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Rosewill PSU DOA..what now?

Last response: in Components
September 9, 2011 8:48:14 PM

Just built my first ever rig, a $740 budget gaming PC:

1) $110 MOBO: ASRock 970 EXTREME4 AM3+
2) $90 CPU: PhenomII x4 840 on eBay
3) $50 RAM: 2x 4GB G.Skill DDR3
4) $65 HDD: Western Digital WD7502AAEX 750GB 7200 RPM 64MB Cache SATA 6
5) $45 DVD-R: HP 1260i
6) $100 PSU: Rosewill RX850-S-B
7) $130 GPU: Galaxy GT 465
8) $50 Case: Rosewill Challenger
9) $100 OS: Win7 64-bit

Or should say assembled my first rig, as after installing all components, no power. Tried a different cable to a definitely hot lead, but nada. The Rosewill RX850-S-B 850W Continuous @40°C ,80 PLUS Certified, ATX12V v2.2 & EPS12V v2.91, SLI Ready CrossFire Ready apparently DOA. No blue lights, nothing.
I'd had a horrible feeling I'd goofed somewhere on the installation, but used a guide to assembling a PC, and followed it to the letter. Got MOBO connected. Got case switches & data leads connected to it all connected.
But no juice.

As I've never done this before, what now are my options?
Are there any additional hoops I need to go through to RMA the product?
Will I get my money back (preferred!), or just a replacement PSU?

Any advice most appreciated.

More about : rosewill psu doa

a b ) Power supply
September 9, 2011 9:02:46 PM

Make sure there isn't a voltage or on/off switch on the back of the PSU that needs to be flipped. If not I'd try the PSU paper clip trick to be sure the PSU is really DOA.
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September 9, 2011 9:10:47 PM

Thank you dirtyferret. I was planning on SLI'ing two GTX465's though...will 650w be enough?

Thank you beenthere: flipped switch back and forth.. But what is this PSU paper clip trick?

After buying the PSU, did more research and determined that an 80+ Bronze, preferrably from a mfg. like Corsair is the only sensible option...too many horror stories of lesser quality cpu's frying mobo, gpu, etc. to go with anything of questionable quality, just to save a few bucks. So I'd really prefer to return the existing unit. But I burn with curiousity to know if I fu$%ed up the install or no.
September 9, 2011 10:30:16 PM

Did the paperclip trick: the frickin' PSU works!

Oh, what? Guess that means my MOBO's damaged?
Any ideas, links to guides, etc. on troubleshooting MOBO issues?
a b ) Power supply
September 9, 2011 10:30:17 PM

650w is enough if it is from a reputable power supply from companies such as Seasonic, XFX, Corsair, Antec and a select few others.

I will leave you a few very high quality units in the 650-750 range for you to contemplate.

Corsair TX 750 V2

Corsair TX 750M

Seasonic X 650 (super high quality)

Corsair HX 650

XFX Pro 750

XFX 650

Antec HCG 750

Antec EA 750
September 9, 2011 10:36:40 PM

Thanks lilotimz,
used PSU calculator here:
factored in cpu OC'ing to 4000 (which hopefully will be equivalent to a Bulldozer in 2-3 years time), and an extra case fan.

It gave me: "624w (674w recommended)"
So I guess 750w should do it, (as I plan to use this rig for next 4+ years)??

EDIT: Just purchased the CORSAIR Enthusiast Series TX750 80 PLUS BRONZE.
Thanks lilotimz

Best solution

a b ) Power supply
September 9, 2011 11:29:56 PM

NP ... make sure its the V2 one you bought since its a tad more efficient and better quality compared to the older version...

ohh and don't forget to mark best answer...teehee.
September 10, 2011 12:01:44 AM

Best answer selected by hieronymos.