Computer won't turn on

drasnordrasnor Starship OperatorHawthorne, CA Icrontian
edited July 2007 in Hardware
My main computer just turned off inexplicably during normal usage and won't turn back on. I press the power button and the front LEDs strobe once, fans turn a little, and the machine beeps quietly and turns off. I've been running this system for a couple months in this configuration. Ideas?

Processor: 2x AMD Opteron 248
Motherboard: Supermicro H8DCE
PSU: Antec TruePower II 550W SSI
RAM: 2048 MB (512 x 4) Corsair PC3200 registered ECC
Video: EVGA GeForce 7800GTX 256MB
Hard disk: 2x Segate 400GB SATA
Case: Lian Li PC-V1200B
Other:
SoundBlaster Audigy 2 Platinum
NEC optical drive
D-Link DWL-G520 wireless NIC
SATA hotswap rack

-drasnor :fold:

Comments

  • ThraxThrax 🐌 Austin, TX Icrontian
    edited July 2007
    PSU.
  • bschiebschie
    edited July 2007
    The beeps are an error code usually. Could you describe the beeps?

    IE. How many beeps? Which ones were short? Which ones were long?


    Edit: But Thrax is right... again. It sounds like a PSU
  • drasnordrasnor Starship Operator Hawthorne, CA Icrontian
    edited July 2007
    One quiet beep and it goes down. I'll look into getting a new PSU though it's going to take awhile since no one sells SSI PSUs over the counter.

    -drasnor :fold:
  • ThraxThrax 🐌 Austin, TX Icrontian
    edited July 2007
    Voltmeter the 5v and 12v rails on the ATX connector. See what happens?
  • bschiebschie
    edited July 2007
    Yes, it is a power supply.

    If you look at your motherboard manual (http://www.supermicro.com/manuals/motherboard/nForce2200/MNL-H8DCE.pdf)

    It shows that 1 beep shows that the system to ready to power up.

    EDIT: It's on page 71 btw
  • drasnordrasnor Starship Operator Hawthorne, CA Icrontian
    edited July 2007
    5V pulses to 1V, 12V to about 0.6V before shutdown.

    -drasnor :fold:
  • bschiebschie
    edited July 2007
    Sounds like a dead PSU to me :(
  • ThraxThrax 🐌 Austin, TX Icrontian
    edited July 2007
    Yep. :(
  • IndigoRedIndigoRed Perth Western Australia Icrontian
    edited July 2007
    Wouldn't hurt to go for a higher wattage as well, with what you have there.
  • drasnordrasnor Starship Operator Hawthorne, CA Icrontian
    edited July 2007
    Current PSU tests fine on a PSU tester, voltages look good on the DMM. Found a PC P&C 610W and plugged it into just the mobo. No dice, same behavior.

    -drasnor :fold:
  • drasnordrasnor Starship Operator Hawthorne, CA Icrontian
    edited July 2007
    I don't think I heard the beep code properly at my apartment, but it's "long short" and then off. I'm not finding that one in the AMI BIOS codes.

    -drasnor :fold:
  • the_technocratthe_technocrat IC-MotY1 Indy Icrontian
    edited July 2007
    pull the bad proc, if jumping the bios doesn't work
  • drasnordrasnor Starship Operator Hawthorne, CA Icrontian
    edited July 2007
    Pulled the CMOS battery and put it back in after 4 secs and no change. Tried with each processor in the first socket, every possible combination of memory with all the cards out with the same result. I think my board is dead.

    -drasnor :fold:
  • the_technocratthe_technocrat IC-MotY1 Indy Icrontian
    edited July 2007
    I'd have to agree at this point - at least you tried all of the easier/cheaper stuff first... :-( sorry man
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