Sudden crashes after gpu upgrade

[ExquisiteGem]

Hi, so I just upgraded to a 4070, kept everything else the same, just adding another m.2 SSD as a boot drive and I keep getting sudden crashes while gaming. Once, right after the GPU install the whole system shut down for half a second then really quickly restarted to the lock screen and then ever since the games just stop just like when pressing alt + f4. I'm on a clean install of windows, with all updates and drivers to the latest versions. I don't see a pattern, sometimes I get crashes one after another for a while, other times I play hours without any problems. Temps are all fine and the crashes don't happen at intensive points where the system is under heavy load. The concern for me is the power supply. I run a Ryzen 7 3700x and the RTX 4070 but I only have a 550w PSU (from Corsair). My problem is : The CPU consumes around 60w under load, and the GPU around 150-160w and considering the other points of power consumption like the fans and what not I don't think I exceed my power budget. 

What can the problem be? Do I get crashes due to power spikes, is it software, or is the GPU somehow defective?

[SpookyCitrus]

Which specific PSU from Corsair is it? Where are you installing the drivers from? If you are just using the Windows updater to get everything that's a no no. 

[ExquisiteGem]

4 minutes ago, SpookyCitrus said:

Which specific PSU from Corsair is it? Where are you installing the drivers from? If you are just using the Windows updater to get everything that's a no no. 

It's a CX550M bought new 4 years ago. The drivers are installed from Nvidia Experience app, only the windows updates are from windows itself. 

[ahzaidi]

What power connector(s) does your 4070 use?

[ExquisiteGem]

Standard 8pin, it’s not power hungry. 

[SpookyCitrus]

15 hours ago, ExquisiteGem said:

It's a CX550M bought new 4 years ago. The drivers are installed from Nvidia Experience app, only the windows updates are from windows itself. 

The CX-M series from 2020-2021 especially the 550W and 650W models had issues with power delivery. If possible I'd try the system with different power supply, one with a little more headroom or at least of a better quality.

I'm fairly confident with the issues you are having and everything tried it's a power issue, next step is just testing for it.

 

If it is the PSU I wouldn't recommend anything less than 600w for a 4070 system, also make sure it's a reputable make and model, if you'd like to know good power supplies or to check if ones you have or are looking at are good, use The Cultist PSU Tier List. 

[ExquisiteGem]

10 minutes ago, SpookyCitrus said:

The CX-M series from 2020-2021 especially the 550W and 650W models had issues with power delivery. If possible I'd try the system with different power supply, one with a little more headroom or at least of a better quality.

I'm fairly confident with the issues you are having and everything tried it's a power issue, next step is just testing for it.

 

If it is the PSU I wouldn't recommend anything less than 600w for a 4070 system, also make sure it's a reputable make and model, if you'd like to know good power supplies or to check if ones you have or are looking at are good, use The Cultist PSU Tier List. 

I planned on changing this unit with a 750/850w Seasonic GX Focus if any problems appeared. I wanted to see if I can get away with not upgrading it and saving the money for a 1440p monitor but I guess I should make the responsible decision and not fry my components. Thanks for the response! 

[ExquisiteGem]

Found the issue. My ram was acting up. Lowered the clock speed by 200mhz and now it's stable.