Ok, so
my spec is:
-Core2 Quad Q8200 @2.3Ghz (4 core)
-Asus P5Q REV 1.0
-8GB DDR2 RAM
-120GB Kingston SSD (Sata)
-1TB WD blue HDD 7200/5400 RPM, iI can't remember exactly
-Asus R9 380X (I know it's bottlenecking like hell, but it didn't before)
-RaptoX 500W PSU (It's a little brand, it worked before well)
-I don't know what do you mean under chassis...
-OS: Win 10 Professional 64 bit
System performance:
windows running, 3GB of ram, nothing special, 30% of CPU, because it's a C2Q
while windowed video it's almost the same about 5% CPU performance increasing,
while fullscreen, it jumps a bit, like 30% then 60% then around 45% then 90% I think it's because the bottleneck, but I wanna say again it worked well before!
(I know this pc is a piece of ++++, but I'm upgrading in pieces, and I started with the GPU, because there was a sale of it, and a repeat again it worked well before)