05-20-2013 08:05 AM - edited 05-20-2013 08:05 AM
I have an i5 x230, win8 pro installed on a crucial m4 msata ssd, 16gb of ram. I lately noticed a sharp drop in battery life. I believe this is due by high cpu utilization when idle, which I see from task manager, and shows the System process hovering above 30% cpu utilization. This goes down when I restart, but comes up again after a while, possibly when coming back from sleep.
Does anyone have any idea about this? I tried to search the knowledge base a bit, but nothing came up.
Solved! Go to Solution.
05-20-2013 11:24 PM
05-21-2013 04:14 PM
Indeed it was risdxc64.sys; I used process explorer to find out. I uninstalled the win 8 driver, and installed back the win 7 driver, and CPU usage is normalized.
Thanks for pointing in the right direction!