Hey guys I am posting on here for a buddy of mine whos PC has had some of the weirdest issues I have ever encountered in the 30+ systems ive built. Im in a different state so I cant be there in person to help him so we face time and I walk him through step by step what to do. So he started getting a Critical_Process_Died randomly in demanding games and we spent 6+ hours troubleshooting and to no eval the problem got worse to where it would crash if he would watch videos. We narrowed it down to a potential power supply issue and he ordered a Corsair RM750x. A friend of ours went over to install it since he isn't the most tech savvy and when he swapped over the new power supply the PC would boot for half a second, fans would spin and then there would be a click and it would turn off. He then put all the old psu cable and psu back and now the pc does the same exact thing where it would turn on for 1/2 a second with fans spinning and "click" and it will die. I spent 4 hours today walking my friend through troubleshooting.
Tried
1. Old power supply with old cables. didnt boot
2. New power supply with new cables. didnt boot.
3. CMOS battery change. Didnt boot.
4. Bare minimum boot attempt with cpu, cooler and m.2 no gpu. Didnt boot.
5. reseated gpu. didnt boot
6. reseated RAM. didnt boot.
7. 1 stick of ram. didnt boot.
8. 0 ram. didnt boot.
9. re-seated all connections. Didnt boot
10. Power supply tested the new psu and only the +5vsb light came on
11. did the paper clip test on the new psu and it spun up just fine.
12. Tried combinations of new and old cables on both PSU. Didnt boot.
Tomorrow he will be dissembling the entire PC and building it back from scratch to find the issue. If you guys have any ideas it would be greatly appreciated.
Full Build:
CPU: i7-8700k (not overclocked)
MOBO: Asus Prime Z370-A
Ram: G.Skill Ripjaws V series 32GB, 3200. F4-3200C16D-32GVK
GPU: MSI RTX 2070 Super Gaming X
Cooler: cooler master masterliquid lc240e
PSU: (old) Rosewill 750w Quark series 80 plus platinum. (New) Corsair RM750x.
m.2: samsung m.2 dont know what kind
HDD: 2tb WD black
Tried
1. Old power supply with old cables. didnt boot
2. New power supply with new cables. didnt boot.
3. CMOS battery change. Didnt boot.
4. Bare minimum boot attempt with cpu, cooler and m.2 no gpu. Didnt boot.
5. reseated gpu. didnt boot
6. reseated RAM. didnt boot.
7. 1 stick of ram. didnt boot.
8. 0 ram. didnt boot.
9. re-seated all connections. Didnt boot
10. Power supply tested the new psu and only the +5vsb light came on
11. did the paper clip test on the new psu and it spun up just fine.
12. Tried combinations of new and old cables on both PSU. Didnt boot.
Tomorrow he will be dissembling the entire PC and building it back from scratch to find the issue. If you guys have any ideas it would be greatly appreciated.
Full Build:
CPU: i7-8700k (not overclocked)
MOBO: Asus Prime Z370-A
Ram: G.Skill Ripjaws V series 32GB, 3200. F4-3200C16D-32GVK
GPU: MSI RTX 2070 Super Gaming X
Cooler: cooler master masterliquid lc240e
PSU: (old) Rosewill 750w Quark series 80 plus platinum. (New) Corsair RM750x.
m.2: samsung m.2 dont know what kind
HDD: 2tb WD black