1. Computer problem? Tech Support Guy is completely free -- paid for by advertisers and donations. Click here to join today! If you're new to Tech Support Guy, we highly recommend that you visit our Guide for New Members.

Solved: PC shuts down even in POST or BIOS

Discussion in 'Hardware' started by tech_lizard, Jun 21, 2012.

Thread Status:
Not open for further replies.
  1. tech_lizard

    tech_lizard Thread Starter

    Joined:
    Mar 6, 2006
    Messages:
    48
    I have a K8VGA-M motherboard, AMD Sempron 3400+ CPU, 600watt psu, 1.5GB memory, 120GB HD, nvidia 6200 GC and the usual mouse, keyboard, etc.

    My problems started this morning. Used PC last nite and it was fine. This morning it shut down on me after about 2-3 minutes then restarted again a few seconds later then shut down again. The shutdown is sudden like a loss of power. Occasionally their was a few beeps like a 'nee naw nee naw nee naw' until I switched the damn power unit off. I opened the case and checked everything. Removed the CPU and checked the paste which I applied about a month ago and put the CPU back, fan plugged in, etc. All looked good but again it shut down and this time it didn`t even POST and the keyboard (USB based) would not work. Changed the keyboard for a plug in one (not USB) and this one worked yet the PC would not reach POST. Removed the 512MB chip and tried again. Got to POST then it switched off again. Replaced the chip and removed the 1GB. Same again.

    The PC takes a good 5-10 seconds to come on once the PC is switched on, the network lights for the Ethernet cable come on, go off then come back on again before the PC powers up and shuts off. I am at a total loss as it worked ok yesterday.

    The PSU was from Ebay as was the mobo.
     
  2. tech_lizard

    tech_lizard Thread Starter

    Joined:
    Mar 6, 2006
    Messages:
    48
    Quick addendum.

    I just applied new paste to the thermals and cleaned the fan heat sink, removed the memory sticks again and the graphics card. I tested it sans everything and got the beeps due to having no memory sticks in so all good there. I reinstalled the memory sticks and started her up. About 20 seconds went by and it shut off again. No luck again.
     
As Seen On
As Seen On...

Welcome to Tech Support Guy!

Are you looking for the solution to your computer problem? Join our site today to ask your question. This site is completely free -- paid for by advertisers and donations.

If you're not already familiar with forums, watch our Welcome Guide to get started.

Join over 733,556 other people just like you!

Loading...
Thread Status:
Not open for further replies.

Short URL to this thread: https://techguy.org/1057964

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice