About the project
Diagnostics
Upon inspection, a significant amount of dust was found on the components - typical for open stands without regular maintenance.
The main complaint is the lack of images. Diagnostics showed: the system starts with only one stick of RAM. When installing the second bracket and switching to dual-channel mode, the motherboard generated an initialization error.
Reason and solution
When tested, the memory modules turned out to be in good condition. The problem was looked for elsewhere.
The reason turned out to be oxidation of the contact pads on the Intel Core i9-9900KS processor, due to which the second memory channel did not work.
“If the memory is physically good and the system does not start in dual-channel mode, the reason is often the memory controller on the processor. We removed the Noctua cooler and removed the processor for inspection."
Completed work
- Complete cleaning of the housing and components from dust.
- Treating oxidized processor contacts with an alcohol solution.
- Replacing thermal paste under the Noctua cooler during reassembly.
Result
After repair, the system starts in dual-channel mode without errors, stress tests are passed. The repair was limited to diagnostics and restoration of the processor contacts - replacement of components was not required.
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