Lenovo 5b20p24353 Motherboard NMB391 I5-7300hq 3GB Bl Win

Product Description

The LENOVO 5b20p24353 is a replacement motherboard designed for Lenovo laptop systems. It is identified by the board designation NMB391 and is configured with an Intel Core i5-7300HQ processor, 3GB discrete graphics, backlit keyboard support, and Windows platform compatibility. This board serves as the central processing assembly for the host system, integrating the CPU, graphics subsystem, and platform firmware interfaces. Installation is typically performed by a qualified laptop repair technician or IT hardware specialist familiar with Lenovo notebook architecture.

This motherboard is suited for laptop repair and refurbishment applications where the original board has failed due to component damage, thermal stress, or other hardware faults. It is configured for systems requiring a discrete 3GB graphics solution alongside the i5-7300HQ processor, making it appropriate for mid-range performance notebook platforms. The backlit keyboard signal support and Windows-compatible firmware round out the platform integration.

Key Features

• Board designation NMB391 for accurate cross-reference during sourcing
• Integrated Intel Core i5-7300HQ processor
• 3GB discrete graphics subsystem onboard
• Backlit keyboard interface support
• Windows platform firmware compatibility

Compatibility

Designed as an OEM-style replacement motherboard for Lenovo laptop systems configured with the NMB391 board designation, i5-7300HQ processor, and 3GB discrete graphics.

Installation Notes

Motherboard replacement should be performed by a qualified technician with experience in laptop disassembly. Disconnect the battery and all power sources before beginning service. Follow proper electrostatic discharge precautions throughout the procedure. Refer to the applicable Lenovo hardware maintenance manual for disassembly sequence and connector locations specific to the host chassis.

Technical Specifications

• Board Designation: NMB391
• Processor: Intel Core i5-7300HQ
• Discrete Graphics Memory: 3GB
• Keyboard Backlight Support: Yes
• Platform Compatibility: Windows

Standard Information

• Brand: LENOVO
• Manufacturer Part Number: 5b20p24353