Laptop originally worked but was bios locked. After unlocking, won't post but power rails are all present CPU gets lightly warm and fans spin normally for as long as I leave it on. Already pulled a bios from a donor board (same board model, 3662) no change it won't post. I have tried NVRAM reset, it doesn't respond. KG keyboard, SMC reset works. I checked all the SPI termination resistors, no problems, as I said laptop was working, no physical damage.
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