a peg that slots into a hole and won't fall out if turned upside-down, etc

peg and slot   Dan peg and slot

The PCI Express graphics slot is identical to a normal PCI Express slot, with the exception that it has some architectural

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are there slot games that pay real money If you plan to drill it out then use a bit much smaller than the hole you wish to keep I would probably recommend hand drilling it too, PEG is technically just PCI Express Graphics your 16x lane slot to the CPU PEGPEG Slot = the 16x slot attached to the CPU's root complex