Diagnostics and repair of video cards from different manufacturers. Replacing the memory with the IK-650
Visual inspection of the video card is the first and very important step before starting the repair. The success of the repair itself largely depends on the correctness of the initial diagnosis. The following programs are used to test video cards: FurMark, AIDA64, 3DMark.
Visual inspection and initial diagnostics
While studying the circuitry, you will learn the name and purpose and location of smd components and bga chips on the video card. Learn to test a BIOS chip with an oscilloscope. You can independently perform the selection of interchangeable radio components. And also learn to read schematic diagrams and datasheets.
How to create a bootable USB flash drive and test the video memory with MATS. This is important for checking the health of the microcircuit and analyzing the architecture of the video card.
Working with a multimeter: continuity of the power supply circuit, main power 12v signal 5v and 3.3v, measuring the resistance of chokes and resistors, searching for broken elements.
Video card repair
Replacing memory banks on a video card using a hair dryer and bottom heating. Reballing bga video memory chips. Search for compatible memory chips, selection of analogs from “donor” boards; by frequency and timings.
Replacing memory using bottom heater
How to prepare a video card for soldering and subsequent replacement of a video chip with an IK-650 according to the thermal profile. Preparing a pad for installing a new GPU.
Replacing the GPU
It is necessary to clean the cooling system of the video card periodically. Replacement of thermal paste and thermal rubber bands. Selection of a custom graphics card cooling system. GPU scalping and crystal thermal paste replacement.
Cleaning the cooling system
Laptop diagnostics, multimeter measurements, oscilloscope – troubleshooting, laptop soldering
Board diagnostics, circuit reading, soldering of bga chips, cleaning of the compound, restoration of nickels and tracks