Is my Psu bottlenecking my gpu?

[plopyer10]

Ok so I just built my first system, and I tried playing minecraft for my first game and I only got 60-100 fps on max when I feel like I should be getting a lot more. I'm playing at 1400 res. and I'm running 32 bit xp right now because my win 7 64 bit is coming in tomorrow. The 64 bit should help increase fps right? and cpu temps jump from 40c average to 50 average a couple of minutes into minecraft. Is that ok? Im gonna upgrade my case soon but I can't decide what I should upgrade first: case or psu?

Specs:

Rosewill R218-P-BK Black SECC Steel ATX Mid Tower Computer Case

ASRock Z75 Pro3 LGA 1155 Intel Z75 HDMI SATA 6Gb/s USB 3.0 ATX Intel Motherboard

EVGA 01G-P3-1556-KR GeForce GTX 550 Ti (Fermi) FPB 1GB 192-bit GDDR5 PCI Express 2.0 x16 HDCP Ready SLI Support Video Card

Rosewill Stallion Series RD450-2-SB 450W ATX V2.2 Power Supply

Intel Core i5-2500K Sandy Bridge 3.3GHz (3.7GHz Turbo Boost) LGA 1155 95W Quad-Core Desktop Processor Intel HD Graphics 3000 ...

G.SKILL Ripjaws Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model F3-12800CL9D-8GBRL

Seagate Barracuda ST31000524AS 1TB 7200 RPM SATA 6.0Gb/s 3.5" Internal Hard Drive -Bare Drive

 

[manofchalk]

100FPS is too low for you? I realize its Minecraft, but on a 550Ti thats pretty good. You know that unless you have a 120Hz monitor, an FPS above 60 isnt even displayed right?

That PSU is not bottlenecking the GPU, though it is pretty bad quality. I would replace it ASAP.

 

[kcsmacker]

I agree with Mano. Get a new psu from Seasonic or corsair to replace that thing before it goes out and brings something down with it. Also like Manofchalk said, unless you have a 120 hz monitor you dont need anything above a solid 60+ fps. Also Minecraft is very CPU demand I find. Overclock it could help, but again I would get a new psu first before even thinking about that.

cheers