GA-Z77M-D3H Partial schematic found

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • sebulica
    Beginner
    • Mar 2014
    • 50
    • Romania
    #1

    GA-Z77M-D3H Partial schematic found

    Hi,

    I had an issue with a GA-Z77M-D3H and i guess the chipset has an issue,but at least i found a partial schematic that might help others identify issues any fix other boards.

    My issue was that the board did not recognize any usb 2.0 or 3.0,and had no audio working.Some 5v rails were shorted on the board but at least it's good for testing purposes.I managed to remove a shorted ic from a 5v rail and it started ok.The usb rails are going directly to the chipset so there is nothing to do except pci-express usb adapters or pci adapters.

    Did anyone managed to change the chipset before? Do i need to do any programming for it?

    Cheers.
    Attached Files
    Tags: None
    Previous template Next

    Related Topics

    Collapse
    • skwarszczow
      Macbook Pro A2141 020-01700-A GPU Artifacts then no S5 rails
      by skwarszczow
      Hello everyone,

      This is my first post on the forum

      I recently purchased a MacBook A2141 from a colleague at work, which had issues with the dedicated GPU. The system occasionally displayed artifacts on the screen and sometimes experienced kernel panics related to the GPU. Interestingly, applying pressure to the VRAM module would temporarily resolve the artifact issues, which made me optimistic about the ease of repair.

      Board: 020-01700, Config: Intel i7, 512GB SSD, 16GB Ram.



      Before completing the purchase, we decided to erase...
      03-23-2025, 06:04 PM
    • atunguyd
      Acer x163w Monitor PSU schematic
      by atunguyd
      Ii wonder if anyone can help me. I have a Acer x163w monitor which is not powering up. The PSU main capacitor's one leg had completly come off - I replaced it but the PSU is still not outputting DC. I found the monitor in questions service manual here on manuals lib but the schematic in there is a completely different - the schematic shows no mosfet to drive the transformer while the one I have does use a mosfet - also the schematic shows only one optocoupler but mine has two.
      The PSU board is labelled FM-20A02-AAA made by APD as per the image below. I am trying to find a schematic for this...
      03-05-2025, 02:08 PM
    • SarcasticOP
      General question about MacBook power rails for repair.
      by SarcasticOP
      I am looking at an A2337 and found this for the order of power rails and what they do. Can this be confirmed before I dive into hunting down power rails that do not exist or are not neccisary?
      • PPBUS_G3H (12.6V-12.8V)
        • This is the main power rail that supplies power to the entire system. Check this rail first, as it must be present for other power rails to work.
      • PP3V42_G3H (3.42V)
        • This power rail is derived from PPBUS_G3H and is used to power the SMC (System Management Controller) and other essential circuits. It should be present if PPBUS_G3H is working correctly.
      • PPVRTC_G3H (3.3V)
        • This
      ...
      12-12-2024, 05:50 PM
    • Thetechdude
      MSI Ventus RTX 4080 16G Broadview schematic needed
      by Thetechdude
      Hi guys, I'm working on a MSI Ventus RTX 4080 16G. The GPU has 12v, 5v, however what I assume is the 1.8v rail has 1.1v and what I assume to be PEX is 0v. As you may have guessed already there is no Vmem and no Vcore.

      I have looked around in related forum posts for a schematic so Much appreciated if anyone can share a Broadview schematic.

      Thanks.
      07-15-2025, 11:15 AM
    • ianpoultonknights
      Zenbook Flip 15 UX562AI schematic
      by ianpoultonknights
      Had one of these come in for repair with a blown battery and a WiFi issue, battery has been replaced with genuine battery (twice) and won't take a charge works fine on AC, WiFi issue gone away. Looking for a schematic so I can trace the charger circuit UM562F is only one I can find, this is the 562AI model.Had a unit come in for repair — 562AI model — with a blown battery and WiFi issue. WiFi fault has cleared, but battery won’t charge despite replacing it twice with genuine parts. Device operates fine on AC power. Suspect charger circuit fault. Only schematic I’ve found so far is for...
      06-26-2025, 02:41 PM
    • Loading...
    • No more items.
    Working...