TechSpot

my computer won't turn on, urgent

?

should I....

  1. get a new mobo

    1 vote(s)
    12.5%
  2. get a new set of cables

    0 vote(s)
    0.0%
  3. get a new computer all together

    4 vote(s)
    50.0%
  4. kill clowns

    3 vote(s)
    37.5%
By brendanrivers
Oct 19, 2006
Topic Status:
Not open for further replies.
  1. okay, so I'm new here, hi hello and whatever.

    alright. my computer has always had problems with turning on and whatnot, but usually if i just putzed with the power cable it would eventually turn on. then recently, the power went out while the computer was on. then the computer didn't turn on. if i plugged it in, the green like went on on the mobo, and other than that, the computer didn't do anything. if you pressed the button, jack**** happened. so i ordered a new power source, 512 more ram(dual channel) and a new hdd. so i plug it all in, and it turns on once, but nothing shows up on the monitor at all, the fans were going and all, but nothing on screen. then i turn it off, and now if I push the button nothing happens, except the led light on the front of the case turns on while i'm physically holding the power button down.

    its a dell dimension 8300(i know i'm lazy, i didn't build it)
     
  2. wolfram

    wolfram TechSpot Paladin Posts: 2,605   +9

    Hello and Welcome to Techspot!! :)

    Probably it's a bad mobo, a bad PSU, IDK. Does it beep at all?
    But since it's a Dell PC..........maybe you can build another cheap, way better computer.

    I'm sure someone helpful may find a solution for you. :)

    Regards :wave:
     
  3. brendanrivers

    brendanrivers TS Rookie Topic Starter

    strange

    okay so I read a little bit about this, and i got reminded of the diagnosis lights on the back of the case (labeled A,B,C,D) and when I turn the computer on, none of those lights turn on, which apparently, according to dell means "The Computer is off, or there is a pre-bios failure"


    wtf do I do with a pre bios failure?

    ty.

    /brendan/
     
  4. wolfram

    wolfram TechSpot Paladin Posts: 2,605   +9

    That seems like a PSU failure. What PSU do you have?

    But you said that the fans spin. Am I correct?
     
  5. brendanrivers

    brendanrivers TS Rookie Topic Starter

    Yeah...

    Thing is I just bought a new power source, and just took it out of the box today. I looked it up online and most people agree that dell 8300's are fine with non OEM PSUs, with the exception of having to cut the metal on the back of the case, because OEM dell PSUs look like they are upside down, so the holes are switched in the case (holes for the wire/0-1 switch)


    ty

    /brendan/
     
  6. wolfram

    wolfram TechSpot Paladin Posts: 2,605   +9

    Ah OK. I thought that the Dell 8300 used a special, non ATX compatible PSU.

    What brand is the new PSU, how many watts, and amperage on the +12V rail? That info should be on the PSU's label ;)
     
  7. brendanrivers

    brendanrivers TS Rookie Topic Starter

    ahh

    okay its an "@-Power" PSU, 350watts, .8amps on 12v, 60hertz
     
  8. wolfram

    wolfram TechSpot Paladin Posts: 2,605   +9

    Oh man.... We had an A Power PSU, and it blew up in less than 2 months.... Also, it can't have .8 amps, maybe you looked at -12V. Look at +12V ;)
     
  9. brendanrivers

    brendanrivers TS Rookie Topic Starter

    oh thats crappy, hopefully mine won't go so fast. and yeah my bad, its 16amps.
     
  10. wolfram

    wolfram TechSpot Paladin Posts: 2,605   +9

    Ok, that could be enough for the system. But be careful with it. Our A Power PSU, blew up, and it killed the mobo, and almost killed the processor. :mad:

    Try resseting your BIOS. You need to open up your PC, look at the mobo, and find a coin-shaped battery. Remove it for at least 5 minutes, put it back in, and start your PC again.
    Does it beep now?

    Regards :wave:
     
  11. brendanrivers

    brendanrivers TS Rookie Topic Starter

    i tried that.. kinda

    I already tried that, but I'm a half noob, so I probably did it wrong. First off I unplugged it for like 15 seconds, not 5 minutes, and second off I unplugged the computer first, was that right? Should I wait for the green light on the mobo to go out before taking out the battery?
     
     
  12. wolfram

    wolfram TechSpot Paladin Posts: 2,605   +9

    Yeah, wait for that green light to go out. If you're lucky enough, and have your Dell manual, check it, and reset your BIOS :)
     
  13. wolfram

    wolfram TechSpot Paladin Posts: 2,605   +9

    I just checked your Dell's specs.
    Is it using a: ?
    P4 CPU @ 3.2 Ghz
    1GB RAM
    ATI 9800 PRO??

    If so, maybe that 350W A-Power PSU can't handle the system properly...
     
  14. brendanrivers

    brendanrivers TS Rookie Topic Starter

    its a P4 at 3.2, i just added 512mb to the lacking 256 ram it started with, and its a Geforce 4 fx(9600?) it only had a 250 or 300 watt PSU in it before, so I figured 350 would be better...
     
  15. wolfram

    wolfram TechSpot Paladin Posts: 2,605   +9

    That card must be a Geforce FX 5600. That card is not a power hog, so you should be ok.

    Have you checked what I said above? :)
     
  16. brendanrivers

    brendanrivers TS Rookie Topic Starter

    and i just took the battery out for 5 minutes +, and it didn't do anything didfferent after I put it back in... just the fans going and not even a hard drive spinning.
     
  17. wolfram

    wolfram TechSpot Paladin Posts: 2,605   +9

  18. brendanrivers

    brendanrivers TS Rookie Topic Starter

    no kill

    no kill no beep beep
     
  19. brendanrivers

    brendanrivers TS Rookie Topic Starter

    I figured it out, I just forgot to put one of the cables into the motherboard. the little one out of the PSU. im dumb.
     
  20. wolfram

    wolfram TechSpot Paladin Posts: 2,605   +9

    Ahh, the 4 pin CPU power plug right. Hehe, it won't work without that :)

    I guess I'm dumb too, I didn't remember about that little plug.

    I'm glad that your solved your problem.

    Regards :wave:
     
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