You should have received a SOLID STATE DRIVE from Siemens not the old HDD. I think the monitor is a 12" and you can look on line and get the same size LCD monitor with a CGA port. Then take the old one out and put in the new one for about $100. The old one should be a old style CRT ( cathode ray tube) if it has not been upgraded, and the new ones are LCD (liquid crystal display).

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