Pegasus R4i/J2i Articles

Mac Pro with Pegasus R4i Performance

2024-11-20T14:48:00.2130000

Promise Pegasus R4i and Pegasus J2i Intro

2024-11-20T14:47:16.6030000

Instructional Video : How to Rebuild Drive in Promise Utility - Pegasus R4i

2024-11-20T14:45:55.3970000

Instructional Video: 1-Minute Pegasus R4i Installation on Mac Pro

2024-11-20T14:44:02.0530000

Instructional Video : 1-Minute Pegasus J2i Installation on Mac Pro

2024-11-20T14:43:06.9270000

Addressing Temperature Differences in the Pegasus R4i with Mac Pro

2024-11-20T14:41:15.8300000

The Pegasus R4i integrates seamlessly with the Mac Pro, leveraging its unique design to ensure proper cooling. However, in certain cases, users may observe higher temperatures in the last two drives (PDs 2 and 4), located closest to the front grille fans.

Key Considerations:
1. Adequate Airflow by Design:
- The Mac Pro's cooling system provides sufficient airflow for optimal performance.
- The Pegasus R4i has no reported systemic temperature-related issues under normal operation.

2. Temperature Variations:
- PDs 2 and 4 may have slightly higher temperatures due to their position closer to the front grille fans.

3. Automatic Fan Adjustments:
- The Mac Pro dynamically adjusts fan speeds if ambient temperatures rise, ensuring consistent cooling.

Options to Manually Adjust Fan Speeds:
If you wish to manually control fan speeds, third-party software such as Macs Fan Control by CrystalIdea can be used.

- Download Link: Macs Fan Control
- Features:
- Allows manual or automatic adjustment of fan speeds.
- Provides real-time temperature monitoring.

Recommendations:
- Regularly monitor drive temperatures through Promise Utility or similar tools to ensure they remain within acceptable ranges.
- Use Macs Fan Control if specific workloads or environments require additional cooling adjustments.
- Ensure the Mac Pro is operating in a well-ventilated environment to avoid unnecessary thermal buildup.

Instructional Video: How to swap a drive inside of the Pegasus R4i module.

2024-11-20T14:37:53.7200000

Instructional Video: How to save a Promise Utility Service report - PegasusR4i/J2i

2024-11-20T14:36:34.5770000

Instructional Video: Installing a second Promise drive to the J2i

2024-11-20T14:34:10.8430000

2023 Mac Pro: Pegasus J2i unmounted on wake from sleep

2024-10-29T02:50:44.7930000

Introduction

Some 2023 Mac Pro owners have experienced an issue where the Pegasus J2i drive is unmounted after wake from sleep.

Solution

Update macOS to macOS 13.5.

FAQ: Can the Pegasus R4i (MPX module) be used in the 2023 Mac Pro

2024-10-29T02:49:14.6230000

Question: Can the Pegasus R4i be used in the 2023 Mac Pro

Answer: Unfortunately, no.

While the new Mac Pro does have PCI slots, it lacks the MPX slots of the 2019 Mac Pro. The MPX slots supply additional power to the PCI cards installed and the MPX slots were designed for the Pegasus R4i and the Video cards used by the 2019 Mac Pro. Without the MPX slots, neither the Pegasus R4i nor the Video cards used in the 2019 Mac Pro can be used.