1. Installing Internal Optional DevicesExpress5800/B120f User's Guide58Chapter 2 Preparations1.6.1 NotesNote the followings in the installation or removal of the mezzanine card.• Be careful not to make your hands touch the terminals of the mezzanine card slot directly. If you do not keepit, the oil and/or dirt on the hands may adhere to the terminals to result in contact failure.• For the optional ROMs on the unbootable LAN device, set "Disabled" with the BIOS SETUP utility.• If a bootable mezzanine card (such as Fibre Channel controller or LAN card) is installed, check the bootpriority on the Boot menu of the BIOS SETUP utility.• The slot number for the Type 1 mezzanine card is "MEZ1", and "MEZ2" for Type 2 mezzanine card.• 1000BASE Adapter (4ch) (N8403-077F) can be installed only in the Type 2 mezzanine card slot.1.6.2 InstallationInstall a mezzanine card in mezzanine card slot in the following procedure.Important There are two types of mezzanine card for blade, Type 1 and Type 2.The Type 1 mezzanine card can be installed in either of connectors Type 1 and Type2.The Type 2 mezzanine card can be installed in Type 2 connector only.To install the mezzanine card, start installation from the bottom slot (for Type 1).Note Before installing mezzanine card, make sure that the connection port on the card engageswith the connector on the mezzanine card slot.1. Remove the top cover and air duct according to Chapter 2 (1.3.1 Removal of top cover and 1.3.2Removal of air duct).2. Confirm the position of the slot to install the mezzanine card.