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HP Presario CQ20 is a laptop motherboard used in the HP Presario CQ20, HP GM45 and HP CQ2230.
The catalog has 1 schematic and 2 BIOS files for it, posted between 2018 and 2026 across 2 Telegram channels. Each download button opens the original Telegram post.
The schematic is a PDF; 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.
Compatible models
- HP Presario CQ20
- HP GM45
- HP CQ2230
Files for HP Presario CQ20
Schematics 1 All schematics →
- HP Compaq Presario CQ20.pdfDownload from Telegram
BIOS and firmware 2 All bios and firmware →
- CQ20 2230 GM45_493185-001-hp.BINDownload from Telegram
- CQ20_cq2230_GM45 493185-001-hp.zipDownload from Telegram
Frequently asked questions
What should I check before flashing the HP Presario CQ20 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
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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