Siemens SIMATIC IPC847E - Page 197

Technical support
B.2 Troubleshooting
SIMATIC IPC847E
Operating Instructions, 10/2018, A5E43920357-AA
197
Problem
Cause
Remedy
Time and date are wrong even
after correctly setting them in
the firmware (BIOS)
The backup battery is dead. Replace the backup battery.
USB device not responding USB ports are deactivated in the
firmware (BIOS)
Use a different USB port or activate the port.
Operating system does not support
XHCI
Activate the firmware setting "PS/2 Emulation" in the
firmware (BIOS) under "Advanced > USB Configura-
tion".
USB-2.0/3.0 device connected
although USB-2.0/3.0 is deactivat-
ed
Activate the USB.
Operating system does not support
the USB interfaces
• Activate the firmware setting "Legacy USB Sup-
port" in the firmware (BIOS) under "Advanced >
USB Configuration".
• For other devices, you need the USB device
drivers for the required operating system.