| Test | iperf3 (1 stream) | iperf3 (8 streams) | CPU usage (1 Gbps) | |------|------------------|--------------------|---------------------| | Windows 7 + Intel driver 12.15 | 935 Mbps | 940 Mbps | 9–12% | | Windows 10 + legacy 12.18 driver | 912 Mbps | 928 Mbps | 14–18% | | Linux (Ubuntu 20.04, e1000e) | 941 Mbps | 943 Mbps | 8–10% | | Linux (6.8 kernel, e1000e) | 918 Mbps | 935 Mbps | 11–13% |
This error usually means you downloaded the wrong package. The 82578DC is a PHY (physical layer) component often paired with an Intel controller. Ensure you are downloading the driver package specifically for the 82578 series, not the newer I217 or I219 series. intel 82578dc gigabit network driver
March 2025 Drivers for this chip are no longer maintained by Intel. Use at your own risk in production environments. | Test | iperf3 (1 stream) | iperf3
Device Manager shows “Ethernet Controller” with yellow bang, Code 28. Cause: Microsoft removed legacy Intel PRO/1000 drivers post-2017 due to security requirements (WDMA 2.0). Fix: Manually install the Intel PROSet 12.18.9.10 package (Windows 8.1 driver) using “Have Disk” method. Disable driver signature enforcement temporarily. March 2025 Drivers for this chip are no
: Uses a proprietary system interface to connect with the MAC. Operating Temp : Ranges from 0°C to 85°C .