Features 1、100% Brand new and high quality. 2、Designed for quick test of signals and voltage in the main board. 3、Used to test open circuit or short circuit of BGA and CPU. 4、Replace traditional multimeter with indicator, the result is more intuitive. 5、Compatible for all 1151 main board. Specification Description: Features: 1. 100% Brand new and high quality. 3. Used to test open circuit or short circuit of BGA and CPU. 4. Replace traditional multimeter with indicator, the result is more intuitive. 5. Compatible for all 1151 main board. Specifications: Material: PCB Color: Black Compatibility: for all 1151 main board. Size: 38 * 38 * 3mm / 1.5 * 1.5 * 0.1inch Weight: Approx. 26g Instructions: 1. Put 1151 test indicator in 1151 CPU slot and press down the CPU cover plate (note that this time it can't electricity), with 2023 3V battery against the test lamp row needles, all DMI signal lamp will light up. If the light is off, says there are a short circuit. You can shake CPU compression bar, using a multimeter to make a further determination. 2. When the above steps are tested normally, install the CPU load in the pass sample step, and use oscilloscope to test whether various voltages, clocks and other signals are normal or not. Package Include: 1 x Test Card with Indicator 1 x Test Card without Indicator Notes: 1. When using the 1151 test card, when the battery is against the drain pin, the indicator is off, it may be that the positive and negative terminals are connected backwards, please replace the positive and negative terminals of the battery.