Depending on motherboard architecture, however, the Gigabit Ethernet may not achieve its 1. The problem is how the Gigabit Ethernet chip is connected to the system. So, even though in theory Gigabit Ethernet can run fine on PCI bus, it is just to close to the bandwidth limit of the bus.
How can one tell which bus Gigabit Ethernet chip is connected to? There are three basic ways. The easiest way is to see if your motherboard is based on PCI Express bus. The third way is to go to the Gigabit Ethernet controller manufacturer website VIA, Marvell, 3Com, etc and look for the main specs for the model used on your motherboard.
The bus type should be discriminated there. This information is located on the motherboard specs page on the manufacturer website. Although Gigabit Ethernet original standard was developed for using standard Cat 5 cables, several companies recommend that Cat 5e cables to be used on Gigabit Ethernet networks for performance issues.
Normally, gigabit only devices came out when gigabit network first came out, or are for high end equipment only. As an example, 3com has a modular switch es , that has gigabit modules that only support mbps. Edit: Ooops If you want to read more, just go to a "major" networking vendor 3com, Bay Networks, Cisco, etc.
I think I understand it better. Glad to have helped. Unfortunately, it does not support full duplex. Just thought I'd mention it, because it goes against the common knowledge a little bit.
I do know, however, that even if it didn't you still can't use the other pairs for anything. Basically every jump in speed on the same media require more and more precision in cable materials quality and termination. The physics of the media are not changing, just the quality of implementation. So you have to terminate the pairs correctly and without stripping, nicking, or untwisting them too much.
I've seen the difference it can make when you do it incorrectly. A Fluke tester shows differences up to 9dB in signal headroom between proper termination or any small mistakes. That headroom could make a huge difference in real world performance. Improve this answer. Community Bot 1. Learner Learner 1 1 silver badge 9 9 bronze badges.
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Thread starter Spongebrain1 Start date Feb 13, Forums Networking Networking. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
Previous Next Sort by votes. Spongebrain1 Honorable. Feb 13, 5 0 10, 0. Nov 27, 1, 0 20, It's not the cabling that uses the wires, it's the networking standard being used, such as 10BaseT, BaseT, gigabit Ethernet, etc. The physical networking going on determines how many pairs of wires are used, the cabling just supplies the wiring along with other characteristics.
So it depends on what network you are running. Ok, thank you. That's what I was looking for. Of course I always terminate all 4 pair regardless. Have been working with satellite SMATV systems the past couple years and refocusing on the networking again. Aug 9, 23, 1, , 7,
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