How to Identify Your RAM Die Manufacturer with Thaiphoon Burner (Samsung B-Die, Micron, Hynix)

If you are fine-tuning your memory timings or building an optimized gaming PC, knowing the exact silicon die manufacturer of your RAM is the single most critical factor. In this comprehensive guide, we demonstrate how to safely read and identify your RAM die manufacturer using Thaiphoon Burner.

Why Does Your RAM Die Type Matter?

Memory sticks sold by brands like Corsair, G.Skill, Kingston, TeamGroup, and Crucial do not manufacture their own DRAM silicon. Instead, they purchase memory chips (dies) from three primary semiconductor manufacturers:

• Samsung Semiconductor: Famous for legendary B-Die (high voltage tolerance, ultra-tight tRFC and tCL timings) as well as C-Die and D-Die.
• Micron Technology: Renowned for Rev. E (E-Die) and Rev. B (B-Die), which clock exceptionally high frequencies on AMD Ryzen and Intel platforms.
• SK Hynix: Makers of popular CJR, DJR, and modern A-Die / M-Die chips used widely in high-speed DDR4 and DDR5 memory kits.

Each die revision possesses unique electrical characteristics, maximum safe operating voltages, and timing ceilings. Using timings intended for Samsung B-Die on an SK Hynix module will inevitably cause boot failures or memory corruption.

Step-by-Step: Identifying Your RAM Die with Thaiphoon Burner

Step 1: Download and Extract Thaiphoon Burner

First, download the latest verified version of the software from the official Thaiphoon Burner download page. Extract the contents of the archive into a dedicated directory. No invasive installer is required.

Step 2: Launch with Administrator Privileges

Right-click on Thaiphoon.exe and select Run as administrator. Administrative rights are strictly required to allow the low-level SMBus device driver to communicate with your motherboard's memory slots.

Step 3: Read the Memory Module SPD

In the main menu bar, click on the Read button. You will see a dropdown list indicating the memory slots detected on your motherboard SMBus controller (for example, Read SPD on SMBus at 50h or 52h). Select the first module.

Within seconds, Thaiphoon Burner communicates with the EEPROM chip on the RAM stick and loads a comprehensive diagnostic report.

Step 4: Check the "DRAM Components" Section

Navigate to the DRAM Components section of the generated report. Look for the following fields:

If you see "8 Gb B-die" under Samsung, congratulations: your memory module is equipped with genuine Samsung B-Die chips!

What If Thaiphoon Burner Says "Undetermined" or "?-Die"?

Occasionally, newer production batches or OEM re-binned chips (common on Corsair kits with Ver 4.32 or Ver 5.32) may show "Undetermined" or "?-Die". Here is how to verify:

1. Cross-reference the Part Number: Examine the fifth and sixth letters of the manufacturer part number. For instance, in K4A8G085WB, the 'B' indicates B-Die.
2. Check the Version Number on the physical stick label (e.g. Corsair Ver 4.31 = Samsung 8Gb B-Die; Ver 3.31 = Micron 8Gb Rev. E).
3. Ensure no background monitoring utilities are locking SMBus communication. See our guide on how to fix SMBus driver errors.

Next Steps: Fine-Tuning Your Memory

Once you know your exact die type, you can proceed with confidence. Learn how to export your SPD report to Ryzen DRAM Calculator to generate stable primary, secondary, and sub-timings tailored specifically to your hardware configuration.