The Structure of Motherboard SMBIOS Tables
The System Management BIOS (SMBIOS) specification defines data structures stored in motherboard non-volatile RAM that describe physical computer hardware. When kernel anti-cheats (Vanguard, EAC, BattlEye) calculate hardware ban identifiers, they parse multiple discrete SMBIOS Table Types.
The Key SMBIOS Table Types Audited
| SMBIOS Type | Table Name | Hardware Data Captured |
|---|---|---|
| Type 0 | BIOS Information | Vendor (ASUS/MSI), BIOS Release Date, ROM Size |
| Type 1 | System Information | Manufacturer, Product Name, System UUID, Serial Number |
| Type 2 | Baseboard (Motherboard) | Motherboard Serial, Asset Tag, Board Version |
| Type 3 | System Enclosure / Chassis | Chassis Type, Chassis Serial Number |
| Type 4 | Processor Information | CPU Socket, Core Count, Processor ID / Microcode Hash |
How Incomplete Spoofers Trigger Instant Permanent Bans
Amateur spoofers modify only the Type 1 System UUID while leaving the Type 2 BaseBoard serial identical, or inject strings with invalid null terminators (e.g., "Default string" or "To be filled by O.E.M."). Anti-cheat heuristic engines flag these inconsistent table structures immediately.
Review our analysis on the severe risks of motherboard BIOS DMI spoofing.
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