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AMD Mainboard 7040 Series - Two lanes labeled as 15 #35
There are double PCIe link(x1 Lane 15) between P52 M.2 wlan/bt slot and APU on page 1. I think one should be USB 2.0, but you've forget to edit after copy-paste.
Agreed, page 4 does show USB 2.0 (port 6) and a single PCIe x1 (lane 15) on the connector which is correct for E key M.2.
However PCIe 2.0 also doesn't make much sense as lane 15 on Phoenix is a PCIe 4.0 interface. This would also bandwidth limit WiFi 7 upgrades like the Intel BE200 so I assume that's a typo as well? Although I wouldn't be surprised if it's only qualified for 3.0 speeds due to routing.
changed the title [-]Error in Mainboard_Interfaces_Schematic_7040_Series.pdf block diagram[/-][+]AMD Mainboard 7040 Series - Two lanes labeled as 15[/+]on Oct 18, 2025
However PCIe 2.0 also doesn't make much sense as lane 15 on Phoenix is a PCIe 4.0 interface. This would also bandwidth limit WiFi 7 upgrades like the Intel BE200 so I assume that's a typo as well? Although I wouldn't be surprised if it's only qualified for 3.0 speeds due to routing.
It's PCIe Gen2 x4, which has a theoretical bandwidth of 2 GByte/s or 16 GBit/s. Plenty fast for WiFi
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WizardTim commentedon Apr 9, 2024
Agreed, page 4 does show USB 2.0 (port 6) and a single PCIe x1 (lane 15) on the connector which is correct for E key M.2.
However PCIe 2.0 also doesn't make much sense as lane 15 on Phoenix is a PCIe 4.0 interface. This would also bandwidth limit WiFi 7 upgrades like the Intel BE200 so I assume that's a typo as well? Although I wouldn't be surprised if it's only qualified for 3.0 speeds due to routing.
KosmX commentedon Aug 19, 2024
and BT is on this USB not on PCIe
[-]Error in Mainboard_Interfaces_Schematic_7040_Series.pdf block diagram[/-][+]AMD Mainboard 7040 Series - Two lanes labeled as 15[/+]JohnAZoidberg commentedon Oct 18, 2025
It's PCIe Gen2 x4, which has a theoretical bandwidth of 2 GByte/s or 16 GBit/s. Plenty fast for WiFi