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Comp will not boot to POST


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#1 playboidee

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Posted 28 October 2008 - 04:02 PM

Sorry this might seem like another topic thats been covered, but after all my reading other posts, they seem to lean towards another solution that I'm not sure applies to my situation.

I've had my custom computer that I built for ~4yrs. Always worked fine. But now got some problems.

Around 1 month ago, I noticed my comp would restart it self for no reason. I would say it happned once a week, so didnt really bother me. Well a week ago, I cleaned and reseated all components and installed a 2nd DVD ROM drive. Computer worked normal until 2 days ago. I woke up that morning and my computer was running but nothing was on the screen. Tried moving my mouse and pressing keys thinking it went to sleep, but no response. So I restarted the computer and now the POST screen will not even load. My fans are running (CPU FAN, POWER SUPPLY FAN). But I get no video of any kind.

My Comp :

Intel D915GAV (has onboard video)
Intel Pentium 4 3.0GHZ (Or maybe 3.8GHZ Not to sure.)
350W Power Supply
2 SATA HDs (80GB, 400GB)
1 PATA HD (120GB)
1 DVD RW Drive (Samsung)
1 DVD ROW Drive (Samsung)
2 DDR RAM's x 512MB (Kingston and Corsair)
1 Video Card (GeForce I think)

So these are the things I've checked :

1. Switched to the onboard video. (Thinking maybe the video card went bad) Still no POST screen.
2. Unplugged some/all components. (Thinking maybe my Power Supply overloaded). Still no POST screen.
3. Reseated RAM and switched with another. Still no POST screen.
4. Reseated CPU and CPU Fan/Heatsink. Still no POST screen.
5. I hear no beeps from the onboard speaker indicating possible problems.
6. Installed new thermal compound and removed the CMOS battery for 30min Still no POST screen.

Questions :

1. Could this problem happen due to insufficient thermal compound between the CPU and CPU Heatsink?
2. Could this problem be that my Power Supply is bad. (Maybe working at a low voltage?)

I really hope that my CPU or Motherboard didnt "die".

Any help/suggestions is appreciated.

Edited by playboidee, 29 October 2008 - 01:09 PM.


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#2 rigacci

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Posted 29 October 2008 - 02:08 PM

You said that this all happened after you installed an additional DV drive. It could very well be that your power supply does not have the amps necessary to power everything. So, in order to give it enough amps, the voltage gets lowered, which then affects the computer just like yours is being.

What happens if you remove the power and data from the new DVD? Does it start to work again?

The power supply is probably not big enough. You need to consider that many companies over-rate their power supplies. It's not 'false' info but just different ways to caculate.

If the computer is important to you, get a good power supply, 400-500 watts.

Good luck.

DR

#3 hamluis

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Posted 29 October 2008 - 03:08 PM

FWIW:

Power Supply Troubleshooting - http://www.informit.com/articles/article.a...5&seqNum=12

Video Cards and the Symptoms of a weak power supply - Yahoo! Answers - http://answers.yahoo.com/question/index?qi...18160249AAqUXUv

Louis

#4 playboidee

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Posted 29 October 2008 - 04:42 PM

To rigacci:

The problem didnt happen EXACTLY after I installed the new DVD ROW drive. I even only hooked up just the primary HD by itself and still didnt get a POST screen or MB beeps.

To hamluis:

Thanks for the links. I think that might explain my random restarts.

I got a hold of a working PSU unit that I am going to try when I get home from work. If that doesnt fix the problem, then off to the store to buy a new CPU/MB.

#5 playboidee

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Posted 11 January 2009 - 09:17 PM

Well I figured out that one of my memory sticks was bad. Replaced and it works fine now.

#6 hamluis

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Posted 12 January 2009 - 08:12 AM

Nice troubleshooting, happy computing :thumbsup:.

Louis

#7 playboidee

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Posted 12 January 2009 - 12:12 PM

Nice troubleshooting, happy computing :flowers:.

Louis


Ya but now I got another problem! :thumbsup:

But I will make a new thread about it when I get home.




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