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Another Lombard resurrected

Posted by: Big Ben on 2022-10-09 07:26:44 This is a story of an old Lombard 400MHz in a pretty bad shape, with tue infamous power led symptom and no boot. I decided to give a try today and reflowed the CU and here it is! A working Lombard! Unfortunately I have a second one pretty damaged too, and that one didn’t came back from the dead, green led stays one and won’t boot. But at least one is working and I could the best parts of the two to make a less damaged one! Here is the procedure is used: - remove the CPU card (obviously) - remove memory modules - remove the heatsink (carefully pry the mushroom shaped part - remove the heatsink support: it had small tabs going under the CPU on each non-curved sides - install the card on a circuit - with a air gun preheat the board to 200°C - Heat the CPU for few minutes at 300°C - let it cool down by itself - reassemble the heatsink - test it! I hope it will lasts! I’ll post photos of the reassembled beast

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