Lenovo 2394F1U System board assembly and magnesium structure frame, Removal steps of I/O sub card

For access, remove these FRUs in order:

•“1010 Battery pack” on page 68

•“1020 Serial Ultrabay Enhanced device or blank bezel” on page 69

•“1030 Memory module slot cover” on page 70

•“1050 Hard disk drive or solid state drive” on page 72

•“1060 Keyboard” on page 74

•“1080 PCI Express Mini Card for wireless LAN” on page 78

•“1090 PCI Express Mini Card for wireless WAN or mSATA solid state drive” on page 80

•“1100 ExpressCard blank bezel or ExpressCard” on page 84

•“1120 Bluetooth daughter card” on page 88

•“1130 Backup battery” on page 89

•“1140 Smart card, dummy smart card and spacer” on page 90

•“1150 Speaker assembly” on page 91

•“1160 Thermal fan assembly” on page 92

•“1180 LCD unit” on page 96

•“1190 Base cover assembly” on page 99

Removal steps of I/O sub card

1

2

1

Step	Screw (quantity)	Color	Torque
	M2 × 7 mm, wafer-head, nylon-coated (2)	Silver	0.181 Nm
1
			(1.85 kgf-cm)

When installing: Make sure that the connector is attached firmly.

1210 System board assembly and magnesium structure frame

Note: The system board does not contain the Ethernet connector and the ac power connector. For the Ethernet connector, see “1200 I/O sub card” on page 101. The ac power connector is installed on the magnesium structure frame.

For access, remove these FRUs in order:

•“1010 Battery pack” on page 68

•“1020 Serial Ultrabay Enhanced device or blank bezel” on page 69

•“1030 Memory module slot cover” on page 70

•“1040 Memory module (bottom slot)” on page 71

•“1050 Hard disk drive or solid state drive” on page 72

•“1060 Keyboard” on page 74

102Hardware Maintenance Manual