提升 Mac 性能和延长其保质期的最便宜的方法之一是执行Mac RAM升级。在较旧的Mac 上(Macs)，此过程很简单。这大约需要一个小时，并且只需要一些你可以在沃尔玛(Walmart)买到的工具，如果你碰巧家里没有的话。
在引导您完成整个过程之前，我们将帮助您确定哪些Mac(Macs)可以升级以及应该购买 哪些RAM 。
我可以升级我的 Mac 上的 RAM 吗？
并非每台Mac都可以升级Mac RAM。较旧的 Mac(Older Macs)附带可以移除和升级的 RAM，而较新的型号则将RAM焊接(RAM)到主板上。如果您有以下旧型号之一，您可以升级您的RAM：
- MacBook：仅限 2008 至 2011 型号。
- MacBook Pro (retina)：内存(RAM)不能在任何Retina MacBook Pro中更新。
- MacBook Pro （13 英寸，非视网膜）((13in, non-retina))：仅限 2009-2012 型号。
- MacBook Pro （15 英寸，非视网膜）((15in, non-retina))：仅限 2008-2012 型号。
- MacBook Pro （17 英寸，非视网膜）((17in, non-retina))：可以更新任何型号。
- MacBook Air：任何MacBook Air 型号都无法更新RAM 。
- MacBook：RAM不能在任何MacBook中更新。
- iMac ：除了(iMac)2014 年中(Mid-2014)和 2015 年末推出的 21.5 英寸 iMac 之外，大多数 iMac 都可以升级，这两款 iMac 的 RAM 都已焊接到位。
- Mac mini：仅限 2010 – 2012 和 2018 型号。
- Mac Pro：您可以为任何型号添加 RAM。
- iMac Pro：用户无法访问RAM。如果需要更换RAM ，您需要联系Apple 。
如果您的Mac不在上面的安全列表中，那么如果没有专业级的焊接工具和经验，您将无法移除RAM 。即使这样，您也可能会损坏Mac。
如何为您的 Mac 找到合适的(Your Mac)RAM(Right RAM)
您应该从Crucial或OWC (MacSales)等供应商在线购买您的RAM，这两家供应商都以其高品质的RAM和出色的客户服务而闻名。Crucial和OWC都有帮助您找到与您的Mac兼容的RAM 模块(RAM modules)的指南。按照(Follow)他们的指示，您将能够为您的特定型号购买正确的 RAM(the correct RAM)。
如果您不知道您的型号，一些内存零售商甚至有一个系统扫描工具(system scanning tool)可以为您完成繁重的工作。
执行 Mac RAM 升级
在您移除Mac的(Mac)RAM之前，您需要打开计算机并找到它所在的位置。某些台式机（例如iMac）具有特定的翻盖，您可以将其卸下，而其他台式机（例如Mac mini和MacBook Pro）则需要您卸下机箱底部。
一旦您可以访问RAM，它就像解开旧RAM模块、移除它们并插入新模块一样简单。下面以MacBook Pro为例说明：
删除现有 RAM
- 关闭(Shut)Mac，断开电源线，然后等待计算机冷却下来。
- 翻转(Turn)你的Mac，使后盖朝上。
- 卸下固定外壳底部的 10 颗螺钉。这些螺钉的长度不同，因此请注意跟踪哪个螺钉在哪里。
- 轻轻取下后壳并将其放在一边。
- 触摸笔记本电脑的金属部分以释放静电。
- 找到现有内存并通过推动RAM模块侧面的拉杆将其卸下。杠杆向外推，RAM芯片应以一定角度弹出。
- 寻找当RAM(RAM)从插槽中取出时出现的半圆形凹口。如果您没有看到凹槽，请尝试再次按下控制杆。
- 抓住槽口抓住RAM模块并将其从插槽中取出。尽量避免接触金色连接器。
- 重复上述步骤以卸下另一个内存模块。
安装新内存
- 从包装中取出新的RAM模块，小心握住它的槽口而不是金色连接器。
- 将(Align)新内存的槽口与内存插槽中的槽口对齐。
- 倾斜RAM模块并将其以一定角度滑入内存插槽。
- 用两根手指向下按RAM模块，使其平放。正确插入时应该会听到咔哒声。金触点应几乎完全插入连接器。
- 重复此过程以安装第二个RAM模块。
- 将外壳安装到Mac Pro的背面。
- 更换(Replace)螺钉，跟踪它们的原始位置。
- 拧紧螺丝。
检查安装
- 打开计算机电源以确保它启动。
- 选择左上角 的Apple 标志。(Apple logo)
- 选择关于本机(About this Mac)。
- 适当数量的RAM应出现在概览(Overview )选项卡中。
为什么需要升级 Mac RAM
随机存取存储器(Random Access Memory)( RAM ) 是CPU用来存储数据的临时存储空间。它旨在保存计算机上运行的应用程序和进程使用的短期数据。您拥有的RAM(RAM)越多，您可以在这个快速访问的存储点中存储的数据就越多。
如果您希望您的Mac运行平稳可靠，您需要有足够的RAM。这对于可能仅配备少量RAM的旧 Mac 型号尤其重要。随着应用程序变得越来越大和越来越复杂，如果您希望它们在没有故障或崩溃的情况下执行 ，您需要更多的RAM 。
安装RAM既便宜又容易，因此当您的(RAM)Mac开始降低其性能 时，它应该是您采取的第一步。
升级 RAM 的成本
在大多数情况下，将Mac的(Mac)RAM翻倍只需不到 100 美元。即使您有一个更换成本更高的型号，您也可能不必花费超过 200 美元进行升级。
如果您负担不起Mac上的(Mac)RAM升级费用，您可以采取一些措施来让您的计算机尽可能地运行。最有效的技巧是限制一次打开的应用程序数量。如果您正在使用Microsoft Word撰写论文并想查看电子邮件，请先关闭Word，然后再打开Mail。
尝试保持尽可能少的应用程序打开。如果您不确定哪些应用程序正在运行，您可以通过打开活动监视器(Activity Monitor)应用程序然后使用这些说明(these instructions)来检查哪些应用程序正在运行。
A Mac RAM Upgrade Step-By-Step Guide
One of the cheapest waуs to boost your Mac’s perfоrmance and prolong its shelf life is to perform a Mac RAM upgrade. On older Macs, this process is еasy. It takes about an hour and only requires a handful of tools you can get at Walmart if you don’t happеn to have them at home.
We will help you figure out which Macs can be upgraded and which RAM you should purchase before walking you through the process.
Can I Upgrade the RAM On My Mac?
A Mac RAM upgrade isn’t possible on every Mac. Older Macs shipped with RAM that could be removed and upgraded, while newer models have RAM soldered into the motherboard. If you have one of the older models below, you can upgrade your RAM:
- MacBook: 2008 to 2011 models only.
- MacBook Pro (retina): The RAM can’t be updated in any Retina MacBook Pro.
- MacBook Pro (13in, non-retina): 2009-2012 models only.
- MacBook Pro (15in, non-retina): 2008-2012 models only.
- MacBook Pro (17in, non-retina): Any model can be updated.
- MacBook Air: The RAM can’t be updated in any MacBook air model.
- MacBook: The RAM can’t be updated in any MacBook.
- iMac: Most iMacs can be upgraded except the 21.5-inch iMac from Mid-2014 and Late 2015, both of which had their RAM soldered into place.
- Mac mini: 2010 – 2012 and the 2018 models only.
- Mac Pro: You can add RAM to any model.
- iMac Pro: RAM isn’t user-accessible. You need to contact Apple if the RAM needs to be replaced.
If your Mac is not on the safe list above, then you can’t remove the RAM without professional-level soldering tools and experience. Even then, you likely will damage the Mac.
How To Find The Right RAM For Your Mac
You should purchase your RAM online from a provider like Crucial or OWC (MacSales), both of which are known for their high-quality RAM and excellent customer service. Both Crucial and OWC have guides that help you find RAM modules that are compatible with your Mac. Follow their instructions, and you will be able to purchase the correct RAM for your specific model.
If you don’t know your model, some memory retailers even have a system scanning tool that can do the hard work for you.
Performing a Mac RAM Upgrade
Before you can remove the RAM for your Mac, you need to open up the computer and find where it is located. Some desktops like the iMac have a specific flip cover that you remove, while others like the Mac mini and MacBook Pro require you to remove the bottom of the case.
Once you have access to the RAM, it’s as simple as unclipping the older RAM modules, removing them, and inserting the new ones. Below are instructions from the MacBook Pro as an example:
Remove Existing RAM
- Shut down your Mac, disconnect the power cord, and wait for the computer to cool down.
- Turn over your Mac, so the back cover is facing upwards.
- Remove the 10 screws securing the bottom part of the case. These screws are different lengths so take care to keep track of which screw goes where.
- Lift off the back case gently and place it aside.
- Touch a metal part of the notebook to discharge any static electricity.
- Find the existing memory and remove it by pushing the levers on the sides of the RAM module. The levers push outwards, and the RAM chip should pop up at an angle.
- Look for the half-circle notches that appear when the RAM is lifted out of its slot. If you don’t see the notches, try pressing the lever again.
- Grab the RAM module by the notches and remove it from its slot. Try to avoid touching the gold connectors.
- Repeat the steps above to remove the other memory module.
Install New RAM
- Remove the new RAM module from its packaging, being careful to hold it by its notches and not the gold connectors.
- Align the notches of the new memory with the notch in the memory slot.
- Tilt the RAM module and slide it into the memory slot at an angle.
- Using two fingers, press down on the RAM module so it lays flat. There should be an audible click when it is inserted correctly. The gold contacts should be inserted almost completely into the connector.
- Repeat this procedure to install the second RAM module.
- Fit the case onto the back of the Mac Pro.
- Replace the screws, keeping track of their original location.
- Tighten the screws.
Check Installation
- Power on the computer to make sure it starts.
- Select the Apple logo in the upper left corner.
- Select About this Mac.
- The proper amount of RAM should appear in the Overview tab.
Why Mac RAM Upgrades are Necessary
Random Access Memory (RAM) is a temporary storage place that your CPU uses to store data. It is meant to hold short-term data used by apps and processes that are running on your computer. The more RAM you have, the more you can store data in this fast-access storage spot.
If you want your Mac to perform smoothly and reliably, you need to have enough RAM. This is especially important in older mac models that may have shipped with only a small amount of RAM. As applications grow bigger and more complex, you need more RAM if you want them to perform without glitching or crashing.
Installing RAM is cheap and easy, so it should be one of the first steps you take when your Mac starts to slow down in its performance.
Cost to Upgrade Your RAM
In most cases, it’ll cost less than a hundred dollars to double the RAM in your Mac. Even if you have a model that’s more expensive to replace, you likely won’t have to spend more than $200 on an upgrade.
If you cannot afford a RAM upgrade on your Mac, there are a few things you can do to keep your computer running as best as it can. The most effective trick is to limit the number of apps you have open at once. If you are writing a paper in Microsoft Word and want to check your email, shut down Word first and then open Mail.
Try to keep as few apps open as possible. If you are not sure which apps are running, you can check which apps are running by opening the Activity Monitor app and then using these instructions.
