有时你需要在电脑外壳外处理硬件组件，比如主板，但是在有问题的硬件通电的情况下这样做安全吗？今天的超级用户问答帖子关注的是人们应该采取的预防措施。

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照片由马丘（Flickr）提供。

问题

超级用户读者misha256想知道在机箱外给主板通电是否安全：

I have a new motherboard which needs a BIOS update to support a new CPU. Thankfully, I have an old (compatible) CPU handy. My plan is to install the old CPU, update the BIOS, then install the new CPU. I would prefer not having to mount the motherboard in a case just to do the BIOS update bit.

Is it safe to power up the motherboard outside of its case? My understanding is that the case provides grounding for the motherboard. Could the lack of grounding be an issue?

在机箱外给主板通电安全吗？如果是这样，MISH256应该采取什么预防措施？

答案

超级用户贡献者mvp和Ricky为我们提供了答案。首先，mvp：

Yes, it should be safe. Just be sure to put your motherboard on something non-conductive, like a cardboard box, and it should not touch anything that conducts electricity, including your main computer case. I have done this a few times. If you stop by almost any computer shop, technicians do this sort of thing routinely.

接着是瑞奇的回答：

Yes, you can power up the motherboard outside of its case. Just take some precauti***, like laying a piece of cardboard underneath the board, and you are good to go.

Also, the human body contains a static charge, so ground the static by touching a grounded appliance or wiring a ground circuit. Static charge in the human body might damage the sensitive electronic components on the motherboard.

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