Figure 1-3. Bottom View 32. Infrared port (selected models). 36. Battery latch. 33. Battery. 37. Docking port. 34. CD/DVD drive latch. 35. Expansion SDRAM cover. 38. Mini-PCI cover. 39. Hard disk drive retaining screws. HP Pavilion zt1100/xz100 Omnibook xt1000 Product Information 1-5