Why filling your M.2 slots might be throttling your GPU: The hidden limit of PCIe lanes Linux pc building PC components PC Optimization Technology Why filling your M.2 slots might be throttling your GPU: The hidden limit of PCIe lanes Sydney Butler February 22, 2026 Stop ignoring PCIe lanes: It's the one CPU spec that limits your entire PC Read More Read more about Why filling your M.2 slots might be throttling your GPU: The hidden limit of PCIe lanes