Maximum PC

New system built this Sunday and when I turn the power on after 10 seconds the system shuts down. Everything looks good to have power and starting fine, but just shuts down quickly.

Motherboard Asus P8P67 Deluxe B3 Revision
RAM G.Skill RipJawsX DDR3-1600 PC3-12800 4MBx2
CPU Intel i7 2600
GPU EVGA Nvidia GeForce GTX580
PSU Antec 550 Watt BP550 Plus
DVD Lite-on
HD Western Digital 1T WD1002FAEX
Case Nine Hundred Two

Either the heatsink/fan assembly is not seated properly on the cpu or you have a short between the motherboard and case....usually a standoff in the wrong place.

To find out if it is a short, take the motherboard out of the case, put it on an insulated surface...newspaper or books....plug in one video card, one stick of ram, the plug for the start button and all power cords including for the video card, push the start button, if it posts and does not shut down, you know you have a short when it is mounted in the case.

Nasty

^do that

Also make sure you have all the proper power cables connected to the motherboard (12v 4 pin) and graphics card (12v 6/8pin) and make sure that the rails for the graphics cards are separate. The 580 can draw in 20amps easily. You should be good since you have two 22a rails plus a third at 25a, but the problem is that on the back, it only lists as having one (the red one) as the only rail for a gpu and the other ones aren't labeled as which was are split off on the other 22 or 25. But this is only at load, not on startup, so power draw shouldn't be a factor.

Check to see if you have the motherboard speaker plugged in and if the mobo is throwing you any post codes on boot before it turns off.

It could also be the memory modules are in the wrong set of slots, try moving them around.

I have an old Dell dimension 2400 that does that when the RAM is not compatible, i.e. exceed maximum gb or speed in mhz too high/low.

I believe the RAM should be in slots A2 and B2, those should be the primary slots. Is 550W enough to run that?

Wiked_smart, I was thinking the same thing. According to ASUS's Recommended Power Supply Wattage Calculator (http://support.asus.com/powersupply.aspx?Slanguage=en), he should be using a PSU with a minimum wattage rating of 600W.

That is what the specs call for....minumum 600 watts 42 amps on main rail:

http://www.evga.com/products/moreinfo.a ... 0family&sw

Good catch guys!

Nasty

Good catch yourself, Nastyman! I never even thought to check out the videocard's power requirements.

Three 12V+ rails pushing 69A? PSU may be fine.

The EVGA recommendation is based on a single 12V+ rail design where 42A would be pushed on one rail for the entire system.

Easiest way to find out is to remove the video card and see if the problem persists. If not, re-wire and make sure that the card is on it's OWN rail. On this particular Antec rail 3 pushes the most amperage. If that doesn't work, use molex to PCE-e connection adapters on 2 rails (one on each) and run the card off two.

The wattage is likely fine on an 80 plus PSU. Vendors usually tend toward high minimum estimations. Can't fault them, some folks do use cheap nasty power supplies, but the Antec should provide fairly stable quality power. The card is a beast, it's close...

As long as it isn't an Antec Basiq. Those are somewhat suspect from what I've seen, but for the most part Antec is Good. That 580 is definitely going to need more than what is currently installed though.

The PSU that the OP has selected is the Basiq model. I would suggest nothing less than a 750W for this build as that card can draw a lot of power.

A typical system with a single 580 under load shouldn't draw more than 400W...

http://www.anandtech.com/show/4008/nvid ... gtx-580/17

Read the link I inserted, it says a minimum of 600 watts at 42 amps! So where are you getting 480 watts?

Quote:



Nasty

Nasty, I read the ratings when the card hit the market. It's a heavy duty card, but suggested ratings and real world usage are two totally different things. As a hardware mfg I can recommend you to get an 800W PSU if I think the world is littered with shitty 700W PSU's. Recommending a larger than necessary PSU discourages those who run crappy non-80+ PSU's from buying your part, burning up their gear, and coming around looking for warranty services.

Real world usage is the amount of power the part actually draws off a kill-a-watt. I'm getting 400W from the benchmarks that I posted. Been reading Anand for a very long time, the benches are trustworthy. An average system coupled with a single GTX580 should pull around 400W. Any PSU that can keep at least that on the rail, coupled with a higher peak, and the recommended amperage will work with the gear.

We're talking about a PSU that pushes 69A on three rails, rated for 550W. It's the bare minimum I'd go with, but there's no reason it shouldn't work...unless of course the PSU is failing. I'd spin 2 rails to that card. My hunch is that it's only sitting on 1 right now, and that won't cut it.

Case in point, my Radeon 5830 recommends a 500W PSU...

http://www.amd.com/us/products/desktop/ ... iew.aspx#3

Been running it off a Silverstone single 42A rail 450W for over a year now. Whole system overclocked to the gills and liquid cooled draws less than 300W under full load.

Also consider the fact that the video card isn't even under load when the OP is having problems.

I don't know, I think I would go with the manufactures recommendation. Remember they are trying to get best results for their product and have no vested interest in selling power supplies, just tons of video cards and they want you to come back and buy more later.

The 550 he has is probably only 80% efficient and is producing 440 watts at the max output. Fire up a good game like Skyrim and you will see your lights dim when it starts up. I agree it should at least go to the desktop, but not much else should be expected without issues.

His problem may be something very simple, like the cpu fan/heatsink is not mated right or he installed to many standoffs and one is shorting the motherboard.

...So I would suggest to him to take the motherboard out and place it on an insulated surface and just have the video card and one stick of ram on the board. Plug in all power including the video card power along with the plug for the start button and try to get it to post. If it does post and is stable, you had a short when you mounted the motherboard.

Nasty

I'm having a problem similar to this. Will be monitoring this thread to see whether its possible to fix.