Now we're trying to update the CPU, which has required us to get a new motherboard as well, because the old CPU socket was AM3, and the CPU is AM3+ (The CPU is AMD FX 8350). The motherboard is M5A78L-M/USB3.
Originally, when turned on, the fans would run for a bit, then turn off. We never got to the BIOS.
We found out that if we flip the case switch on, then touch the power switch cable to the pin it's meant to go in, then remove it, the computer boots correctly, gets to the BIOS, and stays on.
If we plug in the power switch cable while it's on, it turns off.
We also found that if we turn it on normally (with the power switch cable staying in) without the CPU plugged into the motherboard, the fans turn on and stay on, but we don't get to the BIOS. Any suggestions?
Edited by Raspite, 18 August 2016 - 07:44 PM.
Moved from System Building to Internal Hardware - Hamluis.