双ram口多模块存储器

If you are performing your first ever RAM upgrade, then watching a small piece suddenly “chip off” of a RAM module can be a very worrisome event. But is it as bad as it looks or is the RAM module still usable? Today’s SuperUser Q&A post has the answer to a worried reader’s question.

如果您正在执行有史以来的首次RAM升级，那么看着一小块RAM模块突然“脱落”可能是一件非常令人担忧的事情。 但是它看起来是否很糟糕，还是RAM模块仍然可用？ 今天的《超级用户问答》帖子解答了一个担心的读者的问题。

Today’s Question & Answer session comes to us courtesy of SuperUser—a subdivision of Stack Exchange, a community-driven grouping of Q&A web sites.

今天的“问答”环节由SuperUser提供，它是Stack Exchange的一个分支，该社区是由社区驱动的Q＆A网站分组。

问题 (The Question)

SuperUser reader m-oliv wants to know what the little gray-capped things on RAM modules are:

超级用户阅读器m-oliv想知道RAM模块上的灰色小框是什么：

I was upgrading the RAM on my laptop and, after removing a RAM module, one of the little gray-capped things (circled in red in the image below) came off. Can someone please tell me what these things are and, if it is a potential danger to my laptop, should I replace the RAM module that had the piece knocked loose?

我正在升级笔记本电脑上的RAM，然后在卸下RAM模块后，出现了一些灰色的小东西(下图中用红色圆圈圈出)之一。 有人可以告诉我这些东西是什么，如果这对我的笔记本电脑有潜在的危险，我是否应该更换被摔坏的RAM模块？

What are the little gray-capped things on RAM modules?

RAM模块上的灰色小东西是什么？

答案 (The Answer)

SuperUser contributors Ruscal and Mokubai have the answer for us. First up, Ruscal:

超级用户贡献者Ruscal和Mokubai为我们找到了答案。 首先，Ruscal：

That is most likely a capacitor. While not dangerous in the traditional sense, it is necessary for the proper and consistent functionality of the RAM module. So yes, you should consider this module busted and replace it. A decoupling capacitor acts as a noise filter that will help clean signals on the module, but without it, signal noise could cause bits to flip improperly/unexpectedly.

那很可能是一个电容器。 尽管从传统意义上讲不是危险的，但RAM模块的正确且一致的功能是必需的。 因此，是的，您应该考虑将此模块拆除并更换它。 去耦电容器用作噪声滤波器，有助于清除模块上的信号，但如果没有它，信号噪声可能会导致位错误地/意外地翻转。

While that will not fry your computer, it could cause “strangeness” in your programs or operating system, such as hiccups in operation, bad data saves, or even full system crashes. If the computer is not in an electrically noisy environment, you may not even notice a difference. That said, I would still replace it as soon as I could.

虽然这不会使您的计算机混乱，但可能会导致程序或操作系统出现“奇怪”现象，例如运行中出现打ic，保存错误数据甚至整个系统崩溃。 如果计算机不在嘈杂的环境中，您甚至可能不会注意到差异。 也就是说，我仍然会尽快更换它。

As a general rule, when bits are removed from (or fall off of) an electrical circuit, it fundamentally changes the properties of the circuit. That makes it so it will not operate as intended (if at all), which is a polite way of saying “broken”.

通常，从电路中移除(或掉落)位时，从根本上改变了电路的属性。 这样一来，它就不会按预期运行(如果有的话)，这是一种礼貌的“断”的方式。

Followed by the answer from Mokubai:

随后是Mokubai的回答：

Those are almost definitely capacitors. I know because we use them extensively in electronics. The design of the board and position of the capacitors makes me strongly believe that they are simply decoupling capacitors. We put them across the power line and ground on a microchip like this as a filter to get rid of any noise on the chip power supply.

这些几乎绝对是电容器。 我知道，因为我们在电子产品中广泛使用它们。 电路板的设计和电容器的位置使我坚信，它们只是将电容器去耦。 我们将它们放在电源线上，并在这样的微芯片上作为滤波器接地，以消除芯片电源上的任何噪声。

Its having been knocked off will not damage your computer unless it tore a bit of track so that the pads are now shorted together. Make sure that the pads are clear. Other than that, the worst that would happen is the RAM module might “misbehave” at times, though it would be difficult to say how problems might manifest.

除非被撕裂，否则将其敲掉不会损坏您的计算机，以使焊盘现在一起短路。 确保清洁垫。 除此之外，可能发生的最坏情况是RAM模块有时可能“行为不当”，尽管很难说出问题如何显现。

The capacitor is essentially an open circuit to DC voltages, but effectively connects high frequency noise to a ground. There are generally a few placed close together near any lines that need protection, and losing one probably will not actually affect the RAM module much, if at all, but it might.

该电容器本质上是对DC电压开路，但有效地将高频噪声连接到地面。 通常，在需要保护的任何线路附近有几条并排放置，丢失一条线路实际上不会对RAM模块产生多大的影响，即使有的话，也有可能。

In case you care, the little black 8 pin packages at the bottom are 4-way resistor packs, almost certainly terminating the data lines going to the chips.

以防万一，底部的黑色8引脚小包装是4路电阻器，几乎可以肯定会终止连接到芯片的数据线。

Have something to add to the explanation? Sound off in the comments. Want to read more answers from other tech-savvy Stack Exchange users? Check out the full discussion thread here.

有什么补充说明吗？ 在评论中听起来不错。 是否想从其他精通Stack Exchange的用户那里获得更多答案？ 在此处查看完整的讨论线程 。

Image Credit: Jaroslaw W (Flickr)

图片来源： Jaroslaw W(Flickr)

翻译自: https://www.howtogeek.com/296103/what-are-the-little-gray-capped-things-on-ram-modules/

双ram口多模块存储器