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Thread: are group regulated psus dangeros in some circumstances?

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    Default are group regulated psus dangeros in some circumstances?

    Is a group regulated psu dangerous on an low power consuming office PC , using a haswell or newer CPU with integrated graphics? i have read an article that explains that entering a low power state like c6/c7 the system pull virtually no power on the +12V rail(which is used to power the cpu/gpu) while other system components continue to pull significant amounts of power from the +3.3V and +5V rails. and this type of scenario is leading to cross-loading. which in turn makes the 12v rail voltage to go higher than ATX's standards , while 5v and 3.3v drops bellow 5%,which in the end affects the hardware's longevity. Will disabling c6/c7 and higher c8 c10 energy saving states in bios be a workaround to avoid this type of problem?

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    You should disable those sleep states.

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    bluehillday (05-25-2019)

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    that's the plan. curious is the fact that lots of psus are sold as ''haswell cerified'' and that they are able to support lower C6/C7 states which require a small load of 0.05 amps. even tho these are still group regulated psus. and they seem to not do that in the safest way

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    Actually, some group regulated PSUs perform far better than others. Really depends on the unit. But, in general, I would just avoid using group regulated units altogether.

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    Yeah, there are enough affordable DC-DC designs out there now that group regulation needs to go away for good.

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    bluehillday (05-26-2019)

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    Quote Originally Posted by Oklahoma Wolf View Post
    Yeah, there are enough affordable DC-DC designs out there now that group regulation needs to go away for good.
    Ia gree
    Many manufacturers are having some cheapish DC-DC units in their lineup (400W or more), wich makes the Group Regulated pretty undesirable.

    Or rather: Just stay away from them, there is hardly any reason for them these days.
    the 5-10 that DC-DC units cost more are totally worth it.

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    Quote Originally Posted by Oklahoma Wolf View Post
    Yeah, there are enough affordable DC-DC designs out there now that group regulation needs to go away for good.
    For any future purchase,totally. I was doing some research to find some info of how bad it is for my current office PC.

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