I ordered a single 16GB RAM module, and my laptop would not boot with the RAM in channel 0. I would get 40 seconds of nothing, then the side LEDs would flash white, 12 green flashes of diagnostics, then orange to indicate the post code flashing. Post code 0 and 2 (flash 1 and 3) would be blue while the rest were green.
Installing the RAM in channel 1 resolved the issue. I don't know if this is by design, or if channel 0 is damaged on mine, but it was definitely confusing for a bit!
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I ordered a single 16GB RAM module, and my laptop would not boot with the RAM in channel 0. I would get 40 seconds of nothing, then the side LEDs would flash white, 12 green flashes of diagnostics, then orange to indicate the post code flashing. Post code 0 and 2 (flash 1 and 3) would be blue while the rest were green.
Installing the RAM in channel 1 resolved the issue. I don't know if this is by design, or if channel 0 is damaged on mine, but it was definitely confusing for a bit!