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Joined 1 year ago
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Cake day: June 9th, 2023

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  • Adapter cards for one PCIe M.2 SSD are completely passive and work on every motherboard with PCIe. If the card has multiple M.2 slots, you need either a PCIe switch on the card or a motherboard that supports PCIe bifurcation.

    I upgraded an old machine that doesn’t have PCIe 3.0 or M.2 slots with a Samsung 950 Pro in an adapter card and I haven’t noticed any issues - the SSD only runs at PCIe 2.0 speeds, but that’s fast enough for me.

    Sometimes plugging a PCIe card into one slot will cause fewer or no lanes to be allocated to another slot, so you should check your motherboard’s manual before buying a new card.










  • For each number, I mark all cells where I know I can’t put it.

    If one block, column or row has only one possible cell where a number can be, I put it there and then update all cells where I now know I can’t put it anymore.

    This algorithm probably isn’t the fastest, but it’s easy to do manually and it has the advantage that you don’t need to backtrack.