The hard starting could be a sign of a stressed power supply. But it looks quite new and time to tell its maker that you want it fixed.
All of a sudden my PC has started to lag. My specs are:
-AMD Phenom 2 X4 980 (Quad 3.7 ghz)
-Radeon HD 6970
-8GB DDR3 Ram
-1x 250GB HDD
The specifications of my computer surpass the requirements for the games I want to play. For example: Grand Theft Auto 4 recommends a Phenom 9850 and an HD Radeon 3870. But yet I achieve 40Fps MAX which I cannot play with. Another example is Eu Truck Simulator 2. It recommends an Athlon X2 dual core and a Radeon HD 6670 but yet it stutters like mad. But it's not just gaming that my PC is struggling with at the moment. Browsing the web often causes the machine to freeze for at least 1 minute. Also, for example if I log into to Steam and while it's initializing I close Skype, the machine locks up for again 1 minute.
Also, it takes a long while to get turned on. If I press the power button the machine will make the whirring noise but the keyboard and monitor do not respond. It then continues to rev over and over again without coming on. To get it on I have to turn the PSU switch off and on about three times.
It is getting increasingly annoying and I would appreciate a solution to fix this problem. The graphics card achieves high scores on Passmark along with the CPU.