[SOLVED] GPU performance dropped

[mahad kiani]

Hello,
Last night me and my brother were playing fifa 09 on my core 2 duo. We played it for half an hour it worked great
today morning when I woke up I turned on my pc and my graphics performance suddenly dropped .The game was all laggy my GPU is amd radeon 5450 I dont know why it happened I checked my temp and it didn't exceded 55 C if someone knows this problem please reply me .

 

[Lutfij]

When posting a thread of troubleshooting nature, it's customary to include your full system's specs. Please list them like so:
CPU:
Motherboard:
Ram:
SSD/HDD:
GPU:
PSU:
Chassis:
OS:

We will also need to know the age of the PSU and the version for your OS if you're on Windows 10.

 

[mahad kiani]

Its a HP DC 7900.Its has a core 2 duo E8400 4 GB of ram with 80 GB of hard drive and windows 64 bit.It has a Gpu of amd ati 5450