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My laptop is model is HP Pavilion 15 ( au172tx ) and not turning on. It shows 5 long and 3 short caps lock blink error. Please help me if anyone know a solution for this issue. Thank you. Does anyone have faced this kind of issue ?
Hi @anjuwa A 5:3 codes is a systemboard problem. This is what HP says: The red light blinks five times, and then three, short white light blinks This condition indicates the embedded controller cannot reach the BIOS within the established time limit. Remove all accessory devices from the notebook and try to start it. Contact HP service. Try a power refresh to hopefully get it working again. i). Switch off the laptop and disconnect the charger from the laptop if connected. ii). Disassemble the laptop and disconnect the battery from the systemboard. You don’t have to remove the battery, simply disconnect it. iii) Remove the RTC coin cell battery from the systemboard. Remember its orientation for when you reinsert it later. Usually it is +ve on top as marked on the battery Here’s the maintenance and service guide for the laptop, taken from this webpage. This details the necessary pre-requisite steps to access and remove the components. The RTC battery is not mentioned but when you have the laptop open and can access the systemboard, you will see it. iv). Press and hold the laptop’s Power on button for a full 30 seconds and then release it. This will restore the BIOS to its default settings, in case a corrupted BIOS was the cause of the problem. v). Reinsert the RTC coin cell battery, (remember orientation), reconnect the main battery, re-assemble the laptop, connect the charger and turn on the laptop and check. If it starts OK there may be a message about the date and time being incorrect. This is normal as the BIOS has been reset. Once the D&T have been adjusted, the message won’t appear the next time the laptop is started. If the error code is still there, then commiserations, as there is a problem on the systemboard. You may either have to find the schematics for the systemboard and try to work out what’s wrong or contact a reputable, professional laptop repair service.
Step 1: Disconnect and reset your memory module First, remove the protective casing that protects your memory module located on the backside.Now, take out the memory sticks and put them back.Try switching on the system. If it works properly, then you have solved your problem. Step 2: Perform a Windows Memory Diagnostics Test While the problem may appear to be resolved by resetting the memory sticks, it’s worth running a diagnostic test to determine if your RAM is defective. Click the Start button, and then type Windows Memory Diagnostic.Click on it. The new option box will now open. Click on “Restart now to check for problems"Windows will restart, and run the test to determine if there is a problem with your RAM. It will then automatically restart the system after the test is complete.Once it has restarted, wait for the message box to display the result.Your memory sticks will be fine if there are no errors.If it turns out that one of your memory sticks is defective, you can replace it. Answer Source - hp caps lock blinking codes
