| maxburn Canada. June 26 2012 02:28. Posts 34 | Profile # |
Having issue with my computer. As you can see from post title, my computer just shut down after half a second, don't even have time to see bios screen. If i keep the power button down it just keep trying to restart every time it shuts down. I was thinking it might be either a psu or mobo issue. I have an antec 1200 tower, antec neopower 650 blue, evga nforce 780i sli mobo, Intel core 2 duo e8400, evga gtx560ti 448cores, 4 gig of ram. Just wanted some advice on what to do first, i was thinking about going to buy a new psu first at www.microbytes.com you guys can suggest a good psu for about 100$ (can go a little higher if needed, just looking for best bang for buck) also is there another way to diagnose this problem other than switching parts? Like lights on mobo or something?
Thanks for your help, Max |
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 JingleHell United States. June 26 2012 02:34. Posts 11262 | Profile Blog # |
Sounds like some variety of short. Is the PC a new build, or recently changed significantly?
If something isn't shorting across the case or mobo, yes, the PSU is a good thing to try, although there's a way to see if it at least turns on on it's own without a known good model.
http://www.overclock.net/t/96712/how-to-jump-start-a-power-supply-psu-test-a-power-supply-and-components
Just hook the PSU up to something like a fan on it's own, and if it still doesn't start, the PSU is the problem, if it does, there's all kinds of fun options for your troubleshooting pleasure. |
| | http://jinglehelltech.blogspot.com -- Pics of my rig in Profile |
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| Banchan United States. June 26 2012 02:35. Posts 148 | Profile # |
same thing happened to me ~5 months ago. The fans would spin up for ~1-2 seconds then everything would just shut down. Eventually it stopped doing even that. Both the PSU and the motherboard were dead
Your problem is either the PSU or the motherboard though. Jump your PSU and if it starts up properly, just go replace your motherboard. Last edit: 2012-06-26 02:38:06 |
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| maxburn Canada. June 26 2012 02:40. Posts 34 | Profile # |
| I changed my vid card like 2 month ago, also during the half a second, the fan and fan leds light works. |
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| JingleHell United States. June 26 2012 02:42. Posts 11262 | Profile Blog # |
On June 26 2012 02:40 maxburn wrote:
I changed my vid card like 2 month ago, also during the half a second, the fan and fan leds light works.
Well, you could have shorted something while installing the GPU, or your PSU could be trouble and not working with the new GPU, which is why you should try the test I suggested. |
| | http://jinglehelltech.blogspot.com -- Pics of my rig in Profile |
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| maxburn Canada. June 26 2012 02:56. Posts 34 | Profile # |
On June 26 2012 02:42 JingleHell wrote:
Show nested quote +On June 26 2012 02:40 maxburn wrote:
I changed my vid card like 2 month ago, also during the half a second, the fan and fan leds light works.
Well, you could have shorted something while installing the GPU, or your PSU could be trouble and not working with the new GPU, which is why you should try the test I suggested.
I always turn the psu switch off or remove the power cable when i install a new hardware in my comp so there is no way i could have shorted something. Even if a short hapenned, it would not have lasted 2 month imo. Right? Also, does the link from overclock.net show me how to jump my psu?Last edit: 2012-06-26 02:59:52 |
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| JingleHell United States. June 26 2012 03:23. Posts 11262 | Profile Blog # |
Since you're not interested in reading references...
Yes a short can "last" for two months, and if you can't click a link and see, then try reading the last bit where it says "how-to-jump-start-a-power-supply-psu-test-a-power-supply-and-components" before asking if the link shows you "how-to-jump-start-a-power-supply-psu-test-a-power-supply-and-components"?
And unplugging the PC or turning it off have nothing to do with a short caused by a cable touching the wrong thing. |
| | http://jinglehelltech.blogspot.com -- Pics of my rig in Profile |
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| maxburn Canada. June 26 2012 03:32. Posts 34 | Profile # |
| I am reading it right now and just removed the psu from mobo |
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| maxburn Canada. June 26 2012 03:55. Posts 34 | Profile # |
| Ok, all my 6 pin connectors work on psu (the fan was working in all 5 connector outs) now how do i know if its not something in the psu that send current to any other wire in my 24 pin connector that is bad? Is thé only way to know is change my mobo? Also if i change my mobo i will probably need a new cpu since socket 775 mobo are quite obsolete now right? |
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| JingleHell United States. June 26 2012 03:59. Posts 11262 | Profile Blog # |
Actually, you can't be 100% sure it's not the PSU, that's just one way to test without proper equipment. However, with a decent model PSU, odds are ok that it's not the PSU. Could be motherboard, could be CPU, could be that your PSU decided to die spectacularly and take some or all of the above with it.
It could also be that a cable is touching something it shouldn't, or not everything is connected quite as properly as it should be. |
| | http://jinglehelltech.blogspot.com -- Pics of my rig in Profile |
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| maxburn Canada. June 26 2012 04:00. Posts 34 | Profile # |
| Wouldn't want to fry a new mobo because of a faulty psu. |
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| JingleHell United States. June 26 2012 04:02. Posts 11262 | Profile Blog # |
And isn't that just the joy of it. At this point, unless you've got means to test things properly, or the budget to just throw money at new shit until it works, I'd seriously suggest finding a local place with a good reputation and getting the PSU tested.
Of course, you could try reconnecting everything, maybe follow a tutorial, and see if things suddenly start working by... divine intervention, since I'm sure everything was connected perfectly the first time. |
| | http://jinglehelltech.blogspot.com -- Pics of my rig in Profile |
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| maxburn Canada. June 26 2012 04:07. Posts 34 | Profile # |
| Wellington would you call an antec neopower 650w blue a decent psu? Should i take the chance, i know my way around a comp but i wouldn't call me a tech wiz by any mean. That is why i am looking for advice from u guys, what would you do next? I dont want to take it to the comp store since i don't want them to put lame generic parts in my comp. Especially a mobo. |
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| maxburn Canada. June 26 2012 04:08. Posts 34 | Profile # |
| Lol at autocorrect, ment well instead of Wellington |
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| maxburn Canada. June 26 2012 04:19. Posts 34 | Profile # |
| Aight well just called the place where i get my parts from (microbytes), they charge 45$ for diagnosis, they also told me it could be a ram issue so i'll try removing and switching my ram around to see if anything changes, well replugging of comp is starting, keeping you updated till i fix the issue. |
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| Gono Canada. June 26 2012 04:23. Posts 132 | Profile # |
| I'm having same problem RIGHT NOW. It turns on, fans spin, doesnt post, shuts off. Try taking all the parts out of the case and running it, that's what I'm doing at the moment and it runs fine. I assume there is some type of metal touching the motherboard inside my case that is making it shut off before it shorts and gets destroyed, you could have the same problem. |
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| maxburn Canada. June 26 2012 04:50. Posts 34 | Profile # |
| U mean removing the mobo, psu, dvd, hd from the case and plugging everything out of the case and try to make it run out of case? |
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| Gono Canada. June 26 2012 05:01. Posts 132 | Profile # |
| yes, the less parts involved the easier it is to narrow it down either way Last edit: 2012-06-26 05:02:15 |
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