Dell · laptop motherboard

Dell OptiPlex 990

SchematicBIOS
Files
5
Updated

Dell OptiPlex 990 is a laptop motherboard used in the Dell OptiPlex 990.

The catalog has 1 schematic and 4 BIOS files for it, posted between 2019 and 2025 across 3 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.

BIOS notes: file names mention 2 MB and 8 MB chip sizes. 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

  • Dell OptiPlex 990

Files for Dell OptiPlex 990

Schematics 1 All schematics →

BIOS and firmware 4 All bios and firmware →

Notes from the source posts

  • You can give us as a gift.

Frequently asked questions

What should I check before flashing the Dell OptiPlex 990 BIOS?
Read the original chip with a programmer and save two copies before writing anything. File names for this board mention 2 MB and 8 MB images; the dump size must match your chip. 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