I have an Acer Predator G3-710 that was experiencing very loud fan noise all of a sudden. After I decided that it is not worth to replace the fan inside the PSU and I just bought a EVGA GQ 850W from Bestbuy and went ahead with replacing the noisy PSU (that is a $150 PSU for a $1200 preconfig drawing probably 200W max, from Costco like 4 years ago, but I needed to work and the noise was making it really hard to concentrate, so anyways).
Then there comes the problem. I have replaced the PSU and then tried to turn on the machine, which I left the cover open for observation. The machine turns on, but I see that there is a spark occurring at the connector to the motherboard for powering fans (#15 in the following image). I think I may not have connected firmly enough because it is in a very hard to reach area in terms of wiring, and I immediately shut the power down and reconnected the wiring to the connector, but the machine no longer powers on.
When I unplug the 4pin wire, the connecting part does smell off (different from a different end of the PERIF connector, maybe smells "burnt"?).
What I mean by no longer powers on, is that:
Things I have tried:
All leads to the same outcome.
Things that I am thinking of trying (but haven't got the time to do):
4. put the original PSU back in to see if it still work
What exactly went wrong? Have I fried my motherboard big time? Is there anything I can still do to savage this situation?
Then there comes the problem. I have replaced the PSU and then tried to turn on the machine, which I left the cover open for observation. The machine turns on, but I see that there is a spark occurring at the connector to the motherboard for powering fans (#15 in the following image). I think I may not have connected firmly enough because it is in a very hard to reach area in terms of wiring, and I immediately shut the power down and reconnected the wiring to the connector, but the machine no longer powers on.
When I unplug the 4pin wire, the connecting part does smell off (different from a different end of the PERIF connector, maybe smells "burnt"?).
What I mean by no longer powers on, is that:
- When I connect to power, the LAN light turns on. Since the motherboard doesn't have any other indicator light, I take this to mean that the motherboard is getting power from the 20+4.
- When I press the power button, I can immediately hear one/two faint click(s) from the PSU, but there is no fan spin from either the PSU or the CPU fan.
- The power indicator light does not turn on (even briefly) after I press the power button.
Things I have tried:
- drain the power for the motherboard
- use a different end of the PERIF connector provided by EVGA
- short the power button lines to start
All leads to the same outcome.
Things that I am thinking of trying (but haven't got the time to do):
4. put the original PSU back in to see if it still work
What exactly went wrong? Have I fried my motherboard big time? Is there anything I can still do to savage this situation?