Fatal issue after re-assembling my PC
I have an Asus Desktop G11CD-K PC (the K is for Kabylake version) wich i disassembled to clean all its parts (including Graphic card fan, its Processor and cpu fan and by replacing its thermal paste, and also its front components).
I did these steps:
- I assembled it correctly, but to be honest i did not think that i used all the right screws, but i chose it by its placeholder forms and places.
- i turned-on my PC, i found that CPU fan, Graphic Fan, PSU and HDD worked well, but all other parts did not work, like back-fan, all USB peripherics, no signal to the monitor etc..
- I tried all possibilities:
- Disassembling and re-assembling again many times.
- Changing RAM to different slots testing it one by one.
- Testing with basic components.
- Removing all parts and add it one by one to see if something can make a change but still no changes.
- I took out my mobo and test it out of the case but there are nothing again.
- I tested my monitor signal sometimes with PCI GPU , and sometimes by iGPU and in the two cases there is no changes.
- I pulled out my back-fan (which was not working on the mobo) and i tested it out of the mobo with a 9Volts battery, it worked well.
- I checked all my ATX-24 pins PSU voltages with multimeter and with a PSU tester, it gave me the right voltage values.
- I reset my CMOS too by pulling out its battery and waiting for 20 minutes, but the issue still existing.
- Finally, i plugged my usb mouse and/or my usb keyboard, it lights for milliseconds then it turns-off.
- When turning-on my PC: CPU-fan,PCI-GPU-fan and also HDD are turning all well but all other parts plugged directely on the mobo does not (like usb ports).
- I used a HDD station to check if my HDD still alive and yes it is fortunately and i was able to recover my data.
- When cleaning, I used this electronic cleaner liquid. I was not sure but i have a doubt about this step, becasue when reading its manual, it says "it is safe for electronic devices and electronic boards).
- After all precedent steps, i used also another electronic cleaner after watching this video hoping that it can help me to remove any problem, but this did never also help.
- Before cleaning, i assured that there is no component attached to the current neither to the PSU, and i harded-reset all capacitors by long-pushing power button for 30 seconds to empty all currents from there.
- The only thing i forgot here is pulling the CMOS battery from the MOBO. I hope it can not be a cause of a short of something.
- Remarks: I was obligated to use "contact cleaners liquids" because in my country there is no shop buying compressed air and i wanted to order one from France but they told me it is forbidden because it is flammable.
- I'm a developer, so I have many basic ideas and knowledge about electronics and hardware but i still beginner, so i can learn and understand anyway..
What i expect to know here:
- What can be the cause of this issue ? is it the cleaner itself or cleaning when the battery is plugged into the mobo? or it could be another thing ?
- If it is the cleaner: is my mobo is damaged now or not? and this can damage other parts like cpu or they are safe so i can use it on another mobo?
- Can i repaire it? or i should just replace it or the damaged parts?
- Can i use my multimeter to check the mobo and/or the CPU at least?
- Have you any other troubleshooting suggestions ?
My first goal in this forum is to learn more than repairing,
so i hope you can help me by answering all my questions.
Hello everybody again,
I’m really sorry for my late answer, because i was waiting for some bought components (my new case , new MSI motherboard and different tools for PC Building).
I’m really happy to say that i finally solved my problem by re-building all my pc using the old parts (except the prebuilt case and the old ASUS mobo),
now my PC works well with my new build, so that i confirm that the problem was only because of the fried mobo.
Fortunately, none of my other components was damaged :D , so I used it in my new case :))
This is my first PC diagnostic & building experience, so i’m really happy to learn something new and I thank you all because i learnt a lot from all of you :)
here is pictures of my new build:
Is dit een goede vraag?