system fails to post - any help/advice much appreciated

Discussion in 'CPU, Motherboards and Memory' started by metadaptive, Oct 22, 2006.

  1. metadaptive

    metadaptive Geek Trainee

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    Hi, so I think I might know whats wrong with my system but would really, really, appreciate any help or ideas you knowledgeable people could offer me. Please ask if you need more info than supplied.

    The Set-up:

    AMD Athlon 64 X2 Dual Core 3800+ (Socket 939)
    MSI K8N Neo4 Platinum nForce4 Ultra (Socket 939) PCI-Express Motherboard
    Corsair 2GB DDR XMS3200C2PT TwinX (2x1GB)
    Hitachi Deskstar T7K250 NCQ 250GB SATA HD
    Sapphire ATI Radeon X1800 XT 256MB GDDR3
    Tagan TG530-U15 530WATX2.01 Easycon SLi Compliant Modular Silent PSU
    Arctic Cooling Freezer 64 Pro CPU Cooler

    The Problem:

    So I can home from work today to find my PC (which I had left switched on for I guess about 10hrs) sitting apparently braindead on my desk. The power light remained on and all fans were running but the system wasn't outputting anything out of the video card and was unresponsive to power off using the power button. Flicking the switch on the PSU off then on after a bit, leads to the same situation, ie it fails to POST - no beeps from the speaker but the MSI diagnostic card I have in displays 4 ominous LEDs that according to the manual corresponds to "the D-LED will hang here if the processor is damaged or not installed properly" uh-oh methinks.

    Thing is the rig (while a self build) has been running almost flawlessly stable since april, has not been overclocked for any significant period andwas not at the time the fault developed and was not running hot (i had speedfan running all the time and cpu temp never got above 40 deg C). The only problem/niggle I had with the system was the occasionally grinding loud chipset fan which seems to be a common problem among k8n neo4 owners, and which speedfan was unable to slow down. The development of the fault was not preceeded by any other warning signs such as random crashes etc etc. The only other sin I think I've commited was using the thermal pad that came with my Arctic Cooler rather than artic silver or similar, but I don't see how this would cause this problem with no prior warning...

    I'm guessing either my CPU is fried somehow or my mobo is faulty - can any of you kind people shed any light on what it might be/suggest what I should do try and isolate/fix this.

    many thanks in advance

    tom
     
  2. sabashuali

    sabashuali Ani Ma'amin

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    Hi

    I really feel for you man.... :(
    This sounds a bit like my case....
    I also left the PC on, converting Video overnight.
    In the morning the lights were on but no one was home... no wa a min?

    Lucky for me it was just the mobo which fried.
    I think it was a spike. But I cannot be certain.

    So in the process, I lost my PSU and my mobo.
    Lucky for me, both were under guarantee.

    No easy way to find out I'm afraid. You will need to check with perhaps another PSU. If you still cannot POST it might be your mobo and so forth.
    Good luck and I hope it will be minimal damage...
     
  3. metadaptive

    metadaptive Geek Trainee

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    hey man,

    thanks for the sympathy! here's hoping it's just the mobo - i'm gonna try and stick the cpu in a mates rig to try and find out. I had it running off a surge protected socket but who knows what that really means...

    t
     
  4. sabashuali

    sabashuali Ani Ma'amin

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    [ot]
    Although you are probably better off to have one than not, these surge protectors are really not all that. The only real protection will be achieved by an 'Uninterruptible power supply'
    Uninterruptible power supply - Wikipedia, the free encyclopedia

    Hope it works out for you.[/ot]
     
  5. Swansen

    Swansen The Ninj

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    Yeah if you can't get a machine to boot, it really come down to swapping out parts. Good luck, i know how you feel, every machine i've built i've gotten something that hasn't work and had to mess around for weeks trying to figure out which part is messed up.
     
  6. rtellas

    rtellas Geek Trainee

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    hi, its been a long time since this post opened... but.... today i just got the exact same problem, my k8n neo4 and athlong appear dead, exactly as u described ur problem, did u ever get to fix it? did u find out what the problem was? please if u have any info it would be very appreciated, thank u
     

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