What power connector from the PSU to connect to the video card asus radeon 7790?

Question

Iron

The bottom line is that during games the computer freezes tightly (the screen blackens, the sound loops), only reboot helps. Surprisingly, the tests are passed with a bang (FurMark, BurnInTest, Aida64). All indicators of sensors of everything and everything are normal. I sin on the stock Chinese case PSU and the lack of power supply for the card (although it seems to be quite energy efficient 85W). Superficially googling, I realized that there are different currents on the PSU wires - which one to connect the card to? The PSU is built into the CASECOM KM-5288 550W case. Is it all about nutrition? PSU itself: vk.cc/3rACuH

Answer 1

The power supply has 2 outputs 12V. One - for a 4-pin connector, which is in the motherboard, the second - for a 6-pin connector, which is in the video card. Connected correctly.
Hang-ups due to the PSU, or something else - it's not clear. Except how to throw in another "branded" or proven PSU and try - there are no options.

Answer 2

No, freezes for lack of power are uncharacteristic. Spontaneous reboots will be characteristic.
Once the FurMark bagel passes - no game will load the video card stronger than it - it means that this dinosaur with a declared power of 400 watts provides the current strength to the video card within the normal range. Dinosaur - because signed ATX2.03, this standard was outdated back in 2005. 400w - because. PCs consume almost all the energy at + 12V - and up to 380W are declared there.
Here are the output voltages and ripples - they can easily be outside the normal range. Checked with an oscilloscope. Or just with another PSU.
Try to run LinX again, first separately, then with the number of threads equal to the number of cores-1, in parallel with the donut.
Drivers updated? It is too early to exclude soft reasons.