So currently I've got a 500w PSU powering my gaming/ work PC. I built this about 3 and a half months ago and at the time i had limited resources but now I'm thinking of changing my case and adding another 500GB 7200RPM HDD, with my new case might also come with 2-3 chassis fans. My specs is CURRENTLY this:
ASUS Motherboard - P8Z77-V LX
1x 500GB Seagate Barrucuda 7200RPM
(4 x 2) 8GB 1600MHZ Kingston RAM
Core i5 3570k CPU overclocked slightly to 4.1Ghz
Galaxy GTX 660 TI - factory overclocked
1x ASUS DVD/CD reader
All this being powered by a 500w PSU (no problems at all with these currently)
My question is would i be able to add another 7200RPM HDD and change the PC case into a better one that has 3 LED chassis fans without changing my PSU??
(Chassis fans come with a fan controller btw, not sure if it matters)
When I plug my machine in to a kill-a-watt, in general usage my power from the wall is about 120 watts, while playing games it's about 160 watts, and if I run a CPU, GPU, and 3xHDD benchmark to peg everything all at 100% it's 220watts. Keep in mind that this is from the wall, and since my power supply is about 80% efficient or so that means in each case the power supply is actually supplying 96, 128, and 176 watts respectively.