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10-03-2011 02:26 PM - edited 10-03-2011 02:27 PM
If you read through all the many previous discussions on this subject you will find that the consensus is that it is not worth the time and energy to do since the Touchsmart line is somewhat unique in using laptop MXM video cards as opposed to full desktop sized graphics.
Heading off the obvious question, no, the model number isn't significant, the hurdles you would face are the same as in the IQ5xx, IQ8xx, 600, or 610 lines.