Fix Gigabyte H61 mainboard losing vcore due to IO error

Presently, the mainboard traces of socket 1155, 1156 have expired guarantee and are having many errors. However fixing these H61 mainboards is more and more tough, however there are various illnesses which might be additionally very simple. Please share with you easy methods to repair Gigabyte H61 mainboard dropping vcore on account of IO error.

+ Situations to have CPU energy

To have a Vcore supply, the  VCCSA supply have to be good to command  VTT_PWRGD allow for the Vcore IC to work. Then the ATX supply will report good energy on pin 50 of the IT8728F IO chip (this IO chip is used on the Gigabyte H61 mainboard).
After receiving an excellent supply message, at pin 63 of IO , it can challenge a PWROK command for the H61 chipset.
The H61 chipset continues reporting the DRAMPWROK instruction to the socket 1155 CPU.
The H61 chipset continues to ship the  CPUPWROK command to the LGA 1155.
Then  Vcore IC can output Vcore supply CPU provide

Sửa mainboard Gigabyte H61 mất vcore do lỗi IO
IT8728F IO Diagram

When one of many above directions is lacking, the facility Vcore for the CPU will likely be misplaced. Often on the mainboard Gigabyte H61 loses Vcore more often than not as a result of IO chip error. IO chip error on account of lack of sign PWROK from pin 63 of IO output. We simply want to exchange the IO, however one of these IO is at the moment only a few and solely taken from the principle physique. If you do not have IO, do not surrender the principle, please information me easy methods to do this can be very easy.

That’s we faux the command, the command from pin 63 generated from 3v3 by way of the resistor after which reported to IO. IO itself doesn’t spawn this 3v3 instruction. So in an effort to have a high-level voltage for the H61 chipset, we simply must channel pin 63 of IO up, or discharge the 3v3 RN51 resistor for pin 63 of IO. So there will likely be a Vcore supply for the CPU.

 kênh chân 63 của IO lên là được
Pitch the IO pin 63 to simulate the PWROK instruction

That is easy methods to repair Gigabyte H61 mainboard dropping Vcore on account of IO chip error. I had numerous issues prior to now, by way of analysis within the masters and likewise efficiently mounted for a lot of mains. Hope will probably be useful for you.

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7 thoughts on “Fix Gigabyte H61 mainboard losing vcore due to IO error

      1. cho e hỏi main biostar G41 và main ASUS G31 đều bị 1 bệnh kích cúp liên tục, hướng xử lý như thế nào ạ, e cảm ơn

  1. em mới vào nghề, cho em hỏi về main intel DH61HO máy chạy(các máy khác vẩn thấy qua mạng và truy xuất dử liệu bình thường) nhưng không lên hình. Đo áp xuất H-sync và V-sync không có vol. Xn cảm ơn

  2. cho mình hỏi làm sao tải phần mềm eM-Test Expert trên trang của tecnomatix unicam như thế nào, có thể crack được k, mình cảm ơn nhiều

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