No, you can't pair that with a RTX 2080Ti.... It only has one PCIe cable coming from the PSU. And it's way under specs for the card in the 1st place at 576W.Yes that is more than enough, you could even pair it with a RTX 2080 Ti
You're only looking at the PSU at a very high level (number of connectors, how many watts, etc.)TLDR Your PSU is fine for any single GPU on the market today with a consumer (not HEDT) platform.
While I guess you could technically use it with a 2080ti, I wouldn't, nor would I suggest it. Using a budget level PSU with a high end GPU just doesn't make sense to me. However that was not what the op asked so I think we should end that part of the conversation and stick to the OPs topic.
Ah, did not know thisYou're only looking at the PSU at a very high level (number of connectors, how many watts, etc.)
The S12/M12 uses a double forward high end that has what we call "hard switching". Newer graphics cards like the 2080Ti produce high transient loads during gaming, benchmarks, etc. that, at the very least, will make the main transformer vibrate with an audible noise or shut down during these transient spikes.
Add to this that the 620W is group regulated on the output side so it doesn't support the newer (S6 and higher) sleep states and the supervisor IC used is lacking some of the necessary protections.
It's just a poor choice for anything other than an entry level system.
YOUR power supply is a Seasonic X850 which is a COMPLETELY DIFFERENT platform that uses an LLC resonant front end and has DC to DC for the +3.3V and +5V. It's like comparing a Ford Fiesta to a Ford Mustang.
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