Question about Acer Aspire 9300 Notebook
Hi. First take all the removable panels off the bottom of the laptop. Remove the RAM, wireless card, HDD, DVD drives. Remove the battery and mains power supply. The DVD drive will have a locking screw at it's back end on the base of the machine, carefully pull the drive out when released with it fully open so as not to break the front plastic cover. Open it manually with a paperclip end pushed in the hole on the front cover if necessary.
Now press and hold the power on button for about 1 minute. Reconnect a fully charged battery or the mains power supply and see if the machine starts. It will probably complain of no RAM and failed HDD but don't worry if it does. Now power down and refit the RAM. Power up again. The board should post and report failed HDD. If not one strip of ram may be faulty, try one at a time to isolate the bad one. If ok power off and refit the HDD. If all is ok, refit the remaining parts one by one powering off in between. If your motherboard is working it may come back to life this way and you have found the faulty part in the process. If all this fails and you have 2 flashes from the HDD light and a stable power light and or the main power button light comes on as soon as power is applied without pressing it then you likely have a faulty motherboard. On a final note for the above fault, total failure of the motherboard can occur when intermittent starting happens if the CPU fan is totally blocked by dust. This causes the entire machine to run too hot. A thick layer of dust is deposited over time on the INSIDE of the heatsink vane pack. It creates a total blockage to the airflow. It can be removed by opening the machine and cleaning manually or it can be extracted from the fan port with a vacuum cleaner (where you can see the fan blades on the bottom) Large lumps of dust can block the fan while doing this so a thin wire to pull dust clumps through the grille can be handy. Make sure all the dust is removed and the fan rotates freely before using the machine again. The symptom to this is very fast fan all the time instead of varying speed according to overall temperature and CPU workload.
Phew! Hope this hepls
Steve at Olive Country Computers in Spain
Posted on Feb 15, 2011
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Posted on Jan 02, 2017
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