Hi folks, I'm looking for advice as I seem to be a LITTLE stumped with a hardware issue. Below are the computer specs:

-CPU =5820
- MotherBoard = X99 Deluxe II
- GPU = 1080 (2)
- Power supply = EVGA 1000 G+
- 128GB Ram

Problem:
Last week I went into my computer room which had a smell, I looked over and my water pump was not circulating in the res so I immediately powered the PC off. After hours of cooling down I powered the computer back on to test if windows WOULD fully boot to see if I fried the CPU or Motherboard. The computer will boot into windows.

I then ordered a new water pump and after installing I noticed that the pump would not power but also the fans would not fully power (Leds will light on the fans but they won't spin) SO currently the water pump and fans will not power while the PC, Ram, GPU's etc power and boot to windows. I took it to a shop yesterday and they said they tested the Power supply and it was not getting the right voltage. If they test the new pump or fans on their test bed they turn on fine.

So I just installed a new power supply based on their advice and the problem remains. Pump and Fans will not operate, but computer will boot. I've tried taking both GPU out of the machine and powering it on but the problem remains.

I'm looking for some advice on what to try next as I do not want to replace every part on this PC, I would rather start my new build. (Hoping to not need to spend the money right now)

Any advice on what to try next?
Is it the 12V leg that is low?

Your Video Cards have a 12V molex power and maybe one of them is partially cooked WEIGHING it down.

Try one video card or other without both installed and see if the voltage goes to full voltage as something else other than the pump is weighing down the power supply. If board has integrated video run on integrated video and see if pump works with no issues with full voltage.My first thought is m ore a question regarding whether they *should* be operating- what I MEAN is, is there perhaps some sort of fan control enabled in the BIOS? "intelligent fan control" or something like that. It might be trying to be smart and not engaging the fans (and radiator pump) based on the system load.

Beyond that, I'd start with seeing if a "minimal" approach allows the pump to operate. This would be the minimum needed to just get a POST, and see if the fan/radiator operate as you expect- just the CPU and Radiator, no expansion cards, one stick of RAM, no HDD/SSD.

If the radiator still doesn't work than I would say the problem could be with the motherboard itself. If it does, then add back components one at a time until it stops and you'll have likely found the culprit.