PCparts 02DM284 For Lenovo ThinkPad L490 L590 NM-B931 with I5-8265U Motherboard 100% Tested 45 Days Warranty

PCparts 02DM284 For Lenovo ThinkPad L490 L590 NM-B931 with I5-8265U Motherboard 100% Tested 45 Days Warranty

Product Description:

This is a high-quality compatible replacement motherboard for Lenovo ThinkPad L490 and L590 business laptops. The motherboard features part number 02DM284 and board model NM-B931, and comes pre-installed with an Intel Core i5-8265U processor. It has been 100% functionally tested and includes a 45-day warranty from the supplier.

Key Features:

• Processor: Intel Core i5-8265U (4 cores, 8 threads, 1.6GHz base, up to 3.9GHz turbo, 6MB cache)

• Motherboard Model: NM-B931 (FRU: 02DM284)

• Compatibility: Specifically designed for Lenovo ThinkPad L490 and L590 series laptops

• Graphics Options: Available in UMA (integrated Intel UHD Graphics 620) or discrete AMD R535 2GB GPU configurations

• Quality Assurance: 100% functionally tested before shipping

• Warranty: 45-day warranty from the supplier

Detailed Specifications:

Compatibility Information:

• Primary Compatibility: Lenovo ThinkPad L490 (Type 20Q5, 20Q6) and L590 (Type 20Q7, 20Q8)

• Processor Options: This specific model comes with i5-8265U, but NM-B931 motherboard supports various 8th generation Intel processors including i3-8145U, i5-8265U/8365U, i7-8565U/8665U

• Graphics Configuration: Available in both UMA (integrated graphics) and discrete AMD R535 2GB GPU versions

Processor Details (Intel Core i5-8265U):

• Architecture: 8th Gen Whiskey Lake

• Lithography: 14 nm

• Cores/Threads: 4 cores, 8 threads with Intel Hyper-Threading

• Clock Speeds: Base 1.6 GHz, Max Turbo 3.9 GHz

• Cache: 6 MB Smart Cache

• Graphics: Intel UHD Graphics 620 with 24 execution units

• Memory Support: DDR4-2400, LPDDR3-2133

• Max Memory: 64 GB

• TDP: 15W (configurable TDP-up to 25W)

Laptop Specifications (Lenovo ThinkPad L490/L590):

• Display Options: 14" (L490) or 15.6" (L590) with various resolutions including 1366×768 HD and 1920×1080 FHD

• Storage Options: M.2 NVMe SSDs

• Webcam: 720P HD camera

• Battery: 45Wh lithium polymer with fast charging support

• Connectivity: Wi-Fi 5 (802.11ac), Bluetooth 5.0, optional WWAN

• Ports: 2× USB 3.2 Gen 1 Type-A, 1× USB 3.2 Gen 2 Type-C, 1× USB 3.2 Gen 1 Type-C, HDMI, RJ45 Ethernet, microSD card reader

• Security: Fingerprint reader (optional), TPM 2.0

• Weight: L490: 1.68kg, L590: slightly heavier

Testing & Quality Assurance:

• 100% functional testing before shipping

• Processor tested for stability and performance

• All ports and connectors verified for proper operation

• Board inspected for physical damage and soldering defects

• BIOS functionality tested

Warranty Information:

• Duration: 45 days from the date of purchase

• Coverage: Manufacturing defects and functional failures

• Exclusions: Physical damage, improper installation, compatibility issues, or damage from liquid spills

• Provider: Third-party supplier warranty (not Lenovo official warranty)

Installation Instructions:

1. Safety First: Power off the laptop, disconnect all cables, and remove the battery

2. ESD Protection: Use an anti-static wrist strap or work on an anti-static surface

3. Disassembly:

   • Remove the bottom cover screws and carefully remove the cover

   • Disconnect the internal battery

   • Remove all cables connected to the motherboard (display, keyboard, touchpad, power, etc.)

   • Remove screws securing the motherboard to the chassis

4. Motherboard Removal: Carefully lift out the old motherboard

5. Installation:

   • Place the new NM-B931 motherboard in position

   • Secure with screws

   • Reconnect all cables

6. Reassembly:

   • Reconnect the internal battery

   • Replace the bottom cover and secure all screws

7. Testing: Power on the laptop and verify:

   • System boots correctly

   • All components are detected

   • Ports and connectivity function properly

Important Notes:

• Compatibility: This motherboard is specifically for ThinkPad L490 and L590 models

• Configuration Matching: Ensure the graphics configuration (UMA vs discrete GPU) matches your original setup

• Professional Installation: Motherboard replacement requires technical skill and proper tools

• Data Backup: Always backup important data before attempting hardware replacement

• BIOS Settings: You may need to configure BIOS settings after installation

• Part Verification: Verify your current motherboard part number before purchasing

Package Includes:

• 1× Lenovo ThinkPad L490/L590 compatible motherboard (NM-B931 / 02DM284)

• Installation guide (if provided by supplier)

Common Symptoms Requiring Motherboard Replacement:

1. No Power: Laptop won't turn on or charge

2. Boot Failure: System fails to POST or boot

3. Component Failure: USB ports, audio, or other integrated components not working

4. Overheating Issues: Persistent overheating despite clean cooling system

5. Physical Damage: Visible damage to the motherboard circuitry

Pre-Purchase Verification:

1. Confirm your laptop model is Lenovo ThinkPad L490 or L590 (check label on bottom)

2. Verify the current motherboard part number (if visible)

3. Check your original graphics configuration (UMA or discrete GPU)

4. Ensure the motherboard is the actual source of any system issues

Performance Expectations:

With the Intel Core i5-8265U processor, this motherboard provides:

• Solid performance for business applications, web browsing, and productivity tasks

• Efficient power management for good battery life

• Support for up to 64GB DDR4 memory

• Reliable performance for the ThinkPad L490/L590 platform

Technical Support:

For installation assistance or technical questions, contact the supplier's support team. Note that Lenovo official technical support may not be available for third-party components.

Return Policy:

• Returns are typically accepted within 30 days if the item is unused and in original packaging

• Defective items covered by warranty will be replaced or repaired according to warranty terms

• Always check the specific seller's return policy before purchasing

Why Choose This Replacement Motherboard:

1. Direct Compatibility: Specifically designed for ThinkPad L490 and L590

2. Tested Quality: 100% functional testing ensures reliability

3. Complete Solution: Includes processor for easy replacement

4. Warranty Protection: 45-day warranty provides peace of mind

5. Cost Effective: More affordable than official Lenovo replacement

This replacement motherboard will restore your Lenovo ThinkPad L490 or L590 to full functionality, providing reliable performance for business and professional use.