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一般机箱风扇是装在机箱前部的,将冷空气从前部吸入*向主板上空,最后由电源风扇排出,形成对流。最好考虑空气流动方向问题 ,最佳方案是前后各装一个风扇,成对角方向分布,然后整个机箱散热效果就很好.机箱前部风扇对里面*,后部风扇对外面*。形成对流CPU、显卡、硬盘、光驱、北桥、南桥及板卡上的其他芯片时刻在加热机箱内的空气,如果不将这些热气排出箱外,将严重影响各部件散热,影响电脑的使用寿命。实测表明,装了机箱风扇的机箱比没装的机箱,箱内温度要低5~10℃,可明显改善箱内配件及电器元件的工作环境。一般机箱总有两个地方可以装风扇,前面的一般在硬盘托架处,后面的一般在电源下面,键盘口上方。售价较高的机箱出厂就已经装好1~2个风扇了。在安装机箱风扇时,应该遵循空气流动原理。如果安装的风扇前进后出,这样机箱内部风路从前到后很规则;如果风扇安装颠倒,后进前出或者后进前进的话,由于电源风扇也是出风的,会造成风路混乱。当只安装一个机箱风扇时,就看是为硬盘散热还是为整机散热,取决于你的散热需求。不少机箱出厂送的风扇是默认装在后面风扇位置上的,并且是抽风,这的确是有道理的。两种方法:1、看风扇的侧面,一般至少有一个侧面会有2个表示方向的箭头。一个水平的箭头表示叶片的旋转方向,一个垂直的箭头表示风向。2、看风扇叶片。叶片角度与风扇平面角度较小(几乎相切)的那一面,是进风口。叶片角度与风扇平面角度较大(一般45度以上)的那一面,是出风口。此外,如果通电以后,可以裁一小条卫生纸或者薄的稿纸,或者细线,放在风扇口,被吸进去就是进风口,被*出来就是出风口。
其实风扇正反对散热没什么影响,最多只能说风扇朝上那面是正说到这些安装方面CPU风扇的装载位置,和理线有关,自己认为如何更好理线就如何装
一般风扇的侧面都有个风向的箭头的,你自己找找,如果没有的话就接上电感觉下风往哪个方向*。
暂无
相对最合理的,也是大多数用户使用的方法,是上置电源向外*我们都知道,热空气是向上传播的,这是常识。因此,在机箱上面的空气温度多数情况下都要比机箱下面要高。在机箱上面安装电源,然后风扇向外*,比较符合科学规律。同样的道理,在机箱内部将外面的冷空气吸进来,有空气进来必定会形成气压,那么高位的空气就会自动排出。这个循环过程和高位向外*其实是差不多的,至少理论如此但实践过程中,高位向外*的散热效果明显比地位吸风的效果好。因此,我建议楼主使用常规方法,即将电源安装在上面,风扇向外*,这样更好至于4楼的那些图,这个机箱设计理念要想实现,必须通过辅助方法。可以看到,图中下面有风扇是向上*的。正规机箱是没有这样一个风扇的,完全靠空气自己流动,散热效果普遍不怎么样希望我的回答对你有帮助!
你说的两个方法都是错的。风扇有一个进风方向和出风方向。。进风是在散热器前面 出风是在散热器后面最佳散热方式是 风扇出风口朝上 或者朝后 朝上的话你的机箱顶部必须有开孔 或者电源上置朝后的话 你的电源是在上面还是下面都无所谓 机箱顶部有没有开孔也无所谓记着一点就行了 出风是向机箱外排风的。