StoneTaskin 5B21D72013 NM-E231 For Lenovo Legion 5 Pro 16IAH7H Laptop Motherboard I7-12700H RTX3070TI 8GB 45 Days Warranty 100% Tested

StoneTaskin 5B21D72013 For Lenovo Legion 5 Pro 16IAH7H Laptop Motherboard i7-12700H RTX3070Ti 8GB 45 Days Warranty 100% Tested

Product Description:

This is a high-quality compatible replacement motherboard designed for the Lenovo Legion 5 Pro 16IAH7H (2022 Model) gaming laptop. The motherboard carries the part number 5B21D72013 and comes pre-installed with an Intel Core i7-12700H processor and an NVIDIA GeForce RTX 3070 Ti 8GB dedicated graphics card. The product has undergone 100% functional testing and comes with a 45-day warranty.

Core Specifications

Detailed Component Information

1. Processor (Intel Core i7-12700H)

• Architecture: Alder Lake-H (12th Gen Core High Performance Mobile)

• Process: Intel 7 (10nm)

• Cores/Threads: 14 Cores (6 Performance-cores + 8 Efficient-cores) / 20 Threads

• Max Turbo Frequency: Up to 4.7 GHz (P-cores), up to 3.5 GHz (E-cores)

• Cache: 24MB Intel Smart Cache

• Base Power: 45W

• Integrated Graphics: Intel Iris Xe Graphics (96 EUs)

2. Graphics (NVIDIA GeForce RTX 3070 Ti Laptop GPU)

• Video Memory: 8GB GDDR6

• GPU Boost Clock: Approximately 1035-1485 MHz (varies by laptop's power design)

• Memory Bus: 256-bit

• Technologies: Supports Ray Tracing, DLSS, Dynamic Boost 2.0, WhisperMode 2.0

• Advanced Optimus: Supports GPU switchable via BIOS or Lenovo Vantage software

Compatibility & Verification

• Exact Match Required: This motherboard is only compatible with the Legion 5 Pro 16IAH7H (Model 82RF). It is not compatible with other Legion 5 or Legion 5i Pro models.

• Verification Method:

  1. Check the "Model" or "MTM" number on the laptop's bottom label. It must be 82RFxxx.

  2. The part number on the original motherboard should be 5B21D72013 or very similar.

• Included Components: The CPU and GPU are typically soldered onto this motherboard. Components like RAM, SSD, and wireless card need to be transferred from the old board.

Installation Notes (High-Risk Operation)

⚠️ Warning: Laptop motherboard replacement is one of the most complex repairs, requiring nearly complete disassembly. Recommended for experienced technicians only.

Brief Step Overview:

1. Complete Disassembly: Remove the bottom cover, battery, cooling system, all connected cables (display, keyboard, touchpad, USB daughterboard, etc.), and all removable components (RAM, SSD, wireless card).

2. Motherboard Replacement: Unscrew the motherboard, carefully remove the old one, install the new motherboard, and secure all screws.

3. Reassembly: Reinstall all components in reverse order. It is imperative to apply new, high-quality thermal paste to the CPU and GPU before reinstalling the cooling system.

4. Power-On Test: After assembly, perform a minimal boot test (with only battery and display connected) to enter BIOS. Then gradually install other components.

Warranty & Support

• Warranty Period: 45 days (provided by the third-party supplier).

• Coverage: Typically covers functional failures upon receipt (e.g., no power, core components not working).

• Exclusions:

  • Physical damage caused during installation.

  • Overheating damage due to lack of thermal paste or improper installation.

  • Issues arising from use with incompatible components.

  • Any form of liquid damage.

• Important Note: This procedure will void any remaining Lenovo manufacturer warranty. Furthermore, third-party motherboards may not receive official Lenovo BIOS updates or driver support.

Pre-Purchase Checklist

1. Confirm Fault: Ensure the issue is with the motherboard itself, and not a separate power, memory, or storage problem.

2. Verify Model: Double and triple-check that your laptop model is 16IAH7H (82RF). This is the sole and absolute requirement for compatibility.

3. Assess Skill Level: Honestly evaluate your technical skills. If in doubt, entrust the job to a professional repair service.

4. Prepare Materials: Have thermal paste, a precision screwdriver set, an anti-static wrist strap, and plenty of patience ready.