PC shutting down help?

9 replies [Last post]
KoutaFG
KoutaFG's picture
Offline
Joined: 04/30/2009
Posts: 499

Alright, I thought I was done with this but it would seem my computer is shutting down when ever I put any real use to it, sense I'm a gamer, that's basically what I have it for, about a month, maybe a month and a half ago, I upgraded my system, replacing the motherboard, Ram, Hardrive and video card, keeping the PSU, CPU and the hardrive as a storage unit,

About 40 minutes to an our ago, or so, my computer shut it self down but booted right back up, the first time, the second time it shut down but I think, I think, I'm not sure, but when it shut it self down the second time it seemed like it tried to stay powered but failed, then would not turn on until now.

I'm thinking its my power supply, I have a corsair 850w but the fact that it is now on makes me wonder if it is, so I'm asking for thoughts on what it might be, every thing in it now is basically new, apart from the CPU and the power supply, oh and the harddrive.

When I tried to turn it on the second time it shut down, nothing turned on, got no responds what so ever, no fans, nothing, I wanna say its the power supply but part of me says it could be the motherboard but its brand new so...

Any thoughts?

Thanks!

ASRock 990FX Extreme3 CPU: Phenom II X4 945e 3.0 Ram:(2 x 4GB DDR3 ) GPU : HIS 2GB 6950 PSU: Corsair 850w

Vortex2012
Vortex2012's picture
Offline
Joined: 06/09/2010
Posts: 35

Have you overclocked anything?

Intel Core i7 2600K @4.8Ghz | Corsair H100 push/pull | MSI Z68-GD80 | 8GB G.Skill RipjawsX @1600mhz 7-8-7-24 | 2x MSI GTX 580 Lightning Xtreme Editions in SLI | 240GB Patriot Wildfire SSD | 2x 1TB WD Caviar Black in RAID 0 (2TB) | 320GB Hitachi Deskstar | LG Bluray Drive | ASUS Xonar Essence STX | Polk Audio 2.1 speaker system | Sennheiser 558 headphones | Corsair AX1200 | Cooler Master HAF X | Windows 7 Professional 64-bit | Acer P243W 24" monitor (1920x1200)

KoutaFG
KoutaFG's picture
Offline
Joined: 04/30/2009
Posts: 499

Vortex2012 wrote:Have you overclocked anything?

Nope, nothing and the case has 5 120m fans and one 200m fan

eire1274
eire1274's picture
Offline
Joined: 09/12/2003
Posts: 1154

Looking at your system config (based on your signature) it looks like you are WAY over powered for the hardware you have, unless you are running a big bank of SATA drives. You are closer to the 550W to 600W mark. Believe it or not, having too much "extra breathing room" in a PC power supply is not a good thing, as the PSU will have to reconvert all of that extra generated power, which causes heat and component stress. Safely, you want to be within 20% (example, a 300W requirement could safely be met by 390W (90=300*.20), as 20% is essentially the electronically safe limit. You likely are close to 40% surplus, and this often does burn PSUs out quickly.

Nick McDermott

Dreamer-Boy
Dreamer-Boy's picture
Offline
Joined: 10/21/2008
Posts: 928

Have you applied thermal paste to your CPU?

[SIGPIC]-Dreamer-Boy's[/SIGPIC]

KoutaFG
KoutaFG's picture
Offline
Joined: 04/30/2009
Posts: 499

Dreamer-Boy wrote:Have you applied thermal paste to your CPU?

Yes, did a very thin layer of articsilver 5, watched many videos on youtube before doing so, so I'm pretty sure I did that right, plus I've been watching my temps and I've yet to have one part go past 60c both idle and under load.

KoutaFG
KoutaFG's picture
Offline
Joined: 04/30/2009
Posts: 499

That was a thought I had, I think I'll just get a smaller psu, been wanting to get a modular PSU, sense my case has hardly any room at all behind the mobo.

KoutaFG
KoutaFG's picture
Offline
Joined: 04/30/2009
Posts: 499

Though I don't plan to buy any more hard drives, I do plan to buy a second video card for crossfire, a second 6950, newegg suggests I get a powersupply that's at least 750w if I crossfire, 500w if I only have one.

KoutaFG
KoutaFG's picture
Offline
Joined: 04/30/2009
Posts: 499

Okay, this is odd, I just woke up from a mmmm, 3 or 4 hour nap and my computer would not turn on, waited and waited then just as I gave up and told myself that the power supply finally completely gave out . . . With out me hitting the power button again, the computer turned on and seems to be running fine...

So, now I'm pretty sure its the power supply that's dieing but I've never had anything but a video card in my computer die on me before so I couldn't say for sure but

What do you guys think, is it the power supply or could it be something else?

By the way, this is the power supply, I'm considering, to replace my current one.
http://www.newegg.com/Product/Product.aspx?Item=N82E16817153127

Edit: Also, is it safe for me to be using my computer right now with how faulty the power supply is right now?

Edit: I didn't notice my sig was outdated, I just updated it with my current setup.

hellblazer55
hellblazer55's picture
Offline
Joined: 12/05/2008
Posts: 91

I would say leave the computer off and unplugged, even thou there are safe guards built in the the power supply, its not worth the risk of a surge and frying all components.

Rig| Coolermaster HAF X NVIDIA Edition | ASUS Sabertooth 990FX AMD AM3+ TUF Motherboard | AMD Phenom II 1100T Black Edition Six Core Processor -OC 4.23GHz | G.SKILL Ripjaws X F3 1866 8GB | Corsair Neutron GTX Series 2.5" Solid State Drive - 120GB | Western Digital Caviar Black Hard Drive - 1.0 TB x 2 | ASUS Blue Ray & DVD Multi | EVGA GeForce GTX 560 Superclocked Video Card - 2GB | Corsair Hydro H100 CPU Liquid Cooler | Corsair Professional HX1000W