power supplies question about watts

Abdelrahman_3 · Jun 14, 2016

i want to get seasonic m12ii evo 620

http://prntscr.com/bfzkg3
they say maximum power is 576w
is that mean the PSU is 576w or 620w ?

InvalidError · Jun 14, 2016

That's 576W combined total for the 12V outputs, 620W total all outputs combined.

Abdelrahman_3 · Jun 14, 2016

InvalidError :

i heard the 576w for only the gpu and cpu is that right?

InvalidError · Jun 14, 2016

Everything that gets power from the 12V rails, which is nearly everything in modern PCs.

Abdelrahman_3 · Jun 14, 2016

InvalidError :

what about the rest watts (44w)

InvalidError · Jun 14, 2016

As I said, *nearly* everything. 3.3V and 5V are still used for minor loads like supervision circuitry and analog stuff but all of the major loads (CPUs, GPUs, DRAM, HDDs, ODDs, fans, etc.) draw the bulk of their power from point-of-load switching regulators powered from the 12V rail.

Abdelrahman_3 · Jun 14, 2016

InvalidError :

http://prntscr.com/bghtrx
i get this in psu watts calculator
the 12v rail is 465w
is that mean i am safe as my psu can run untill 576w at 12v rail?

InvalidError · Jun 14, 2016

That 465W is likely heavily inflated since even an overclocked i7-4960X with a 980Ti uses less than 400W.

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