PCIe slot on NIC card
PCIe slot on NIC card
I've got a fresh 2Gbps internet setup. I'm swapping my built-in 1Gbps card for a TP link 2.5Gbps NIC using a 2.1 X1 PCIe slot. The HPz230 is still working great, even though it's an older model. I also have a dedicated 16GB card in the 4GB slot and connected the new NIC into the PCIe 2x4. Could this cause a bottleneck? Are both devices sending data to the CPU or is the NIC passing through the chipset instead?
It's a x1 card operating at PCIe 2.0 x1, delivering 4 gigabits per second through the motherboard. Source: https://en.wikipedia.org/wiki/PCI_Expres..._revisions
This article proposes placing the second slot in the PCH and the first slot in the CPU. Could you verify the markings on your motherboard? The link provided appears to be for an SFF model, but your unit might have the necessary labels. I’d try moving it into a CPU port if that’s feasible.
The remaining PCH bandwidth is being requested for additional purposes or services.
1 gbps equals 125 MB/s, 2 gbps reaches 250 MB/s... a single PCI-E 2.0 lane offers 500 MB/s, but after considering the overhead, the real speed is about 480 MB/s. That’s sufficient. Each motherboard slot has dedicated PCI-E lanes. The chipset sends data to the CPU and returns via DMI, which in LGA1150 is likely similar to a PCI-E 3.0 x4 setup (up to roughly 4 GB/s). For more details, see the service guide on page 8: https://www.levnapc.cz/ProductsFiles/hp-...ual-en.pdf
Thanks for sharing. It seems you're feeling frustrated lately. You mentioned not having any problems with the PCI slot and were unsure about the speeds. Double-checking those details might help clear things up.