Results 1 to 8 of 8

Thread: CPU Dead!?!? need your input...

  1. #1
    Newbie
    Join Date
    Sep 2009
    Posts
    16

    CPU Dead!?!? need your input...

    Hi guys,
    I think I toasted the mobo ( not sure how) - please see if you have ideas or suggestions before hunting a new board-

    This is a D945GCLF2, 2 gbDDR2 in a Mo-Co-So MCS-350 frame WD 320 Scorpio Blue running XP Pro and CF. Its all basically brand new and never even final installed yet. Burned in onthe bench witht he factory built PICO 90 and everything was fine. Moved to the shop and powered with M4-ATX-250 set initially to act as stand ATX supply running from bench DC power supply. Worked fine one day and you know the rest. I am an avionics tech so I took the normal precautions and don't believe I dropped a turd in CPU so...

    Restored the unit to the Pico 90 and the CPU fan and PSU light comes on. With no HD installed and the RAM having been reseated, I don't even get the Intel logo like I did b4 installing the HD. I suspect death of some variety.

    Anyone with a similar experience or that can give any insight?

    TIA Larz

  2. #2
    Newbie
    Join Date
    Jul 2009
    Location
    Around St. Louis
    Posts
    8
    If there is no pc speaker, hook one up. (not the sound card speaker, but the one using the headers on the motherboard.) If it is hooked up and doesn't beep, it's more then likely the processor or motherboard. Check to see if any capacitors are blown on the motherboard as that is the likely thing to break on one.

    If it does beep, then it means that the motherboard is more then likely not dead. 3 beeps is normally ram. If you have two sticks, take one out and try again, if it doesn't work, swap sticks of ram and try again. If it still doesn't turn on and beeps, you'd have to find who made the bios and get the beep codes for that company. More then likely if it beeps, it can be fixed, but you HAVE to have the case speaker hooked up in order to know if it's beeping. It won't turn fans on or anything if it's throwing a beep code in 99% of motherboards.

  3. #3
    MySQL Error soundman98's Avatar
    Join Date
    Jan 2008
    Location
    on the border of northern IL/IN
    Posts
    5,820
    most of these smaller boards don't have a bios speaker output(though it would make it easier)..

    try removing the p4 plug and see if it powers up-- sometimes the processor will short the power supply, and cause the problem you are describing.

    you can also try removing the ram and see if it powers up to test for a bad stick

  4. #4
    FLAC
    Join Date
    Jan 2008
    Location
    Dartmouth, MA
    Posts
    914
    Have you tried a normal atx power supply?
    My Nearly Complete Car:
    http://www.mp3car.com/vbulletin/show...ed-car-pc.html

    Micro Control Center... Control Your Car Across the Internet
    http://www.mp3car.com/fusion-brain/1...-internet.html

    Website: (It's a work in progress, really. All my projects have taken me from ever really developing it.)
    http://paulfurtado.com/

  5. #5
    Newbie
    Join Date
    Jul 2009
    Location
    Around St. Louis
    Posts
    8
    Manual for that model says "These beep codes can be heard through a
    speaker attached to the board’s line out jack (see Figure 2, B on page 14)."

    So, plug in a speaker or headphones to the blue onboard sound plug to get beep codes. 3 beeps for ram, 4 alternating high and low beeps for thermal issues.

    Found on page 45 of your manual which can be found here:
    http://downloadmirror.intel.com/1696...02_English.pdf

    @soundman98: I didn't know some smaller boards didn't have case speakers. I figured it was practically required to have it. I've only really messed with full desktops(smallest probably micro-atx size motherboards) or laptops (which use built in sound card speakers). But it's also my understanding that there are generally work around such as the one shown above if there aren't headers.

  6. #6
    Newbie
    Join Date
    Sep 2009
    Posts
    16
    Thanks so far guys will try to see if we get beep codes-

    In connecting the wall power supply to the Pico 90 I get a normal keyboard lights flash and power led on the mobo. Upon using the power button on the unit the fan spins up and we get solid blue power on the panel.
    Removed ram and repowered unit -I get a 3 blinks on the blue panel LED- I suspect these are LED "beep codes'.

    Sad thing is I get nothing on the video- not even a tickle of a pixel on two monitors(known good).

    I'll poke at it some more today!

    Thanks!
    Larz

  7. #7
    MySQL Error soundman98's Avatar
    Join Date
    Jan 2008
    Location
    on the border of northern IL/IN
    Posts
    5,820
    i missed the part where you were using a pico power supply---the pico power supply line needs regulated power input--it has no onboard regulation-- so connecting it to car power will likely mess up the board, as the voltages range widely from 9-16 volts in a 12 volt system, and computers don't like varying ranges...

  8. #8
    Newbie
    Join Date
    Sep 2009
    Posts
    16
    Yeah, The Pico has only been run from the wall-wart and makes an easy PS for inside the house. Only the M4-ATX250 was run from a regulated DC bench supply.
    The supplier Mo-Co-So is sending a new one and will exchange under warranty. I have been very happy with their service and will continue to use them and MP3Car. Both have been very helpful!

    Merry Christmas!

    Larz

Similar Threads

  1. Input Input Input Show Me Your Devices!
    By SjLucky in forum Input Devices
    Replies: 5
    Last Post: 03-07-2012, 03:27 AM
  2. Swype touchscreen input
    By DaveDog in forum Road Runner
    Replies: 7
    Last Post: 02-09-2010, 09:30 PM
  3. Requests
    By CdRsKuLL in forum FreeDrive
    Replies: 118
    Last Post: 08-11-2006, 05:09 AM
  4. HELP, Input Signal to AMP
    By Power_nisse in forum Car Audio
    Replies: 4
    Last Post: 06-22-2005, 11:35 AM
  5. Replies: 6
    Last Post: 03-15-2005, 12:07 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •