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Ruud's Diagnostic ROM


IBM 5150

For the IBM 5150 motherboard of type 16KB-64KB, click here.
For the IBM 5150 motherboard of type 64KB-256KB, click here.

IBM 5155

For the IBM 5155 motherboard, click here       <-----  IBM 5155 contains an early IBM 5160 motherboard

IBM 5160

For the IBM 5160 motherboard of type 64-256KB, click here.
For the IBM 5160 motherboard of type 256-640KB, click here.

PC and XT clones

Click here.