Member Avatar for rickyis

Hi,guys
i have acer 1640 laptop.the problem is when i trying to instalint the xp on my laptop then laptop is hang after 2 minuts. i have changed the ram but still same problem. today i noticed the cooling fan of my laptop is not working. i checked the fan and cleen it. but problem is when i push the start button of laptop then fan run only once time with ful speed, but after a few second fan stoped. the fan is only runing when i push the star button. and i am unable to instal the xp. need help plz.

THANKS IN ADVANCE

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  • Latest Post Latest Post by sittas87

Dani AI

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Short summary and likely cause: the symptom you described, — XP install hangs after ~2 minutes while the CPU fan only spins briefly on power-up — strongly points to thermal shutdown (the CPU/ chipset is overheating) or a fan-power/control failure from the motherboard/embedded controller. and were right to focus on the fan; here are safer, more systematic diagnostics and next steps that avoid guessing.

  • Boot into BIOS (or leave the machine in BIOS setup) and watch for any "CPU fan" or temperature readout or error message. If the system stays running there while you watch temps for a couple minutes, record what you see.
  • Power down, remove battery and AC, then press-and-hold the power button 15–30 seconds to reset residual charge/EC state. Reconnect and try again.
  • Inspect the fan cable and connector for damaged wires, burnt traces, or loose pins. Manually spin the blades: roughness or binding means the motor/bearings are failing.
  • With a multimeter measure the DC voltage on the fan header when you power on (only if comfortable). If there is no voltage at the header, the fan will never run and the board/EC/power MOSFET is suspect. If voltage is present but the fan stalls, the fan motor is the problem.
  • If you lack a meter, test with a known-good donor fan or a regulated bench supply (do not use an unknown phone/AC adapter) so you avoid overvoltage.

If the fan is dead: replace it with the exact-replacement assembly (same connector and form factor). If the header has no power after the reset, the problem is likely board-level and needs repair or mainboard replacement — especially if the display also fails as noted, which can point to wider board faults.

Short-term workaround to finish the XP install: use a strong external fan/cooling pad blowing into the intake so the CPU stays cool long enough to complete installation. Do not run the laptop without a working heatsink/fan long-term. Take ESD precautions and, if unsure, get a local shop to diagnose board-level faults.

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Member Avatar for sittas87

Hey Bud wotz up
Ohk heres what you do.Open machine (only when you comfortable working inside) and disconect your fan.Run the fan at normal power(meaning not connected to lappy) If the fan runs well under good whilest connected straight to electricity than you fan is not broken,means theres lack of power(witch I doubt)However if the fan doesnt work throughout the staraight power connection than you should buy a new one
??

Member Avatar for lurk

Sittas87 is correct, you should open your laptop and remove the fan, then figure out how much power it needs (usually written on fan) and then find correct adapter (I guess most laptop fans are about 3-9v so a phone charger would be fine for testing). Just keep in mind that you should only do this when you're not tired and have clean working space around. If the fan is spinning fine when attached to phone charger then theres a problem in laptop's power system.

Member Avatar for henock

fan doesnt work and the monitor doesnt work the cpu works hard disk works is their a connection b/n the monitor and the fan its a laptop

Member Avatar for sittas87

hey Henock
Problem??details please

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