crimsonstag84 said:It definitely sounds like a motherboard or PSU issue... otherwise, the Intel Pentium G4400 would be weaker than an Intel Core i5-750 in any task utilizing more than two cores.
It might be worth testing the power supply in someone else's rig—or just borrowing a different unit entirely.
I'm aware of that—but look, I only game occasionally, so it’s not exactly a dealbreaker. As for movies, browsing, music, storage, or the occasional session in Photoshop—if I recall correctly, you don't need much more than two cores for that (though I'm not entirely certain about Photoshop). Plus, I have a preference for Intel. Regarding the power supply, it’s an XFX 550 w, just like you figured out. I'd love to test it, but there's a catch: I have nowhere to plug it in. My buddy won't even hear of it, and my other friends are mostly stuck using laptops. And honestly, how much would it even cost to drop the PSU off at a local repair shop just to get it tested?