Odd Power Cycling Issue

Caerid · February 11, 2023

So, I built a new computer during the beginning of the pandemic, only missing the graphics card. I was still using my old GTX1080 Xtreme that ran perfectly fine. I finally decided to upgrade to an RTX4080 and bought the water cooled Gigabyte Auros RTX4080 Xtreme. It meant I ended up having to disassemble a good portion of my machine to install a second 360mm radiator, (I already had one for my CPU,) so I moved them around because of the aesthetics. It was a huge hassle and not worth it at all, having to reverse the fans on the GPU radiator, but I did get it done and eventually had everything rebuilt.

Here is where the strange part kicked in, that I have personally never seen before and I can't seem to find anything on anyone else reporting this issue. I plugged in the power cord and flipped the PSU switch to turn power on. Without doing anything else, the computer then tried to start up, but only kicked on 3 of the 9 fans, the Lian Li LED cables I have connected to the motherboard and the GPU turned on, I got a code of 00 on my Gigabyte Auros Master motherboard, and then it powered off...and then tried doing it again...and again. That in and of itself, power cycling, is an issue I know about from the Auros Master brand, as I have read many comments on it. The difference is that that usually happens when people try to power on the computer...not when it is powered off. And here is the final kicker, when I actually press the power button, as it is continually power cycling, it boots up perfectly fine just like normal and there are 0 issues as of yet as it is running. This is what confuses me. Usually power cycling happens when you are trying to boot and it won't let you...not when it is in a powered off state and then boots fine. I checked and I have always had things like Sleep and Hibernate turned off in Windows 10. I can't remember if it did it the first time I flipped the power switch on to boot up and install the latest Nvidia drivers, but I know that was the last thing I did before it started doing this.

If anyone has any idea what is going on, I would be grateful for some insight. I leave my computer on virtually 24/7 anyways, so it shouldn't be the worst problem in the world for me as long as there aren't other issues that haven't appeared yet, but I'm just worried that if I'm not around and the power goes out, then comes back on, it could spend an amount of time power cycling and possibly damage components.

Thanks.

johnno23 · February 11, 2023

only time i had the power cycling on my X570 Aorus master was with fans. i have 9 x Bequiet Silent wings 3 in my rig and i had to move one fan connector to fix the issue.

not sure if i was pulling too much amperage but it might have been even though it should not have been an issue. I had used a 3 way splitter from the board as it just made the cable management so much easier. I unplugged one fan from the splitter and it just stopped cycling and booted straight into windows. so i just pulled that one cable over the top of the board and plugged it into an unused fan header

Caerid · February 11, 2023

With this, it is almost like the motherboard is trying to draw power, while it is turned off, (which if I remember rightly it does even when you have shutdown, but usually only a very small amount to power usb and supply power to the power on port, etc.) However, it seems to be drawing more power than it needs, then powering down, then repeating the pattern. As I've said, I've seen the issues with motherboards power cycling AFTER you press the power button to attempt to turn it on, but never right after you flip the PSU switch on, or after the computer has gone through the shutdown routine and turned itself 'off'. Every time I've ever heard of a power cycling problem, the computer hasn't been able to boot properly while it is doing it, but even in the middle of it power cycling, when I hit the power button to actually start the system, it boots right up without a problem.