I know that most would advise against it because using two separate PSUs that have different Wattage/Voltage rates can fry your system, unless you only use it to power peripheral stuff like fans or water-cooling rigs. But, my question is, what if you use two of the exact same PSUs? Obviously I would leave the power to the CPU and Mobo to only one of the PSUs, but I would connect all of the hard drives and GPUs to the other. My question is whether or not this would still be safe. (I know how to jump a PSU, and it 'always being on' isn't an issue because i can just flip the I/O switch on the back to "off".
Furthermore, I'd like to know if bridging a dedicated PSU like that to your CPU/motherboard in the assembly I just described would give you more power to overclock your CPU to higher levels, or if the increase in available power supply wouldn't make a difference, and the CPU would still only be able to handle a similar load if it were being fed with one PSU. (In other words, the increased availability of power wouldn't make a difference in your overclocking because the levels you could safely overclock your CPU would be about the same as if you only had one PSU in your whole system.)
Furthermore, I'd like to know if bridging a dedicated PSU like that to your CPU/motherboard in the assembly I just described would give you more power to overclock your CPU to higher levels, or if the increase in available power supply wouldn't make a difference, and the CPU would still only be able to handle a similar load if it were being fed with one PSU. (In other words, the increased availability of power wouldn't make a difference in your overclocking because the levels you could safely overclock your CPU would be about the same as if you only had one PSU in your whole system.)