Memory Problems - Lenovo ThinkEdge SE350 V2 User Manual

• The mouse cable is securely connected to the server.
• The mouse device drivers are installed correctly.
• The server and the monitor are turned on.
• The mouse option is enabled in the Setup utility.
2. If you are using a USB mouse and it is connected to a USB hub, disconnect the mouse from the hub and
connect it directly to the server.
3. Replace the mouse.
KVM switch problems
1. Make sure that the KVM switch is supported by your server.
2. Make sure that the KVM switch is powered on correctly.
3. If the keyboard, mouse or monitor can be operated normally with direct connection to the server, then
replace the KVM switch.
USB-device does not work
1. Make sure that:
• The correct USB device driver is installed.
• The operating system supports USB devices.
2. Make sure that the USB configuration options are set correctly in system setup.
Restart the server and press key according to the on-screen instructions to display the LXPM system
setup interface. (For more information, see the "Startup" section in the LXPM documentation compatible
with your server at
https://pubs.lenovo.com/lxpm-overview/
and I/O Ports ➙ USB Configuration.
3. If you are using a USB hub, disconnect the USB device from the hub and connect it directly to the
server.

Memory problems

Use this information to resolve issues related to memory.
Common memory problems
• "Displayed system memory less than installed physical memory" on page 198
• Invalid memory population detected
Displayed system memory less than installed physical memory
Complete the following procedure to solve the problem.
Note: Each time you install or remove a memory module, you must disconnect the server from the power
source; then, wait 10 seconds before restarting the server.
1. Make sure that:
• No error LEDs are lit. See
• No memory module error LEDs are lit on the system board.
• Memory mirrored channel does not account for the discrepancy.
• The memory modules are seated correctly.
• You have installed the correct type of memory module (see
order" on page 41
ThinkEdge SE350 V2 User Guide
198
"Troubleshooting by system LEDs" on page
for requirements).
.) Then, click System Settings ➙ Devices
187.
"Memory module installation rules and