Quanta BU4 – Toshiba Satellite L630
Quanta BU4 is the Quanta main board used in the Toshiba Satellite L630, Toshiba Satellite L700 and Toshiba Satellite L730. The catalog lists 2 files for it: 1 BIOS file and 1 schematic.
File names mention revision 1A. The earliest file dates from June 2021 (BIOS Archive, Schematics & Boardviews Archive and Cyberlan Electronics).
BIOS dumps 1
Schematics 1
Board facts
| Board number | Quanta BU4 |
|---|---|
| Designed by | Quanta |
| Revisions | 1A |
| Graphics | UMA (integrated) |
| First seen | 2021-06-21 |
| Source channels | BIOS Archive, Schematics & Boardviews Archive, Cyberlan Electronics |
| About the number | Quanta project codes (two to four characters) name the platform a DA0 board belongs to. |
Laptops that use Quanta BU4
What these files are for
A BIOS dump is a full image of the board's SPI flash chip. It is written back with an SPI programmer when the original firmware is corrupted, after a chip replacement, or to recover from a failed update. Read and save the original chip first: serial number, DMI data and the Intel ME / AMD PSP state differ between boards.
A schematic is the circuit diagram of the main board: power rails, power-up sequence, component values and net names. It is the reference for measuring voltages and tracing a fault.
Tools to open these files
| Format | What it is | Open with |
|---|---|---|
| PDF schematic | any PDF reader; Sumatra PDF and Foxit handle large schematics well | |
| .rar | RAR archive | 7-Zip or WinRAR |
| .bin | BIOS image inside the archive (usually .bin) | a CH341A, XGecu T48 / TL866II Plus or RT809H programmer |
Questions
Who designed the Quanta BU4 board?
Quanta BU4 is a Quanta board number used by Toshiba.
Is there a boardview for Quanta BU4?
No boardview has been indexed for Quanta BU4 yet; the schematic is available on this page.
Which laptops use the Quanta BU4 board?
Files in the catalog link Quanta BU4 to the Toshiba Satellite L630, Toshiba Satellite L700 and Toshiba Satellite L730.
Where do the download links go?
Each button opens the original public Telegram post the file was shared in. ChambersDesignInc.com only indexes and cross-references those posts.