Navigating the Perils of Selling Custom CPUs: A Cautionary Tale

When selling specialized computer hardware like a delidded Intel i7-7700K, the experience can sometimes lead to unexpected challenges. Recently, I found myself in just such a situation after selling my delidded CPU online. While I provided the buyer with extensive instructions—totaling nearly 1,700 words, complete with links to videos and guides—it soon became clear that our communication had some gaps.

The processor was shipped without being resealed, accompanied by the remaining Thermal Grizzly Conductonaut I had used. I made it a point to inform the buyer that he might need additional liquid metal to ensure proper coverage of the die and the custom copper IHS (integrated heat spreader) included in the package. However, despite my warnings, he pressed ahead without following my advice on thermal application and monitoring temperatures using HWiNFO64—an oversight that would soon manifest as a potential issue.

The Dilemma Unfolds

Shortly after receiving the CPU, the buyer reported an alarming situation: only two cores and four threads were showing up in his system’s Task Manager. While the BIOS reflected the processor correctly, it raised the question of whether the buyer’s actions had caused damage to the remaining cores. To troubleshoot, I guided him through msconfig settings, ensuring that the normal startup option was selected and that the ‘Number of processors’ box was unchecked.

Fortunately, after a second attempt at these adjustments, all four cores and eight threads reappeared in his system. However, I was understandably concerned about his CPU’s idle temperatures, which hinted at potential overheating issues.

I sensed that he could benefit from reapplying the liquid metal, not just on the die but also on the IHS, as I had originally instructed. However, I found myself hesitating; I worried that further attempts might exacerbate the situation, given his limited experience.

Reflecting on the Experience

This experience serves as a reminder of the responsibilities inherent in selling high-performance components. Prior to finalizing the sale, I had my reservations about whether the buyer was equipped to handle a delidded CPU. I clearly communicated the risks involved and emphasized meticulous care—yet he still opted to proceed with the purchase.

Once the issue of missing cores was resolved, I reiterated that any further concerns falling outside of my guidance were beyond my control. I had done my due diligence in selling a functional product