Can a PCIe X1 fit in a mini PCIe slot?

I was reading the mPCIe pinout of BPI-R2 and noticed this: And according to the mPCIe , pin 48 should be + instead of +5v,

I recently found out the T5730 thin client does NOT use a standard pin-out for its PCIe 16x slot If I had this custom pin-out, or the actual

pcieslot 3x PCIe SSD 2280 IO Ports, Front: 2x USB 10Gbps, 1x Combo Kensington Lock slot, Kensington Lock slot Adapter, 330W, 330W

pcie x16 expansion slot x1, x4, x8, and x16 PCI Express slots DMA channels 8, can be used Device Pinout Figure 6 NI PCIe-6323 Pinout 1378 Some motherboards reserve