Ask Experts Questions for FREE Help !
Ask
    Kavans's Avatar
    Kavans Posts: 3, Reputation: 1
    New Member
    		  
    #1

    Jul 4, 2005, 10:37 PM
    All of Sudden... Computer Won't Start!!
    Hi,

    Yesterday I was working on my PC for couple of hrs. After I was done, I switched it off and left for some work. When I came back and tried to switch it on.. it won't start.

    No fans wotsoever.. no cpu fan, no chasis fan, no smps fan. I only see a small led lighting up on motherboard. That's it! Nothing else.

    Same thing happened 6 months back.. that time processor came loose... I reinstalled it.. and it was fine. But this time, I tried almost everything.. nothing seems to be working.

    1. I reinstalled RAM and Processor... no use
    2. I took out all optional components.. all cards... drives.. ide... and left only motherboard, processor and RAM. Still its dead.

    Is there anything else I can do to find out what the hell is wrong with it?

    What I don't understand it is.. why won't smps fan start? Is it connected to motherboard.. even last time... when same thing happened... smps fan was down.. so might be connected to motherboard somehow.

    Can I check my SMPS in someway using multimeter?

    What else I can do?

    =============================
    My System Config: P4 3.2 GHz with HT, Intel 875BZ motherboard, Antec Sonata II Tower, Kingston 512 MB RAM

    HELP!!

    Thanks.
    LTheobald's Avatar
    LTheobald Posts: 1,051, Reputation: 127
    Ultra Member
    		  
    #2

    Jul 5, 2005, 01:09 AM
    I'm no hardware guru so can somebody tell me what a SMPS fan is?

    Well from what you've told us, something has got fried. My guess would be the power supply. Try testing the PC with a different PSU.
    fredg's Avatar
    fredg Posts: 4,926, Reputation: 674
    Ultra Member
    		  
    #3

    Jul 5, 2005, 05:28 AM
    Won't Start
    Hi,
    My guess is the same as the other expert, the power supply.

    One way to test the power supply is pull the plug off the mobo.
    Look at the plug where the hook is on your right side.
    On the left row 2nd terminal up is a +5 volt wire.
    This wire should have +5 volts at all times.
    This is the standby terminal. With a multimeter test to see if you have power. If you do, try disconnecting everything but the HDD and The mobo. See if it boots up.
    If still nothing happens, I would replace the power supply first, as it's the cheaper way to go.
    Best of luck,
    fredg
    Kavans's Avatar
    Kavans Posts: 3, Reputation: 1
    New Member
    		  
    #4

    Jul 6, 2005, 01:06 AM
    It started... just for 1 min.
    Well... I was trying again to get it started... after 30 minutes I gave up. Then all of sudden it started... everything was working fine... I don't know how it happened. After that I decided to put it back in tower.. half way through I decided to retest it and it again won't start.

    Again I took the system out of tower... and reinstalled the cpu... it started. I then switched it off and on again.. w/o touching anything else. It did not start again.

    Can anyone make anything out of it? I have no idea what's wrong it.

    One thing I want to know is how smps works. I tried connection my smps with cd drive... that time my smps was not connection to anything... not to motherboard.. only cdrom. It didn't worked. There was no power to cd rom.

    Is this normal? Do I need to connect smp to motherboard and then connect cdrom or it should work way I tested it?
    LTheobald's Avatar
    LTheobald Posts: 1,051, Reputation: 127
    Ultra Member
    		  
    #5

    Jul 6, 2005, 03:38 AM
    Did you try a different power supply? It sounds like you have a short somewhere. If you haven't tried what Fredq & I suggested - try it.
Not your question? Ask your question View similar questions
 

Add your answer here.


Check out some similar questions!

Computer won't boot [ 11 Answers ]

I have recently been building a new system and finally purchased the cpu a few days ago. At first when I put everything together and booted it up all I got was a blank screen and the hard drive light constantly on as well as all fans spinning. So I took out the lithium battery to reset cmos and it...

HELP! My computer won't boot! [ 3 Answers ]

My computer got extreamly messed up... virus' spyware and such.. I got most of it off or what I knew was there.. except for one virse cssrs.exe and I tried to reboot to finish... and it just kept going in a cycle of 3 screens.. so I turned it off.. and now it won't turn back on. The cpu's lights...

Lawnmower won't start [ 3 Answers ]

I have a murray 12.5 that I just bought from someone , used it for the last couple of months and now it won't start , it sounds like it's dragging I have changed the oil and the gas when I got it but this is the first it's done this. The flywheel does move and it does have oil so it's not locked...

My PC won't start [ 2 Answers ]

Just installed windows xp 3 days ago, Now I put on my PC and it won't start... the lights donot even come on I changed the cords but it still won't work

Computer won't play dvds [ 1 Answers ]

Hi there When I tried to play a dvd on my PC on powerdvd it says 'The powerdvd Direct show decorder filters have not been installed properly' But I never use this and have never unistalled it or anything like that it came with the PC when I bought it 3 years ago and used to work fine , I also...

View more questions Search