Malicious activities and alterations in integrated circuits have raised serious concerns to government agencies and semiconductor industry. The added functionality, known as a hardware "Trojan", poses great detection and isolation challenges. The research is conducted in hope that a Trojan can be detected by incremental, exhaustive testing. The programmed code will be placed on the FPGA board CLB by CLB. Testing will be conducted on the latest placed CLB and each neighbors to detect if there is any additional function than expected. Trojans should are detected after revealing the additional functionality. The research will determine the efficiency of this proposed methodology in detecting Trojans without having to physically-examine and deconstruct the real hardware board apart.