lhmclhmc 发表于 2020-7-6 13:36

论X270系列使用4A02扩展坞的烦恼-严重影响散热

ThinkPad X240 X250 X260 X270 T440 T440PT450 T460 T470 T450P T540P W540 L440 L540都可以使用的扩展坞
有两个型号:4A01及4A02,只是接口多少的不同。


刚好有X270及T460s,所以购买了一个4A02扩展坞。T460s使用还好。有点挡底部的散热孔。
但最近在X270上使用,感觉温度升高了10度不止,待机都要 50+ 的温度,很好奇是为啥。

然后我研究了一下:

这是X200的背面吸风口


侧面一点看,是这样。


扩展坞这里,接触的底部,是完全平的,没有风道。


X270与扩展坞合体以后,就只留下这么半条出风口。难怪温度会上升。


从底下看,就是这样。所以这个设计,令人着迷。

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
待机温度。平时的话是40+。



gilnumen 发表于 2020-7-6 13:45

所以后面很多机型出风口都改右边去了。

todayhigh 发表于 2020-7-6 13:56

这个设计の大迷惑 可能是因为扩展坞和主机不是一波人设计造成的...
这种扩展坞历代都是平底的 确实没有给左侧散热口留出空间
但是在早期的TP上 散热口不是在这里的 T4*/X4*系列的出风口在机身左侧的中部
看X41就会发现 左侧从后向前是DC In VGA USB 散热孔 当放上扩展坞时 正好挡住了电源和VGA这两个完全可以被扩展坞代替的东西
虽然这个设计在X6*就已经改了 但是扩展坞并没有跟着发生变化
更迷惑的是 到X230为止 散热系统都不是从底部进风的 所以扩展坞的平底并不会影响进风 至多是影响出风 所以那代扩展坞不改也就忍了 到了X240 增设了底部进风口之后 扩展坞明明换代了 但是这个设计还特喵的没改....

twin4d 发表于 2020-7-6 14:25

所以我换成了40AF。实在是本子热的受不了。

潘哒利亚 发表于 2020-7-6 14:29

gilnumen 发表于 2020-7-6 13:45
所以后面很多机型出风口都改右边去了。

终于找到把出风口改到右边的合理理由了

Angry派大星 发表于 2020-7-6 14:33

gilnumen 发表于 2020-7-6 13:45
所以后面很多机型出风口都改右边去了。

顺便砍掉底座扩展坞接口

lhmclhmc 发表于 2020-7-6 19:51

潘哒利亚 发表于 2020-7-6 14:29
终于找到把出风口改到右边的合理理由了

哈哈哈………

HaxOr 发表于 2020-7-6 19:53

被拓展坞挡住的那里不是有开通风口吗?

macrossyiyi 发表于 2020-7-6 22:12

2504这个位置是有散热孔的,正好对着T60的散热孔

不过就算这样,用了2504,也是妨碍散热,所以我T60用的时候,都是上盖打开1点点,这样好散热

lhmclhmc 发表于 2020-7-6 22:35

HaxOr 发表于 2020-7-6 19:53
被拓展坞挡住的那里不是有开通风口吗?

有。设计上应该是通风口。 但里面还有元件挡着。不通畅。 积热挺严重的。

流自新 发表于 2020-7-7 00:21

所以我到了这个夏天,就不用扩展坞了,用typec扩展坞 100多,安静多了
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