Toshiba · laptop motherboard

Toshiba Satellite L630 Quanta BU4

SchematicBIOS
Board code
Quanta BU4
Platform
Quanta BU4
Made by
Quanta
Revisions
Rev 1A
Files
5
Updated

Toshiba Satellite L630 Quanta BU4 is a laptop motherboard designed by Quanta and used in the Toshiba Satellite L630, Toshiba Satellite L635, Toshiba Satellite L730 and Toshiba Satellite L700.

The catalog has 4 schematics and 1 BIOS file for it, posted between 2020 and 2022 across 3 Telegram channels. Each download button opens the original Telegram post.

The files are marked Rev 1A; other revisions of the same board can differ in parts and layout.

The schematic files are PDFs; the first pages usually hold the block diagram and the power sequence. New to schematics? Start with How to Use a Schematic and a Boardview Together.

Read and save the original chip contents before you write anything to it — Keeping the Windows Product Key (MSDM) When Reflashing a BIOS.

Also listed under platform Quanta BU4.

Compatible models

Files for Toshiba Satellite L630 Quanta BU4

Schematics 4 All schematics →

BIOS and firmware 1 All bios and firmware →

Frequently asked questions

Which laptops use the Quanta BU4 motherboard?
File names in the catalog tie Quanta BU4 to the Toshiba Satellite L630, Toshiba Satellite L635, Toshiba Satellite L730 and Toshiba Satellite L700. Laptops sold under one model name can use different boards, so confirm by the code printed on the motherboard.
Which revision of Quanta BU4 do I have?
Files for this board mention Rev 1A. The revision is printed on the PCB silkscreen, usually next to the board code. Pick files with the same revision when you can; if yours is not listed, the closest revision is usually fine for the schematic but check part positions in the boardview carefully.
What should I check before flashing the Quanta BU4 BIOS?
Read the original chip with a programmer and save two copies before writing anything. A dump from another board carries that board's serial number and MAC address, so restore yours from the backup.

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Files are hosted on Telegram by third parties; ExcitingSpas.com only links to public posts. Check that a file matches your board before using it. Disclaimer · Report a file