ASUS AM1M-A Motherboard
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Socket AM1 processors have four PCI Express 2.0 lanes reserved for an external video card, and another four PCI Express 2.0 lanes for other devices (one of them for use with an Ethernet controller).
The ASUS AM1M-A comes with one PCI Express 2.0 x16 slot (working at x4) and two PCI Express 2.0 x1 slots, as shown in Figure 2.

