Is there anything I'm missing?

[lolwot]

Since I've never assembled a computer before, I thought it would be unwise to start from scratch. So I purchased a barebones system from Mwave, along with additional components to boost its graphical output.

MWAVE GZA micro ATX Barebone system - MSI K9N6PGM2-V2 nVidia 6150 chipset motherboard / AMD Athlon II 245 CPU / Kingston 2GB memory / nVidia GeForce 6150 VGA / GIGABYTE GZ-PH2A3 ATX case w/480 Watt PS (Retail) (includes 80 mm fan)

KINGSTON KVR800D2N6/2G ValueRAM 2GB 2048MB 240-pin pc2-6400 DDR2 800mhz DIMM desktop memory module (Retail)

XFX HD-477A-YDFC Radeon HD 4770 512MB GDDR5 pci-e 2.0 hdcp ready video card Double Lifetime Manufacturer Warranty (Retail)

HITACHI HDS721010CLA332 / 0F10383 Deskstar 7K1000.C 1TB 7200 RPM 32MB cache SATA 3.0Gb/s 3.5" internal hard drive (Bare Drive) (OEM)=0.5m UV-BLUE SATA CABLE

LG GH22NS50 Black SATA 22X DVD RW Burner (OEM)

I just want to clarify a few things before the parts are delivered.
First, will the 480 watt power supply provide adequate power to the barebones PC as well as the graphics card, hard drive, second RAM stick, and DVD drive?
Also, will the stock fans reliably cool the system, even when running games and HD video?
Otherwise, I'm just wondering if this will likely be able to run recent games at 720p on high with some anti-aliasing at 30 FPS. I only paid $430 for the components, so I don't expect miracles, but from the benchmarks I've seen, I think that would be possible.

 

[CurseTheSky]

480w is plenty for that system, but it highly depends on the actual power supply they give you. Often, barebones sytems (and other cases) come bundled with junk PSUs (Antec is one of the few exceptions). Find out what brand it is and replace it if need be. Trusted brands are Antec (most), Seasonic, Corsair, PC Power & Cooling, and a few others. Some brands, such as Thermaltake, Xigmatek, Silverstone, CoolerMaster, OCZ, and to some extent XFX and BFG, have both units that are excellent, and PSUs that are mediocre at best. If the power supply your system comes with is of questionable quality, I recommend and Antec Earthwatts 380 or 430w, Corsair 400CX or 450VX, Seasonic 350w+, or similar.

As far as cooling ,it only mentions and 80mm fan, and if that's truly all that it includes your system will be starved for air. If possible, add more fans - the larger the better (bigger fan = more air moved for a given amount of noise), though it depends on what the case gives you for mounting locations. Most systems these days come with at least two 120mm fans.

 

[lolwot]

The included 80 mm fan is installed at the back of the case. Do you think adding a single 120 mm fan on one of the sides would reduce the heat to a safe level?

 

[Paperlantern]

The included 80 mm fan is installed at the back of the case. Do you think adding a single 120 mm fan on one of the sides would reduce the heat to a safe level?

More than likely the single 80mm in the back of the case, and the one in the PSU will move _enough_ air throuhg the case, i think "starved for air" is a little dramatic. It will more than likely be just fine for a good long while. However, to ensure the longevity of the machine, I would strive to add at least one more 80mm fan.

 

[lolwot]

Surprisingly, I'm actually having some trouble installing the RAM. The RAM chip that was included with the barebones kit initially was gripped tightly by the clips, but after removing it once or twice, the clips no longer seemed to snap shut. Also, the supplementary RAM I ordered, despite being the same type and capacity, is about twice as large as the RAM that was included in the kit. Based on their specifications, shouldn't these RAM chips be identical?
http://www.mwave.com/mwave/skusearch...iteria=SA02230
https://www.mwave.com/mwave/skusearc...iteria=BA24646
Anyway, slightly "wiggling" the RAM chips at the base of the slots somehow seemed to help, but they still aren't really locked in like the smaller chip was when I first opened the case.

 

[lolwot]

Nevermind the earlier post about RAM not seating properly. I just needed to shift the chips laterally to get the clips to respond. However, now I think I'm having a much worse problem. I started up the computer, and heard no beeps whatsoever. I had replaced the power supply with this 600 w 80+ efficiency PSU: http://www.newegg.com/Product/Produc...82E16817341017
Also, I ensured that the RAM was seated correctly, and that all components, including, of course, the motherboard, were connected to the power source. The DVD drive is operational, so I imagine that the hard drive is as well, but the computer isn't outputting video. What could I have done wrong?