Since the Mac Pro utilizes one GPU for display output and a second exclusively for compute tasks, standard software struggles to isolate faults. ASD 3S159 tests each AMD FirePro card independently, checking the PCIe lane integrity and individual VRAM banks.
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Apple strictly bound each ASD variant to a unique machine identifier. Running an incorrect version results in a boot failure or false error reporting. ASD Version Target Machine Form Factor / Identifier Release Year Mac Pro (Late 2013) Go to product viewer dialog for this item. MacPro6,1 Cylinder
If you have already run the standard user-facing and received any specific error codes asd 3s159
If you are currently diagnosing a specific failure on a Mac Pro (Late 2013), let me know (such as freezing, fan spinning at max, or failing to turn on) so I can help you target the correct tests. Share public link
In Disk Utility, highlight the target partition (e.g., ASD_EFI ). Go to Edit > Restore .
Deploying ASD 3S159 requires preparing dedicated external media, as it cannot be run from a standard retail macOS recovery partition. Since the Mac Pro utilizes one GPU for
Essential for isolating the infamous thermal-throttling and VRAM failures common to the Mac Pro Late 2013's AMD FirePro D300/D500/D700 graphics cards. Creating a Bootable ASD 3S159 Drive
: It could be a transistor (bipolar junction transistor (BJT) or field-effect transistor (FET)) or a diode. The "3S" might indicate it's a device capable of handling a certain level of power or that it's designed for specific applications.
I can guide you through deciphering the results or isolating the broken part! ASD - GitHub Gist Let me know so I can provide more specific advice
If you are looking to diagnose a , it is highly recommended to use ASD 3S159 over any newer tool.
: It is generally installed on an external USB drive. Technicians boot from this drive by holding the Option key during startup and selecting the ASD partition. Where to Find It
This specific ASD version targets the unique architecture of the "Trashcan" Mac Pro. GPU Stress Testing
To maximize test accuracy and protect your components when running ASD 3S159, follow these operational standards:
The diagnostic is typically handled as a .dmg image file (often split across archive parts during technician deployment). Technicians use tools like Disk Utility or terminal commands to restore the image onto a dedicated USB flash drive or a local NetBoot server.