hace 5 años
Greetings to all the companions of this forum.
First of all, I appreciate your time and attention to my case. A fujitsu a6110 laptop arrived at the workshop with the fault that when the charger was connected, it emitted a beep and the charger's power light went out. When I disarmed the laptop, it had a fake Charger pin contact, a fet and a short capacitor.
It was removed and a check was made on the plate to detect other shorts before replacing them. The shutdown of the charger and the beep were solved.
The thermal paste was changed to both the cpu and the gpu and the battery of bios, since this equipment is already about 8 years old.It proceeded to turn it on, only the motherboard with the charger, without peripherals. Only ram cpu and gpu memory.
However, in this process the fan turned without noise, after 2 seconds it turned off and the processor starts to heat up.
Later I connected the rest of the board and saw that the power LED is always on and the motherboard emits two beeps. I removed the ram memories and proceeded to turn on the card. In this case, the fan rotates harder without stopping and the scroll lock LED starts to flash. Which indicates that the card detects that there are no connected memories. I tried with other memories that I have and that I know they work, since I tried them on another old computer that I have here and there were no changes. I tried 2 memories, I changed slots. I tried only one slot, etc. And the problem remains the same. I measured voltages and with both memories or without memories it gives me the same values:
1.8v of the ram, 1.05 of the processor, 5.0v, 9 volts for charging the battery, 3.3v and 2.7v on the power button (standby voltage) .If I don't connect the ram, The CPU does not heat up. It only does it when the memories are.
Since the gpu and cpu share the heatsink, I can tell that the gpu is cold. The heat feels right where the processor is. In the lower part of the plate just below the micro the heat is not felt. Only above. I am fearing the problem is the processor. This equipment occupies an Intel core 2 duo t7250 micro in an mPGA479M socket. The motherboard gives me all the voltages, so I discard the card. I hope you can give me some advice on what else I can check this equipment and find a solution. in advance thank you very much for your help
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