HP 207657-001 - Motherboard (system I/O board), with 64MB SDRAM - Does not include processor - For models with TFT display Retail
HP 207656-001 - Motherboard (system I/O board), with 64MB SDRAM - Does not include processor - For models with HPA display Retail
HP 221414-001 - Motherboard (system I/O board), 32MB - Does not include processor - For models with DSTN & TFT displays Retail