I have been using this laptop for a few months, it was working perfectly until last week.
I found watching movies/youtube lagging or low frame rate,
and my fps goes down to 15 from 60 after 10 mins when I play League of Legend.
At first, I would only need to restart my laptop and waited till, "display driver stopped responding and has recovered" is shown.
Then my fps would be fine.
However, now this doesn't happen anymore and my computer lags a lot now.
Time of this report: 6/23/2014, 01:22:39
Machine name: HOKANG
Operating System: Windows 8.1 64-bit (6.3, Build 9600) (9600.winblue_gdr.140330-1035)
Language: English (Regional Setting: English)
System Manufacturer: Dell Inc.
System Model: Inspiron 5537
Processor: Intel(R) Core(TM) i7-4500U CPU @ 1.80GHz (4 CPUs), ~2.4GHz
Memory: 8192MB RAM
Available OS Memory: 8072MB RAM
Page File: 4076MB used, 5276MB available
Windows Dir: C:\Windows
DirectX Version: DirectX 11
DX Setup Parameters: Not found
User DPI Setting: Using System DPI
System DPI Setting: 96 DPI (100 percent)
DWM DPI Scaling: Disabled
DxDiag Version: 6.03.9600.16384 64bit Unicode
Considering the symptoms and background history I believe the computer’s cooling fan or air duct is being affected; it probably needs some cleaning or maintenance. You may want to contact your system manufacturer for technical assistance.