Craptastic

Regarding Corsair's website it should have at least one molex connector: https://www.corsair.com/us/en/Categories/Products/Power-Supply-Units/cx-series-config/p/CP-9020120-NA Its not written on the website but you can spot it on the pictures: https://www.corsair.com/medias/sys_master/images/images/hdd/hd5/9112368676894/-CP-9020120-NA-Gallery-CX450-07.png (or see picture below) Cheers

Alright but I might reply the next day. Hopfully someone else can help in case it's urgent

Nice! What have you done? Or is it just booted up after a couple of secounds? I once had similar issues with memory overclocking in Ryzen 1st gen. It just gave me a black screen and the fans spin. After a couple of automatic reboots it went into a save mode as yours and let me configure in the bios. You situation seems to be different though. Check the Bios for strange settings and if your in doubt thry to loaf the factory defaults. Depends on how you customized your settings/oc

Have you tried to clear the cmos/uefi? Edit: Check your mainboard manual on how to do that properly. Usualy you short some pins for a couple of seconds

Okay Do you have an onboard or integrated video card? In that case try to disconnect your card from the mainboard and boot via the internal graphics

Okay before doing that you should have tried following: Unplug your whole system (the whole setup, pc, monitor, etc.) for several minutes and try to boot back up. Give it some time to boot. Several minutes. Listen for beeps and look for error codes in case you have a beeper and ore boot code display on your mainboard/motherboard. Is there any? If not try to disconnect exterior devices or connect them to different ports. Try a different port on your video card. If nothing helbs then you might give your system memory a lottle gentle wiggel or recede it to make sure it has a poper connection. Try the graphics card after that if still no success. Ceck if all power cables are connectet properly or if one came loose. If all that doesnt halp the try to test components on a diferent system as written above (if possible)

Are you able to swab out your graphics card or other components and thest those in a different system? I would try to recede components first. One my one not all at the same time. Graphics card and memory in the first place. In case you already did that then try to swap them out or test them on a diferent system if you can. Also: Is there any indicator on the mainboard? e.g. Post code display or a tiny speaker/beeper?

You never got your system booting up again? Even after a couple of minutes without power and giving the system some time to boot. Is that correct?

Have you tried a different monitor. Or just a different port on the graphics card? I had cards with dead outputs in the past while other connectors on the same card worked just fine

You're welcome btw. I just noticed hat you might have to fill out the whole specs but select later on what to whatercool and what not. They recommend an 240 radiator for my R5 1600 which is suprisingly big. Take the rusult with a grain of salt.

The power supply you send usualy comes with 4 PCIe connectors 6+2. Mayby your brother hast the other spare cables still stored somewhere? I dongled wired stuff together in the past, even soldered my own power adapters if I had to. If you're just adapting molex to 6-pin PCIe then you should be fine. Use a proper adapter though and ask for the spare cables first.

Thats's true. Your CPU is also rated with 25W more TDP (I know TDP numbers are kinda sketchy). Ryzen 3000 should be more efficient than the 1st gen and in my case I'm using the aio with an airflow instead of an airpreasure fan. You could try to enter your config into the ekwb configurator for example and see what they recommend (just into the motherboard section): https://www.ekwb.com/custom-loop-configurator/ In general you should be fine I'd say. If you're still not sure check if your case can fit an 140mm aio and what the exactly cost difference is.

I'm using an 120mm aio for my R5 1600 just fine. It runs ~60°C when maxed out with a slight overclock to 3.8GHz. Just for refferenze. I hope it helps.