msi b450 tomahawk max ms-7c02 rev 1.0

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • Davemack69
    Member
    • Mar 2022
    • 38
    • United Kingdom
    #1

    msi b450 tomahawk max ms-7c02 rev 1.0

    Have a msi b450 tomahawk max no boot dram led lit.
    I don't have any voltage on data lines to ram slots my working board has around 0.38v on data lines this is with no ram installed on both boards.
    I have a tested in diode mode and data lines read same on both boards.
    I have schematic and have tested voltages on all rails concerning the dram.
    Have I lost a voltage somewhere on a buck convertor or is cpu in sleep state maybe?
    Any ideas?
    Last edited by SMDFlea; 05-08-2022, 06:11 AM. Reason: msi b450 tomahawk max
    Tags: None
    • SMDFlea
      Super Moderator
      • Jan 2018
      • 20732
      • UK
      #2
      Re: msi b450 tomahawk max ms-7c02 rev 1.0

      Schematic here https://www.badcaps.net/forum/showpo...19&postcount=2
      All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

        Comment

        Previous template Next

        Related Topics

        Collapse
        • The1
          Gigabyte B450 Aorus Elite CPU Dram led cycle
          by The1
          Hi all,

          I have a Gigabyte B450 Aorus Elite Motherboard.

          Originally would not power on

          Reprogram EC eeprom and Bios eeprom with known good from this forum. Now error lights cycle between CPU and Dram.

          I have checked for shorts on all coils and found none.
          I have checked all power rail voltages and chips for pgood signal all good
          Checked CPU socket and found a damage pin, managed to clean and fix it should be making good contact now but no change. Dram and CPU are known good. Dram sockets look good.
          I can't see any...
          10-09-2023, 05:05 AM
        • howardc64
          TCL 55S425 few horizontal lines, potential failure on both side of panel/buffer board
          by howardc64
          All left and right refers to looking from rear of TV (or looking from front with TV upside down)
          • TV came with vertical bars and no image. Found faulty TVS on left buffer board. Also replaced T-Con (may have damaged the original while hot air removing components, board has slight warp) and have full image but few horizontal lines on the screen. Some of the lines appears to be 2 pixel tall while others are 1 pixel tall.
          • Disconnecting left and right buffer board potentially reveals problems on both sides with different signals (unless this T-Con require jumper like Samsung FB_TRDY1&3) Fault
          ...
          Yesterday, 05:17 PM
        • HYDR
          Capacitor Value on MSI B450 Tomahawk Max
          by HYDR
          Heya guys. So, I recently just got a second hand untested motherboard from flea market. When I cleaned it, I think I ripped a capacitor near the CPU socket, I really want to fix it. I'm looking for guidance, thank you...
          2 Photos
          02-01-2025, 06:27 AM
        • Gobbla
          b450 tomahawk max - dead
          by Gobbla
          hello everyone
          I got my hands on b450 tomahawk max - dead no power no post
          There is no short or any other indication of fault - no spillage no burnt
          I tried 750w power supply but still nothing - shorted correct pin but still no lights (they are some led at back and one small at front - test one)
          I found someone selling bios chips - BIOS CHIP - MSI B450 TOMAHAWK / GAMING PLUS / PRO CARBON AC / B450-A PRO MAX - is it worth trying guys ?
          thank you
          03-29-2021, 11:09 AM
        • Stanley1843
          Screen Display Vertical Multicolor Lines
          by Stanley1843
          Hello, I have a screen in where sometimes when I open it pop-up vertical multicolor lines (I would say the most of them are green). If I tun off and turn on the screen the lines dissapear or if I leave open the screen after approximately five minutes the lines gone. I measured the below voltages on the main PCB and on the T-CON board and the voltages are the same when it doesn’t display the vertical lines and when it displays the vertical lines. Also, I cleaned all the connectors very good with IPA. I moved back and forth the connectors and the COF tabs but the vertical lines didn't displayed...
          06-29-2024, 11:54 AM
        • Loading...
        • No more items.
        Working...