3.12 MAINTENANCE ....................................................................................................... 30
3.12.1 Power Supply Unit Replacement ................................................................... 31
3.12.2 Fan Module Replacement .............................................................................. 32
3.12.3 Jumper Settings .............................................................................................. 32
3.12.3.1 Clear CMOS ............................................................................................ 33
3.12.3.2 Flash Descriptor Security Override Jumper ............................................ 34
4 INTERFACE CONNECTORS ................................................................................... 35
4.1 PERIPHERAL INTERFACE CONNECTORS ..................................................................... 36
4.2 INTERNAL PERIPHERAL CONNECTORS ...................................................................... 37
4.2.1 Watchdog Timer Jumper (JP1) ........................................................................ 38
4.2.2 Button & Indicator Connector, Rear Panel (CN1) .......................................... 38
4.2.3 Chassis Intrusion Connector (CASEOPEN1) .................................................. 38
4.2.4 Debug Port Connector (DBG_PORT2) ........................................................... 39
4.2.5 EC Debug Port Connector (CON2) ................................................................. 39
4.2.6 Flash SPI ROM Connector (JSPI1) ................................................................. 40
4.2.7 Flash EC ROM Connector (EC_FLASH1) ...................................................... 40
4.2.8 Flash CPLD Connector (CN2) ........................................................................ 41
4.2.9 System Fan Connectors (SYS_FAN1/2/3/4) ..................................................... 41
4.2.10 Power Button Connector (PWR_BTN1) ........................................................ 41
4.2.11 Power Connector, Riser Card (CPU12V1) .................................................... 42
4.2.12 SATA RAID Key Connector (RAID_KEY1) .................................................... 42
4.2.13 SMBus Connector (SMB2) ............................................................................. 42
4.2.14 TPM Connector (TPM1) ................................................................................ 43
4.2.15 M.2 M-key Slot (NGFF1) ............................................................................... 43
A REGULATORY COMPLIANCE .............................................................................. 45
B SAFETY PRECAUTIONS ......................................................................................... 50
B.1 SAFETY PRECAUTIONS ............................................................................................. 51
B.1.1 General Safety Precautions ............................................................................. 51
B.1.2 Anti-static Precautions .................................................................................... 52
B.1.3 Product Disposal ............................................................................................. 53
B.2 MAINTENANCE AND CLEANING PRECAUTIONS ........................................................ 54
B.2.1 Maintenance and Cleaning .............................................................................. 54
B.2.2 Cleaning Tools ................................................................................................. 54