Announcement

Collapse
No announcement yet.

AOpen (Digital Engine) i45GMx-HG - Powers on, no POST

Collapse
X
Collapse
 
  • Page of 1
  • Filter
  • Time
  • Show
Clear All
new posts
Previous template Next
    #1

    AOpen (Digital Engine) i45GMx-HG - Powers on, no POST

    Just grabbed this out of the e-waste bin at work.

    Digital Engine DE45-HG MiniPC

    Plugged in, press power. Power light lights, CPU fan spins, no output from either video port. After ~30secs, the CPU fan spins faster. About 30 seconds after that, power off, then the process starts over.

    I don't see any obvious defects in the motherboard, and I've tested the CPU and the memory with a laptop that uses the same CPU socket (Socket P).

    I'm honestly out of ideas with this one. I'm suspecting BIOS eeprom failure, and I've removed what I believe is the BIOS chip. MX25L1605DM2

    Anyone have any suggestions?
    Attached Files
    Tags: None
    #2
    Re: AOpen (Digital Engine) i45GMx-HG - Powers on, no POST

    For Reference - Latest BIOS package from aopen.com
    Attached Files

    Comment

      #3
      Re: AOpen (Digital Engine) i45GMx-HG - Powers on, no POST

      So I found a laptop chassis that shares the same components.
      CPU - Pentium T4400 (Socket P) vs. Core2Duo T9400 (Socket P)
      Northbridge - Intel GM45 vs. Intel GM45
      Southbridge - AF82801 IBM vs. AF82801 IFM
      EEPROM - MX 25L1605DM2 vs. MX 25L3205DM2I

      I swapped out the eeprom IC's with no change. Maybe I'm on the wrong track?

      Comment

        #4
        Re: AOpen (Digital Engine) i45GMx-HG - Powers on, no POST

        power supply voltages good ?
        did you reset bios by removing battery for a while ?

        Comment

          #5
          Re: AOpen (Digital Engine) i45GMx-HG - Powers on, no POST

          I don't have a schematic for this board, but I do have one for the donor chassis.

          The mobo uses voltage from a seperate power brick, the brick itself is putting out 20V. Not sure where to test on the board itself for the independant reference voltages.

          I have removed, and reinstalled the battery, but only for ~30 seconds. Should I have waited longer?

          Comment

            #6
            Re: AOpen (Digital Engine) i45GMx-HG - Powers on, no POST

            sometimes there are pins to short after removing the battery .
            i would leave battery out for a few minutes

            Comment

              #7
              Re: AOpen (Digital Engine) i45GMx-HG - Powers on, no POST

              Originally posted by fuxxy View Post
              For Reference - Latest BIOS package from aopen.com
              do you have a 64bit version of afuwin?

              Comment

              Previous template Next
              Working...