Skylake ready PSU- whats that mean?

[Gazi]

I was going to buy new PSU for my i5 6600k build and now i get some info there are some compatibility issues, for a freaking PSU unit? It occurs when u put system to sleep? This system runs now on my 10 years old chieftec with 0 "ready" stuff and it does fine going out of sleep. Can someone explain it to me, because i was going to buy P1-550S-XXB9 PSU and now iam worried. I dont want to disable any functions in bios to make it work or sacrifice things like sleep mode or not auto adjusting fan speeds.

 

[Eximo]

Haswell and Skylake processors are very very low power CPUs at idle. If they are the main power draw in the system (A system with only a core series chip and maybe a single SSD or harddrive the system will draw very little power while booting)

While decent power supplies can provide appropriate voltage at 'no-load' conditions, many cannot, and a system could potentially fail POST due to too high or low voltage being supplied the PC. Or may damage components. PSUs are built to be efficient between 50-80% load.

Further to this, many older power supplies also need to have a balanced output. With those supplies you must draw relational amounts of 12V, 5V and 3.3V. If one is underloaded this can also lead to poor voltage output. These power supplies are generally the tier 4 and 5 supplies you see with wildly inflated outputs. It is because they are including the maximum output of all rails simultaneously, which is almost never possible.

 

[Gazi]

i have 10 10y old chieftec with single 4 pin running this system for 3 days(with gaming) and i havent got single shut down or bsod. Wont it damage it?

There is a list of skylake compatible psu? This xfx wont be any good?

 

[Eximo]

A 10 year old chieftec is something I wouldn't have risked, but if it is working it will hopefully be okay as a temporary solution.

As long as your system is drawing more then a power supply's minimum load at startup there is nothing to worry about.

Hibernation is really the only thing to disable, and you can do that in Windows if you want. If you get a Haswell or Skylake ready supply it won't matter.

There is a list, but it is not comprehensive. Any recently produced power supply should be fine. XFX has a great OEM in Seasonic and all theirs are fine to use with any system.