next step, followed by thorough drying. For advanced isolation, brief power‑on tests combined with a non‑contact thermal probe or freeze‑spray can reveal a hot short (use extreme caution).

If board‑level rework (SMD replacement, regulator/MOSFETs) is needed and you don’t have hot‑air or board repair experience, consider a professional shop — on an older Aspire 5516 a motherboard replacement can be more cost‑effective than extensive repairs.

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Member Avatar for emilo35

Okay, so it is powered. Can you see anything on the screen? It may be the graphics card that doesn't respond. Try removing it (if possible), drying and cleaning it an re-insert. If that doesn't work, try booting with another graphics card (again if possible)

Member Avatar for JorgeM

Does the fan appear to be running at normal speed? Open the laptop and inspect the motherboard. Make sure nothing is still wet inside of the laptop. If the fan is not operating at normal speed, the CPU will quickly overheat and the computer will not boot.

Make sure there isnt any water between the RAM modules either.

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