Seasonic Haswell compatibility

Darwineine

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Jan 25, 2017
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I got Seasonic SII12 620W, that isn't compatible with Haswell function.
However, desktop sleep mode works.

If the PSU isn't 'Haswell ready' then will there be damage if Sleep mode is executed? How does it work if PSU isn't Haswell?

 

Darwineine

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Jan 25, 2017
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Which of these are to avoid, could give an example of BIOS low power sleep state pls?

S1 - Sleep

CPU is stopped. RAM maintains power. Everything else is off, or in low power mode.

S2 - Sleep

CPU has no power. RAM maintains power. Everything else is off, or in low power mode.

S3 - Standby

CPU has no power. RAM maintains power, refreshes slowly. Power supply reduces power. This level might be referred to as “Save to RAM.” Windows enters this level when in standby.

S4 - Hibernate
 
Many mobos have it disabled by default which is probably why you aren't having any issues. It's c6 and c7 states. They're just lower power states. There's not really anything else to explain or give an example. You can still use the pc without any difference with it on or off. It just uses less power in sleep when it's on.

Psus that aren't capable will not turn back on after going to sleep. You'd have to power it off then on which isn't a proper shutdown for windows. There's no damage, just the same effects as a hard windows shutdown.
 

Darwineine

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Jan 25, 2017
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I see; was wondering whether the electricity from wall would overwhelm the PSU if it isn't active.
 

Darwineine

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Jan 25, 2017
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Apparently the shutdown & sleep modes practically are the same for non-Haswell PSU, if that's how it is.

The thing is, if the device doesn't know sleep mode, that means it isn't capable to do something about the electricity from wall while in that situation - like the devices those have sleep mode ability and to deal with electricity in such situation, it is a concern how the non-Haswell PSU will control the electricity from the wall.

*Perhaps because I have no proper idea of the entire thing, and the way I think it works, actually doesn't; therefore it isn't making sense.
 
There is no "sleep mode" for the psu. There are no modes at all. It gets a call for power and supplies it. If the pc wants a little power it gets a little power. If the pc wants a lot of power, it gets a lot of power. What makes it non haswell compatible is when the power gets too low, voltage goes out of spec and protections trip. It just can't regulate voltage correctly when such little power is going through it.

The power off the wall is an irrelevant concern. It's always going to be the same voltage and amps changes from load. You'd fear from any electrical device blowing up from what it sounds like but that's not how electrical devices work. The pc has no load, then it can't be overwhelmed. Only if the pc wants more power than the psu can handle will it be possibly overwhelmed and trips high current protection or temp, volt, etc. But this is on the opposite side, there's very little, almost no power. It's really getting underwhelmed and tripping on low.