Computer fails to power on because the illuminated keyboard is switched off.
Computer fails to power on because the illuminated keyboard is switched off.
Initially, I had the ASUS ROG GT51CA pre-built with 64GBx4 16GB DIMMS, an i7-6700K CPU, two SLI RTX 2080Ti graphics cards (though the new RTX 4060 Ti didn't power on), a PSU ESGaming RGB750W, and I was running resource-heavy applications. After about six minutes of use, the system would crash and restart. Stress tests confirmed the CPU, GPUs, and RAM were functioning, but the PSU failed—LEDs were off, fans stopped spinning.
I upgraded to a 750W modular PSU instead of the previous 600W model. The PC started booting normally with all indicators active, except for the monitor displaying "No Signal." I took it to a repair shop, where they diagnosed a motherboard and graphics card failure due to what they claimed was liquid damage. I was surprised because I’d never had any liquid contact with my PC before. All other components seemed intact prior to the failure, except the PSU, which I had recently replaced.
I then purchased the same motherboard model and swapped in an RTX 4060 Ti graphics card. Despite this change, the system still wouldn’t power on—either processor. I’ve been very meticulous with component installation and always used a grounding wire to avoid static damage. I also double-checked the RAM connections and everything else.
I’m at a loss and seeking advice from others. Any suggestions would be greatly appreciated.
Yeah, I think you're right, Lutfij, in regards to the new PSU I bought. It passes the 'paper clip' test; it is still working OK, but the original one that came with the pre-built rig was indeed a Corsair. Shoulda read more reviews.
Anyway, no - it doesn't turn on iGPU. (Um, to run a PC in iGPU you just need to take out the graphics card and unplug it's power cable, right?)
Again, the PC would turn on with new PSU, but with no signal to the monitor. (Yes, I rechecked the connections, then tested the PC with a different monitor which I knew was working, and tested my current monitor on another PC and it worked fine)
It was when I put in the new CPU - another i7-6700k right out of the box, that the PC wouldn't even turn on. I am sure I put it in correctly. I then put the old i7-6700k back in, same bloody thing. :-(
Cheers,
Robert
Hello everyone,
I'm taking a short break from my month-long hair-pulling challenge to fix my PC. It won't turn on. But!! I noticed it was on its side and, as I reached for the PWR button, I didn't see it flashing. I saw somewhere that this could mean a faulty RAM DIMM or a dead CMOS battery.
Anyway, I'm going to get a new CR2032 battery and test the RAM if replacing the battery doesn't help.
My question is: could the flashing PWR button signal something else?
Thanks in advance,
Robert
You're not using your time wisely with paper clips, as this test doesn't reveal the actual power capacity.
You may need to check the CPU's socket for any bent or damaged pins.
Hello all,
My PC won't turn on, and I've been stuck for a month without progress. While working on it with the back facing me, I pressed the PWR button on the front, and noticed it was flashing. I checked online that this could mean a dead CMOS battery or a faulty RAM DIMM, so I replaced the old battery with a new one. The PC still doesn't power up, and the PWR button keeps flashing. I tested each DIMM separately in slots A2 and A1, but none started. Could the flashing indicate another issue? Any advice would be greatly appreciated.
Robert
Here are the details you provided:
Pre-built ASUS ROG GT51CA; 64GBx4 16GB DIMMS; i7-6700K CPU; TWO SLI RTX 2080Ti (tested with a new it RTX 4060 Ti; still won't turn on); PSU ESGaming RGB750W