GPU integrated with PCIe x8 connection following M.2 SSD installation
GPU integrated with PCIe x8 connection following M.2 SSD installation
System details R5 5600 Asus B350F Rx6800 pulse with M.2 slots x1, 970evo Sata x2, mx500, and Seagate BurugaCard Wi-Fi in an x4 slot. After connecting another 970evo using an adapter, only the second x16 slot operates at full speed, but the GPU starts to lag. There may be too few PCIe lanes. Would removing other drives help?
Remove the M.2 slot to restore full lane capacity for your graphics card
Place the components in the following sequence:
1. Install the GPU in the first 16-slot slot, occupying two PCIe X1 slots.
2. Mount the Wi-Fi card on the third PCIe X1 slot.
3. Insert the M.2 adapter card last.
The performance isn't optimal when using both the graphics card and the M.2 adaptor simultaneously. It seems you need to choose between them—either go with the graphics card (PCIe x16 slot 2) or the M.2 adaptor (PCIe x16 slot 3). The adapter also restricts airflow in slot 2 since it's near the graphics card.
The instructions suggest ambiguity about using both PCIE1_3 and PCIE16_3 together. For budget chipsets, this limitation applies—multiple slots can't be used simultaneously compared to premium options.
it's not only about affordable boards; the X670e chipset is available on ASUS boards too, using their M.2 adapters
PCIEX16_1 is the designated spot for the GPU, consistently. This setup connects the CPU directly with x16 PCIe 3.0 lanes. PCIEX16_2 will reroute both lanes to 8, making it ineffective for a true 16-lane configuration. PCIEX16_3 refers to the chipset and PCIe 2.0, sharing four lanes with PCIEX1_1 and PCIEX1_3. It’s frustrating how the naming is confusing. Onboard M2 ports are available on SATA ports 5 and 6. The recommended approach is: 1) Place your GPU in PCIEX16_1, 2) Insert your main M2 SSD into the onboard M2 slot, 3) Avoid adding extra SSDs. For WiFi, you’ll likely need to use the available PCIeX1 ports instead of X1_1 or X1_3—unless you’re using all SATA ports, in which case skip them. If you plan to use multiple SSDs, consider upgrading your motherboard to one that clearly marks it as not sharing PCIeX16 lanes. For instance, the B550 Phantom Gaming 4 includes three M2s, with one designated for WiFi, while premium boards often come with built-in WiFi via an E-Key M2 slot. Alternatively, opt for a higher-end board that supports WiFi directly, though these are usually just bundled solutions. Remember, using all M2 lanes on most boards—especially Intel ones—tends to mean the CPU handles the first SSD and the chipset manages the others, so bandwidth is shared. On AMD systems, there’s usually enough space for two SSDs, but their placement often limits true lane reallocation.