I'm going to try and make this long story as short as possible. Initial problem was that my PC froze and I could not restart, either from the keyboard or the power switch on the case.
I powered down the PC by flipping the I/O switch on the back of the PSU. However when I flipped the PSU back on, all I got was the MB lights turning on and the fans spinning for a second or two before powering back down and then repeating.
Hoping it was the PSU and not the MB, I got a new Thermaltake Toughpower GF1 650W PSU. But like an idiot I used the same modular cables from my Corsair RM650x PSU. When I flipped the I/O switch on the new PSU nothing happened.
Realizing that using the old modular cables was a mistake, I next connected the Thermaltake PSU with the correct cables. But when I then flipped the I/O switch on the new PSU, the computer turned on without having to even press the power switch on the case! And it didn't really turn on; only the MB "Phase LED" lights, CPU fan, and fan at the back of the case turned on. There was no beep, no POST, nothing. I am getting the same result even with the power switch cable unplugged from the header on the MB! So all of this happens just by flipping the I/O switch on the PSU.
I have since cleared the CMOS by shorting the pins and have also replaced the CMOS battery. I have also removed all of the components except for the CPU, CPU fan, and a single stick of RAM. The Power/Reset/Speaker/HD LED's also remain plugged in to the MB header. The only cables from the PSU currently connected are the CPU and 24pin MB cables. Now when I flip the I/O switch to the on position, the CPU fan turns on and the MB "Phase LED" lights turn on, but no beep on POST. Again all of this without having to press the case power button.
What are the next steps that I can take to find out what components I have fired and which are salvageable? Luckily I am able to mount my HD's via a USB enclosure, so my data is safe. The CD rom drive was also operational when the computer turned on, or at least the open/close tray button worked, so I'm guessing that the Sata modular cable was interchangeable. Finally the fan at the back of the case did turn on, and that fan was attached to the Molex modular cable, so it looks like that cable was interchangeable as well.
My system is as follows:
MB - GA-P55M-UD2
CPU - Core i7-860
RAM - 2 x 8GB DDR3 - 1600
GPU - Sapphire PULSE Radeon RX 570 4GB GDDR5
PSU - Thermaltake Toughpower GF1 650W (was a Corsair RM650x)
I realize that this is an old system, but I have been successfully able to dual boot into Windows and macOS for over 10 years and I would prefer to salvage whatever I can of the MB/CPU/RAM. Any information would be greatly appreciated.
Thanks,
Bruno
I powered down the PC by flipping the I/O switch on the back of the PSU. However when I flipped the PSU back on, all I got was the MB lights turning on and the fans spinning for a second or two before powering back down and then repeating.
Hoping it was the PSU and not the MB, I got a new Thermaltake Toughpower GF1 650W PSU. But like an idiot I used the same modular cables from my Corsair RM650x PSU. When I flipped the I/O switch on the new PSU nothing happened.
Realizing that using the old modular cables was a mistake, I next connected the Thermaltake PSU with the correct cables. But when I then flipped the I/O switch on the new PSU, the computer turned on without having to even press the power switch on the case! And it didn't really turn on; only the MB "Phase LED" lights, CPU fan, and fan at the back of the case turned on. There was no beep, no POST, nothing. I am getting the same result even with the power switch cable unplugged from the header on the MB! So all of this happens just by flipping the I/O switch on the PSU.
I have since cleared the CMOS by shorting the pins and have also replaced the CMOS battery. I have also removed all of the components except for the CPU, CPU fan, and a single stick of RAM. The Power/Reset/Speaker/HD LED's also remain plugged in to the MB header. The only cables from the PSU currently connected are the CPU and 24pin MB cables. Now when I flip the I/O switch to the on position, the CPU fan turns on and the MB "Phase LED" lights turn on, but no beep on POST. Again all of this without having to press the case power button.
What are the next steps that I can take to find out what components I have fired and which are salvageable? Luckily I am able to mount my HD's via a USB enclosure, so my data is safe. The CD rom drive was also operational when the computer turned on, or at least the open/close tray button worked, so I'm guessing that the Sata modular cable was interchangeable. Finally the fan at the back of the case did turn on, and that fan was attached to the Molex modular cable, so it looks like that cable was interchangeable as well.
My system is as follows:
MB - GA-P55M-UD2
CPU - Core i7-860
RAM - 2 x 8GB DDR3 - 1600
GPU - Sapphire PULSE Radeon RX 570 4GB GDDR5
PSU - Thermaltake Toughpower GF1 650W (was a Corsair RM650x)
I realize that this is an old system, but I have been successfully able to dual boot into Windows and macOS for over 10 years and I would prefer to salvage whatever I can of the MB/CPU/RAM. Any information would be greatly appreciated.
Thanks,
Bruno