U7000 Questions

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • dkg
    New Member
    • Jul 2020
    • 3
    • US

    #1

    U7000 Questions

    Knowledge seeker here with a couple questions. Looks like my 820-2915-B motherboard's u7000 chip needs replaced on my Late 2011 Macbook Pro 15". (Green light and my battery does not charge).

    My chip lists three rows of info. I've found sources online matching the first two rows.
    i625
    9AHRTZ
    F130TK

    1. What does the indo on the third row represent? Must it be identical?
    2. Can I use a U7000 I find online or must I find a donor board?
    3. Does Apple use the identical U7000 on many different Macbook Pros? My guess is Apple would since it seems to be a "standard" part.
    4. If I need a donor board, how can I discover which boards match the chip I need? i.e. year & model / motherboard #(820-xxx-x)

    Thanks in advance.
  • diif
    Badcaps Legend
    • Feb 2014
    • 6978
    • England

    #2
    Re: U7000 Questions

    The third row is manafactiring info, date, factory, batch no. Etc. Its unimportant.
    You can fit new or from a donor board, the third line does not need to match.

    Comment

    Related Topics

    Collapse

    • Sergio Kub
      820-3115B U7000 warming
      by Sergio Kub
      Hi there,
      I have a Mac on the bench that wouldn't turn on, it didn't have PPBUS_G3H voltage.
      I replaced the IC U7000, ISL6259 and the green light came on, the cooler turned on and showed the video, but I noticed that PPBUS_G3H is at 9.45V and the U7000 is heating up a lot.
      I took resistance measurements for the earth and did not find a short circuit.
      I measured the resistors connected to the U7000 and found no different value.
      I searched the Forum and didn't find anything like this.
      Can anyone give me any advice about this problem?
      Thanks in advance.​
      05-03-2024, 02:00 PM
    • duwane
      A2251 (820-01949 board) PMU IC U7800 CALPE-PMU
      by duwane
      Hi All.

      I have an A2251 820-01949 board that has come to me for data recovery. Previous repair shop that worked on the board have removed the PMU as they said that the chip had a hole burned into it. I have replaced a bad cap that was causing a short on PP3V3_G3H_PMU_VDDMAIN to ground that I am 99% sure is what caused the PMU to blow. Now I am trying to find a replacement PMU chip U7800 (labled as "CALPE-PMU" in the schematic).

      I have several questions about the PMU chip itself:

      1) Does anyone know if these chips are identical between boards...
      03-04-2023, 07:23 PM
    • AlbertaComputers
      Acer Nitro 5 gh51g la-l181p Rev:1B Boardview & Schematic.
      by AlbertaComputers
      There were no short circuit detected on the 19V, main power rail of the motherboard. However, when the adaptor was plugged in and the voltage reading taken, it was identified that the voltage wasn't going beyond the first power mosfet and unto the rest of the motherboard.

      An identical mosfet was found and removed from an acer nitro 5 donor board, the faulty mosfet was swapped out and the voltage reading was again measured. This time, voltage was passing through the replacement mosfet, but the unit still wouldn't turn on or charge. It was then observed that an IC was overheating on...
      01-19-2024, 12:39 AM
    • lucaszmn
      Summary of BIOS Whitelist Removal Problem Lenovo Thinkpad T560
      by lucaszmn


      Summary of BIOS Whitelist Removal Problem


      Problem:
      I am attempting to remove the WWAN card whitelist from my Lenovo ThinkPad T560.
      Initial Findings:
      • My current BIOS version is N1KET58W (1.45).
      • I have a CH341A programmer and have successfully created two full backups of my BIOS.
      • I have the ability to use command-line tools on a Linux machine.
      Troubleshooting Steps & Conclusions:
      • I attempted to use several automated and manual patching methods on my N1KET58W (1.45) BIOS, including using hex strings. These attempts all failed.
      • I concluded that the
      ...
      08-12-2025, 03:01 PM
    • studdy05
      Bricked HP Probook 450 G7 Bios questions
      by studdy05
      Hp Probook 450 G7 s# SCD0348W35 had a locked BIOS. Bought BIOS and EC chips off Ebay that were supposed to match this machine - the 450 G7. Flashed in the BIOS on chip i bought using a CH341. BIOS unlocked next boot. Some error to contact HP. Entered BIOS and reset to system defaults and rebooted. Machine worked fine but every cold boot the contact HP message popped and everything else worked as fine. Assumed the error was from EC chip not matching BIOS that i just flashed in. So i flashed in the EC that was supposed to match from the EBay chip i bought and instant brick.

      Ive got...
      07-08-2025, 09:24 PM
    • Loading...
    • No more items.
    Working...