One way to determine if your power IC is damaged is to look for signs of physical damage, such as discoloration, blistering, and burning. If the power IC appears visually damaged, you may want to try testing it with a multimeter to see if the current, voltage, or resistance readings are abnormal. If the readings are inconsistent or don’t match expected values, then the power IC may be damaged. In some cases, the power IC may even be audibly damaged; you may hear clicking, ticking, or other strange sounds if the power IC has failed. Finally, you may be able to use a signal tester to measure any output from the power IC. If you don’t see any signals coming from the power IC, then it’s likely damaged.