How to Upgrade RAM to 128GB on Apple Mac Pro “Trash Can” (A1481) – Step-by-Step Guide

---

OVERVIEW:

In this blog tutorial, we’ll walk you through the full process of upgrading your Apple Mac Pro (Cylinder model) RAM to its maximum supported capacity of 128GB. This step-by-step guide is based entirely on the repair video by TechTep and breaks the process down with detailed steps so even beginners can follow along. You’ll learn how to unlock the Mac Pro chassis, safely remove old RAM modules, install new ones, and verify proper installation. Let’s get started with maximizing your Mac Pro’s performance.

---

REPAIR TIME & SKILL LEVEL:

This repair is estimated to take about 30 to 45 minutes to complete and is of BEGINNER difficulty, requiring only basic component handling and gentle installation steps.

---

STEPS:

Tools You Need

For this RAM upgrade, all you need is your hands — no screwdrivers or specialty tools required. Simply unlock the cylinder housing, remove the existing RAM sticks, and install the new RAM carefully by aligning and applying slight pressure. Optional: Use an anti-static wrist strap to prevent damage from static discharge.

---

Unlock the Cylinder Housing

• Locate the lock mechanism on the back of your Mac Pro.
• Swipe the lock to the right to release the top housing.
• This unlocks the main cylinder cover, giving access to internal components.

---

Remove the Outer Cylinder Cover

• Lift the cover straight up and off the Mac Pro.
• Set it aside on a clean surface to avoid scratches.
• You now have full access to the RAM module housing and internal structure.

---

Locate the RAM Module Housing

• Look for the black RAM slots located evenly on both sides of the inner column.
• These slots hold the Mac Pro’s RAM and are covered by a locking mechanism.
• You will see a latch near the top of each RAM bay.

---

Unlock the RAM Housing

• Gently press the latch located at the top of the RAM slot area.
• The housing will unlock and slightly move forward, indicating it’s ready for access.
• Repeat this for both RAM housings (if applicable) to expose all RAM slots.

---

Remove the Old RAM Modules

• Use both hands to gently grab the RAM stick and pull it outward.
• It should slide out smoothly — do not force it if there’s resistance.
• Repeat this step until all four existing RAM modules are removed.

---

Align New RAM Modules Properly

• Before inserting the new RAM, check the notch alignment on the module.
• Make sure the RAM stick is facing the correct direction for your slot.
• Improper alignment can damage the RAM or housing.

---

Insert New RAM Modules

• Once aligned, insert the module gently into the slot.
• Apply a small amount of even pressure until the RAM clicks into place.
• Repeat this process for each RAM module you’re installing.

---

Secure the RAM Housing

• Once all modules are inserted, push the RAM housing back toward the center.
• This action locks the modules securely in place.
• Make sure both sides are flush with the frame, confirming proper installation.

---

Reinstall the Cylinder Cover

• Place the Mac Pro’s outer cylinder cover back over the unit.
• Align the cover properly with the frame.
• Swipe the lock mechanism back to the left to secure it.

---

Power On and Verify RAM Installation

• Press the power button on your Mac Pro to turn it on.
• Once it boots, the RAM should automatically register in the system.
• You can check total installed memory under “About This Mac.”

---

Troubleshoot RAM Installation (If Needed)

• If the Mac Pro beeps or doesn’t power on, one or more modules may be misaligned.
• Power off, remove the cover, and reseat each RAM stick carefully.
• Retry powering on until the system boots without error sounds.

---

CONCLUSION:

Upgrading your Mac Pro RAM to 128GB can greatly enhance performance, especially for tasks like video editing and 3D rendering. This straightforward repair is quick, doesn’t require special tools, and can be done in under an hour. Make sure to align the RAM properly and double-check your installation if the system doesn’t boot. Enjoy your upgraded Mac Pro!

---

VIDEO TUTORIAL:

Looking for a more in-depth tutorial? Check out our complete teardown video for a detailed step-by-step walkthrough.

---

MAIL-IN REPAIR SERVICE:

We offer professional RAM upgrades and Mac repairs. If you’re unsure about doing this upgrade yourself, send your device to our expert technicians for fast and reliable service.

https://tekdep.com/device-repair/

---

SHOP PARTS:

---

SHOP TOOLS:

Using precision tools ensures a safe and efficient repair. Always use the right tools to prevent damage to delicate components. Anti-static handling is recommended when working inside any Mac system.

---

HAVE QUESTIONS?

If you have any questions, leave them in the comments below. Our community and team will be happy to help!

• Phone: 818-456-4479
• Email: support@tekdep.com