Power Supply or something else?

[combatwombat8d]

So, a couple of days ago I build my first computer. Initially, when doing a breadboard build, my PSU (a LEPA MX-F1 600W) would powered the fans on the CPU and the GPU, but I got no video. I tried an old PSU and got video no problem. Newegg would, of course, only exchange for another LEPA or offer a refund, which would be 0 dollars since I bought a DIY combo, so I figured I would go ahead with the build using the old PSU.

Once everything was in the case, I decided to try the LEPA one more time, and it actually worked this time, video, fans, lights, the whole shebang. Got windows installed, updated the BIOS, blah blah, everything was going fine.

Then I started a game. Skyrim. Ultra High Quality settings. I hear a buzzing noise from the tower and initially can't figure out where it's coming from. When I pause the game, the buzzing stops, get back in the game and it immediately starts buzzing again. Eventually, the whole thing rebooted itself.

At first I thought it was the stock fan on the CPU was causing the CPU to overhead or something, but I checked the temps on the CPU and it was about 60 degrees.

Now, the reviews I have read about the LEPA all suck, and I didn't really want it in the first place, but my question is, is the strain of running a high end game what is causing the buzzing and causing it to reboot? I took the side of the case off while running the game to pinpoint the sound and I am fairly certain it's coming from the PSU, but it's sort of a faint buzz. If so, I'm going to have a long talk with newegg. There is no buzzing at all when casually browsing the web and whatnot.


PowerColor TurboDuo AXR9 270 2GBD5-TDHE/OC Radeon R9 270 2GB 256-Bit GDDR5 PCI Express 3.0 CrossFireX Support Video Card
AMD FX-8350 Black Edition Vishera 8-Core 4.0GHz (4.2GHz Turbo) Socket AM3+ 125W Desktop Processor FD8350FRHKBOX
Seagate Barracuda ST1000DM003 1TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
AMD 970 + SB950 SATA 6Gb/s USB 3.0 ATX AMD Motherboard
G.SKILL Ripjaws X Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800)
LEPA MX-F1 N600-SB 600W ATX CrossFire Power Supply
ADATA Premier Pro SP900 ASP900S3-128GM-C 2.5" 128GB SATA III MLC Internal Solid State Drive (SSD)

 

[amd4lif3]

if your old psu is reliable use that , dont put a cheap psu in your rig it probally rebooted because it detected a problem with the power , thus why cheap psu's strugle at load return the psu use your old one and done

 

[Entomber]

When your GPU and CPU are under load, they draw more power, and it sounds like your PSU can't handle outputting that level of power in a stable manner.

 

[combatwombat8d]

Yeah, thanks for the answers. I would use my old PSU, but I realized when I got everything in the case that the cables weren't long enough to reach their destinations, so I will just talk with newegg about a replacement, hopefully some other brand.

 

[capt_taco]

Any noise coming from the power supply is a bad sign. And the symptoms sound a lot like a power problem, which is two strikes against the PSU.

That system shouldn't come anywhere near stressing a 600W power supply, so my guess is you got one that's a stick of poo. If the old one works, use that and see if the problem goes away.

If you're in the market for a new PSU, today is your lucky day - one of the best ones around is on sale for $25 today and tomorrow only:
http://www.newegg.com/Product/Product.aspx?Item=N82E16817207013

Normally that's more like an $80 unit, but there are $55 worth of discounts and rebates. I would seriously consider picking one up, and worry about fighting with Newegg about that junk PSU later.