HP · laptop motherboard

HP CQ42 DA0AX3MB6C2

SchematicBIOS
Board code
DA0AX3MB6C2
Platform
Quanta AX3
Made by
Quanta
Revisions
Rev 1A, Rev C
Files
10
Updated

HP CQ42 DA0AX3MB6C2 is a laptop motherboard designed by Quanta and used in the HP CQ42, HP Presario CQ62 and HP G62.

The catalog has 3 schematics and 7 BIOS files for it, posted between 2018 and 2024 across 4 Telegram channels. Each download button opens the original Telegram post.

File names mention 2 board revisions (Rev 1A and Rev C). Check the revision printed on your PCB before relying on a boardview or flashing a BIOS dump — How to Open .FZ Boardview Files explains why it matters.

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 AX3; codes DA0AX3MB6C1, DA0AX3MB6C0.

Compatible models

Files for HP CQ42 DA0AX3MB6C2

Schematics 3 All schematics →

BIOS and firmware 7 All bios and firmware →

Frequently asked questions

Which laptops use the DA0AX3MB6C2 motherboard?
File names in the catalog tie DA0AX3MB6C2 to the HP CQ42, HP Presario CQ62 and HP G62. Laptops sold under one model name can use different boards, so confirm by the code printed on the motherboard.
Which revision of DA0AX3MB6C2 do I have?
Files for this board mention Rev 1A and Rev C. 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 DA0AX3MB6C2 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.

Guides for this board

Similar boards

Browse more

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