NIC 10Gb/s连接到PC的设置和选项
NIC 10Gb/s连接到PC的设置和选项
Hello, I'm looking for advice on which NIC to use with a desktop PC for PCIe connections. You mentioned avoiding Ethernet and preferring SFP over Ethernet.
I’d choose Intel NICs because they generally offer superior driver support and you can locate cards from other makers that utilize their chipset. Moreover, DAC provides lower latency compared to fiber since it involves converting light into an electronic signal.
For nearby connections, I’d prefer DAC (Direct Attach Cable) since it’s less likely to get harmed compared to fibre. For extended runs straight into a PC, 10G-BASE-T would be the choice. I’d favor fibre when linking switches, as it avoids the hassle of frequent plugging and unplugging, which worries me during regular PC maintenance. According to what I know, 10G-BASE-T is built specifically for devices that are often connected and disconnected.
Consider SFP or SFP+ based on your needs. For short distances under 100m, RJ-45 is sufficient. If you need SFP+, the Mellanox ConnectX-2 offers a budget-friendly option. A newer card could be better if you spot a good price, and the Broadcom BCM57810S is also worth mentioning.
The subject revolves around 10Gbit speeds, clearly pointing to SFP+ technology. While browsing, many complained about problems with cheaper cards, so I chose an Intel X520-DA1 for extra security. The main downside was paying twice as much in the UK compared to the cheaper Chinese options, thanks to pandemic-related import issues. Still, it was brand-new from eBay and half the cost of the Amazon version. I also managed to get the DAC from Amazon.
For personal use the ConnectX-2 cards have worked well. Adding a few $16 transceivers gives a reliable 10Gbit connection for years. I’ve used one in my VM server as a central hub for all my virtual machines. Still, my storage needs more power.
I believe they experienced high temperatures, and I thought switching from an Aquantia 10G-BASE-T to SFP+ might lower them, since I wasn’t confident in the airflow quality.
I usually attach a small fan to my AICs. Similar to other 10Gbps NICs I've dealt with, they tend to heat up. They don't require excessive airflow, but adding a tiny fan to the heatsink makes a big difference.
I keep this in mind, though I recently swapped the fan on the server, which boosted airflow significantly. It might not be needed anymore. It’s not about maintaining 10Gbit speeds constantly, so likely no big problem.