春末夏至,天气逐渐升温。运行300小时左右的投影机风扇噪声开始影响观影体验。因为购买的是国行版本,于是联系售后,客服表示清灰、风扇声音大不属于保修范围内,需要另外收费。于是坚定了自己换风扇的决定。经过网上简单搜索,发现一张更换风扇的帖子,遂根据网帖购买所需替换的风扇。没想到开始拆机时发现和帖子上面的拆机方法不一样,拆到最后发现国行W1070机器里面只有2个风扇(其中一个是在主板下面,贴着铝片),和非国行的3个风扇不一样。 

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Firmware is the piece of software that acts as an interface between the hardware(motherboard) and the Operating System. Legacy Mode refers to BIOS firmware. Basic Input/Output System(BIOS) was the first popular firmware for desktop PC introduced in 1975 by IBM for its CP/M OS. Even though it is still widely present, computers have evolved tremendously and BIOS is unable to provide advanced features of modern hardware.

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CentOS环境

1. 安装pdnsd服务

wget http://members.home.nl/p.a.rombouts/pdnsd/releases/pdnsd-1.2.9a-par_sl6.x86_64.rpm
yum install pdnsd-1.2.9a-par_sl6.x86_64.rpm
cp /etc/pdnsd.conf.sample /etc/pdnsd.conf

2. 编辑 /etc/pdnsd.conf,粘帖以下内容:

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