1. Introduzione è Overview
This manual provides essential information for the installation and use of your OWC 64GB (8x8GB) DDR3 ECC PC3-10600 1333MHz SDRAM Memory Upgrade Module. This memory kit is designed to enhance the performance of compatible Mac Pro systems by increasing available RAM.
The OWC memory modules feature Error-Correcting Code (ECC) for improved data integrity and system stability, crucial for professional workstations. This kit includes eight 8GB DDR3 modules, totaling 64GB, operating at 1333MHz.

Figure 1: OWC 64GB (8x8GB) DDR3 ECC Memory Upgrade Kit packaging.
2. Setup è Installazione
Before beginning the installation process, ensure your computer is powered off and disconnected from all power sources. It is recommended to wear an anti-static wrist strap to prevent electrostatic discharge (ESD), which can damage electronic components.
2.1 Cumpatibilità
This memory kit is compatible with the following Mac Pro models:
- Mac Pro 12-Core (Model ID: MacPro5,1)
- Mac Pro 8-Core (Model ID: MacPro4,1)
It is also compatible with PC desktops featuring Intel/AMD processors that support DDR3 ECC 1333MHz 240-pin DIMM memory at 1.5V.

Figure 2: OWC DDR3 ECC Unbuffered DIMM compatibility information.
2.2 Passi d'installazione (Linee guida generali)
- Power Down: Shut down your computer completely and unplug the power cord.
- Casu apertu: Open your computer's case to access the motherboard and memory slots. Refer to your computer's specific service manual for instructions on opening the case and accessing memory.
- Truvà slot di memoria: Identify the DIMM slots on your motherboard. For Mac Pro systems, this typically involves sliding out the memory tray.
- Eliminate i moduli esistenti (se applicabile): If upgrading, gently unclip and remove any existing memory modules. Store them safely.
- Installà novi moduli: Align the notch on the OWC DDR3 memory module with the key in the DIMM slot. Press down firmly and evenly on both ends of the module until the retaining clips snap into place. Ensure all eight modules are installed in the correct slots as per your system's memory configuration guidelines.

Figura 3: Interior view of a Mac Pro with the memory tray partially open, showing memory slots for module installation.

Figure 4: OWC Memory Installation information, highlighting included instructions and support options.
- Chjude u casu: Once all modules are securely installed, close your computer's case.
- Power On: Reconnect the power cord and power on your computer. The system should automatically detect the new memory. Verify the installed memory in your operating system's system information.
3. Performance and Functionality
The OWC DDR3 ECC memory modules are engineered for reliable performance and stability. ECC (Error-Correcting Code) memory detects and corrects the most common kinds of internal data corruption, which is critical for servers, workstations, and systems where data integrity is paramount.
Operating at 1333MHz with a PC3-10600 rating, these modules provide a significant boost in data transfer rates, contributing to overall system responsiveness and the ability to handle demanding applications more efficiently.

Figure 5: OWC DDR3 ECC Unbuffered DIMM designed for speed and performance.

Figure 6: OWC Memory is built with quality components for reliability.
4. Mantenimentu
OWC DDR3 ECC memory modules are designed to be maintenance-free. Once installed correctly, they do not require any regular user intervention or cleaning.
To ensure optimal performance and longevity of your memory and computer system, it is recommended to:
- Keep your computer's interior clean from dust buildup, which can impede airflow and lead to overheating.
- Ensure adequate ventilation around your computer to prevent heat accumulation.
5. Risoluzione di prublemi
If you encounter issues after installing your OWC memory, consider the following troubleshooting steps:
- U sistema ùn si avvia micca: If your computer does not power on or display anything after installation, ensure all memory modules are fully seated in their slots. Gently press down on each end of the modules until the retaining clips click into place.
- Rilevazione di memoria incorretta: If your operating system reports less memory than installed, verify that all modules are compatible with your system and that they are installed in the correct configuration as per your computer's manual. Try re-seating the modules.
- Instabilità/Crash di u sistema: This could indicate a faulty module or improper installation. Try testing modules individually if possible, or in smaller groups, to isolate the issue.
- Impostazioni BIOS/UEFI: In some cases, you may need to check your system's BIOS/UEFI settings to ensure memory is detected correctly and running at the optimal speed.
Per i prublemi persistenti, riferitevi à Garanzia è Supportu sezione per l'infurmazioni di cuntattu.
6. Specificazioni
| Feature | Detail |
|---|---|
| Marca | OWC |
| Numero di mudellu | OWC1333D3W8M64K |
| Dimensione RAM | 64 GB (8 x 8 GB) |
| Tecnulugia di memoria RAM | SDRAM DDR3 |
| Tipu di memoria di l'urdinatore | ECC Unbuffered DIMM |
| Velocità di memoria | 1333 MHz (PC3-10600) |
| Voltage | 1.5 Volts |
| Pin Count | 240 pin |
| Dispositivi compatibles | Mac Pro 2009-2012 (Nehalem & Westmere models), PC Desktops |
| Pesu di l'articulu | 5.6 once |
| Dimensioni di u produttu | 6.26 x 4.02 x 1.54 inch |

Figure 7: Close-up of an OWC DDR3 ECC memory module, detailing form factor, type, and pin count.
7. Garanzia è Support
OWC stands behind its products with comprehensive warranty and support services.
7.1 Garanzia Limitata à Vita
Your OWC memory module is covered by a Lifetime Limited Warranty. This warranty includes an Advanced Replacement Program, meaning if you experience an issue, OWC can ship replacement memory to you immediately, minimizing downtime.
7.2 Assistenza tecnica
Experienced technical support is available to assist you with any questions or issues regarding your OWC memory. You can reach the OWC Tech Support Team via phone, chat, or email.

Figure 8: OWC warranty and support information, detailing lifetime replacement and available tech support.
For the most current contact information and detailed warranty terms, please visit the official OWC websitu.





