The motherboard of gf 6 100+nf 4 100 chipset or nF550x chipset.

× 1300 256M graphics card or 7300GT.

160 or 80G hard disk

1G memory

17 Chunping

The above configuration is more than enough to play games, and the price will not be higher than 3500 yuan. If there is a suitable purchase channel, 3000 yuan is almost the same.

Ordinary routers and 16 switches will do. According to the number of network cables and crystal connectors you need in your computer room, buy a network clip. 1000 yuan is enough.