Question PC shuts down at the start of league of legends game

[AsaalMH]

Hello, so I've been facing this issue for a while now . whenever I was using LUMION or League of legends my pc randomly crashes and shuts off. i thought the issue was with my memory so I had the original hard drive removed and replaced, but the issue remained. i tried reducing the resolution in the application setting but the same happened. the fac speed increases then it overheats and shuts down.
im a noob when it comes to software or hardware and i dont know what kind of info you need me to provide, please tell me if you need anything else.. THANK YOUU!!

HARDWARE
Graphics Card Manufacturer - Powered by AMD
Graphics Chipset - AMD Radeon R5 M335
Device ID - 6660
Vendor ID - 1002
SubSystem ID - 06B2
SubSystem Vendor ID - 1028
Revision ID - 81
Bus Type - PCI Express 3.0
Current Bus Settings - PCI Express 3.0 x4
BIOS Version - 015.048.000.065
BIOS Part Number - BR46408.001
BIOS Date - 2015/06/29 02:19
Memory Size - 4096 MB
Memory Type - DDR3
Memory Clock - 900 MHz
Core Clock - 1070 MHz
Total Memory Bandwidth - 14 GByte/s
Memory Bit Rate - 1.80 Gbps
2D Driver File Path - /REGISTRY/MACHINE/SYSTEM/ControlSet001/Control/Class/{4d36e968-e325-11ce-bfc1-08002be10318}/0002

SOFTWARE
Radeon Settings Version - 2017.1026.2023.34870
Driver Packaging Version - 17.40.2011-171026a-320070C-Dell
Provider - Advanced Micro Devices, Inc.
2D Driver Version - 8.1.1.1624
Direct3D® Version - 9.14.10.01304
OpenGL® Version - 6.14.10.13497
OpenCL™ Version - 23.20.768.12
AMD Mantle Version - 9.1.10.0228
AMD Mantle API Version - 102400
AMD Audio Driver Version - Not Available
Vulkan™ Driver Version - 1.7.0
Vulkan™ API Version - 1.0.54

PLEASE HELP

 

[rgd1101]

so a laptop?

 

[AsaalMH]

so a laptop?

yess

 

[AsaalMH]

so a laptop?

System Model Inspiron 5559
System Type x64-based PC
System SKU 06B2
Processor Intel(R) Core(TM) i7-6500U CPU @ 2.50GHz, 2592 Mhz, 2 Core(s), 4 Logical Processor(s)
BIOS Version/Date Dell Inc. 1.0.6, 9/16/2015
Installed Memory (RAM) 16.0 GB (15.9 GB usable)

 

[rgd1101]

running on battery or plugin?

 

[AsaalMH]

running on battery or plugin?

plugin

 

[rgd1101]

what the cpu/gpu temp during the game?

 

[AsaalMH]

what the cpu/gpu temp during the game?

GPU temp reached 100 c and then it shut down

 

[AsaalMH]

I fixed the issue..
I switched the GPU settings for the app to power saving instead of high performance, now the temp is 58c at its peak..its working now
thanks though!