Wyse Z90QQ7P Thin Client shows "running out of available memory" error message and reboot itself.
It keeps doing this every several minutes after restart.
I tried to use USB to re-image it, but after press P at start up. It did not see booting USB option
There are many reason's why you would get the out of memory error. The title Bar of the memory error will tell you the culprit. If you are running out of FBWF memory, you may want to take a look at any installed programs. If you are running out of RAMDisk memory, you may want to increase the RAMDisk. If you are running out of system memory, you may need to add RAM to the thin client.
Here are some helpful links: