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ASUS G53SX Doesn't boot, fans too fast, help please!

The problem is that it doesnt boot, to describe my problem I will explain the behavior Im having.

When I press the power button the symptoms are the following: the battery and charging leds, as well as all the leds above the keyboard turn on and stay like that, the hard drive led blinks 2-3 times for 2-3 seconds and then turn off, but the hard disk stays working (I have tested it in another laptop and it works fine, so this is not the problem), also, since I pressed the power button the fans start working low and increase their speed until they are too fast and make a lot of noise, then the laptop suddenly turns of, no sounds, no screen, nothing more, if I try inmediatly to turn it on again, then it turns off almost inmeadiatly and now the fans start spinning fast since the first moment.

I had the no video issue before, but I was able to turn it on with some tricks, like completely dischargind the power pressing power button 30 seconds and then pressing it again to turn it on, pressing and some point in the keyboard, so something could make contact inside the laptop, trying several times, or let some time happens. However since I realize this issue was present when I moved the laptop like in my backpack to school, I decided to use it as a desktop, but after a while working well I gave it a chance, but the problem came again, now with no luck to turn it on again, so I diassembled and assembled it again (just that), but this didn't work, so i decided to open it again and remove the dust and repaste the GPU, applying thermal paste on the circuits that had thermal pads, because I didnt know what they were until I made some research, but then, after assembly it again, the issue I described first became present.

I dont know what to do, I have some options but I dont want to take them without some opinions from you guys, the first one would be to reapply the thermal paste to the GPU, and now to the CPU too, and to put new thermals pads where they originally where, the other one is to take it to a professional center, but it would be expensive and I dont have a lot of budget for this.

What do you think is happening? Do you think is a heat issue and my first solution is going to work? What else could I try? Do you think maybe it was a static discharge when handling components that caused some damage to them? Im out of ideas, and hope you could give me some light!

Sorry, but Asus has dissapointed me with this laptop since the begining, bad USB 3.0 port, speakers problem and power jack center pin broken.
9 answers Last reply Best Answer
More about asus g53sx boot fans fast
  1. if you can connect to other monitor that may help.do you have skills repair computers.if you not don't touch them.so you tested hard drive in another laptop how so!!!(whats the brand and model of another laptop).
  2. Sounds like you need a new motherboard.
  3. Thank you for taking time to read guys!

    I have already tested to power on with an external monitor and I get the same behavior and no signal neither, the other laptop where I tested the hard drive was an asus too and I think I have some skills but nothing like the professionals of course, so do you think is the MB and is no worth it to expend money for quality thermal pads and thermal paste? I was thinking to buy Fujipoly Extreme 1mm and IC Diamond 7 as my last attempt to fix it by my own before trying a professional method like repairing the MB with some tech service .
  4. There is no good way to repair the motherboard, you need to replace it 99% of the time unless they look at it and go "oh look, this cable is loose".


    For that laptop it may be worth replacing the motherboard, but first find out the cost.

    Playing around with new heatsinks and such won't help you, if it was overheating you'd at least have it turn on for a bit before it shut down.
  5. I found an ebay seller that sells MB professional repair and says you only pay if it is fixed ($139 bucks) and a new MB is $195-200 bucks but I want to be sure this is the problem.

    By turn on a bit you are saying to see something like HD working, bios display, maybe windows loading?
  6. ektorzoza said:
    then pressing it again to turn it on, pressing and some point in the keyboard, so something could make contact inside the laptop, trying several times, or let some time happens. assembly it again, the issue I described first became present.
    the first red sign was already something broken inside.thats the way you gonna get skills of computer repair man go ahead :)
  7. ektorzoza said:
    I found an ebay seller that sells MB professional repair and says you only pay if it is fixed ($139 bucks) and a new MB is $195-200 bucks but I want to be sure this is the problem.

    By turn on a bit you are saying to see something like HD working, bios display, maybe windows loading?


    Without component damage, a laptop that had issues with heat would turn on to Windows, maybe even run for a while till you start a game or do some multi-tasking. Once you get to the point where it simply shuts down a few seconds after being on or just does not turn on, that is hardware failure in almost every case. Sometimes bad battery or a bad power circuit can cause this but you already said the laptop was acting up for a while. Sounds like it just fully failed on you this time.
  8. hang-the-9:
    OMG, so shame on me :/? I was wondering if based on your opinion would be worth to give a chance with the ebay guys I commented? Or should I cross my fingers and buy a new MB, wishing this is the problem?

    kapitalistas:
    Thank you for trying to cheer me xD, but I guess the more I could try, is to repaste and put new thermals pads, since I dont have any more tools like to try to check the MB components or circuitry.
  9. Best answer
    ektorzoza said:
    hang-the-9:
    OMG, so shame on me :/? I was wondering if based on your opinion would be worth to give a chance with the ebay guys I commented? Or should I cross my fingers and buy a new MB, wishing this is the problem?

    kapitalistas:
    Thank you for trying to cheer me xD, but I guess the more I could try, is to repaste and put new thermals pads, since I dont have any more tools like to try to check the MB components or circuitry.


    It is almost certainly the motherboard. If you want to replace it or have them do it is up to you. If you know how to swap out the motherboard, you can probably get it cheaper and no labor fee. The issue with that if you mess something up, it may not work even if you replace it or you could break something else. Usually this happens to cheaper or older laptops in which case the fix is often to just replace the whole laptop ether with a full working used one of the same model or a new one and move the files over. Since your laptop is newer and higher end, getting a working one may be double the cost of just the motherboard fix.
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