Member Avatar for hasna011

I have not turned on my laptop for about 2 months because I didnt have a charger, i charged it last night and it wouldnt turn on, even the fan wasnt running just the power light and the hard drive light blinking rapidly I thougth it was because the battery hasnt been charged in a long time so i let it charge overnight and when i woke up it was still the same. i hope the motherboard hasnt crashed or something. please help.

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Summary for the HP G71 340US thread (original report by ): laptop left unpowered for months, charged, and now shows only a rapidly blinking power LED and hard-drive LED. Fan does not spin and there is no POST sound or display. This pattern is an early power/initialization failure rather than a normal disk-access problem. The replies from , and correctly pointed toward basic checks; the checklist below expands those suggestions into a practical, ordered diagnostic sequence and safe precautions.

Recommended diagnostic sequence (least to more invasive):

  1. Power-discharge and isolate power sources: remove AC and battery, press-and-hold the power button ~20–30 seconds to discharge residual power, then reconnect AC (leave battery out) and attempt power-on. This clears stuck power rails that sometimes block fan/POST.
  2. Verify the AC adapter and jack: confirm the adapter LED (if present) and the label output; test adapter voltage with a multimeter or swap a known-good compatible adapter. Inspect the DC jack for looseness or damage.
  3. Minimal-boot isolation: remove all external devices, then remove the hard drive and optical drive so the board boots with minimal peripherals. Note any change in LED pattern or whether the fan starts.
  4. Memory isolation, stepwise: with power removed and ESD precautions, test one RAM module at a time in each slot (leave others out). A change in behaviour or a single-module success narrows the fault to RAM or a slot.
  5. CMOS reset and visual check: if accessible, remove the CMOS coin cell for a minute or use the clear-CMOS jumper. Inspect the board for obvious corrosion, swollen capacitors, or burn marks (humidity can cause shorts as @caperjack noted).
  6. Record blink/beep pattern precisely (count blinks, long vs short) and compare with HP diagnostic codes for the exact model; that pattern is a key identifier.

Cautions and final note: work on the laptop only with power removed and ESD protection; avoid forcing connectors. If none of the steps yield change, the problem most likely resides in the power subsystem or mainboard and professional repair or board replacement should be considered. This expands on ’s and ’s suggestions while adding safe, ordered tests to pinpoint the failure.

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Member Avatar for Rik_

What laptop is it?

Member Avatar for hasna011

HP G71 340US

Member Avatar for rajutech

It may be RAM issue. Is there BOIS bootscreen coming when you power on?
Any sound coming when you power on?

Edited by rajutech
Member Avatar for hasna011

No nothing coming on at all. No sound either.

Member Avatar for caperjack

sometimes when they sit ,the humity is so great ,that they sweat!
what i would first try is to remove and reinstall the ram chips ,and maybe even the harddrive ,just remove and reinstall to to make new contact with the motherboard slots

Member Avatar for hasna011

Thank you I will try that

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