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Thread: Old PSU and New CPU compatibility issue?

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    Lightbulb Old PSU and New CPU compatibility issue?

    Hi everyone i have a question about hardware compability.

    I have intel p55 mb & i5 750 system with Thermaltake Toughpower XT 750 (W0229RE) and i am going to upgrade with i7 6700k and new z170 chipset.

    As you know with new processor they have feature a new sleep state that isn't compatible with all power supplies. so sleep power draw is seriously low and it can trigger some psu under voltage protection and force a system reset.

    because of that psu vendors have indicated which of their power supplies fully support new processors and in the thermaltake list my psu is unlisted.

    Some people say that I can disable C7 or cpu sleep mode from the bios.I was thinking about keeping my psu to save money but any issue that can comes up is important before anything else

    so is it still reliable for running these new skylake cpu with that psu? or it technically makes more sense to get new one?

    Thank you.

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    I would be more concerned with the fact that it's a 5+ year old power supply then whether or not it supports the low-power sleep states.

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    That's a CWT PSH-based PSU, so not stellar by today's standards but should be serviceable. And with it being independently regulated, the C6/C7 states will not be an issue.

    What could be a potential problem in the future is the 5VSB cap (even though it's thankfully NCC, it's not impervious to wear & tear) and the primary signal decoupling cap (in this case a JunFu WG 10uF/50V) which tends to dry up after a while. You can see what I mean in Jeremy's review of the Toughpower. Still I imagine 2-3 more years can be had out of this PSU, after which it's probably safer to send it to me for refurbishing and buy a new one
    Careful what you wish for... You just might get it.

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    Quote Originally Posted by McSteel View Post
    after which it's probably safer to send it to me for refurbishing and buy a new one
    I guess North Disturbia may be a bit too far, with reference to the convenience of sending it to you.
    Best, Luca

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    Thank you all of your comments I decided to buy new one
    I wish I would send this old and gold unit to you but I guess we are too far from each other

    So for new one I got one and last question. I will buy psu from amazon and for our country tax free limit is 82 dollar.

    So that I got one psu Evga SuperNova G2 550W. (79$)

    is that psu capable to run gtx 1070 and i7 6700k or i should go with 650w version? (94$ but also 20$ tax so it costs 105$)

    Edit: if i have to go with 650w also supernova P2 (platinum) 650w is 98$ (108$ with tax) so maybe it can join this challange too
    Thank you again

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    Quote Originally Posted by dennjs View Post
    is that psu capable to run gtx 1070 and i7 6700k or i should go with 650w version? (94$ but also 20$ tax so it costs 105$)
    A high quality 300/350W shouldn't have a problem with a PC like that.

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    Quote Originally Posted by dennjs View Post
    So that I got one psu Evga SuperNova G2 550W. (79$)

    is that psu capable to run gtx 1070 and i7 6700k or i should go with 650w version? (94$ but also 20$ tax so it costs 105$)

    Edit: if i have to go with 650w also supernova P2 (platinum) 650w is 98$ so maybe it can join this challange too
    AFAIK the only actual benefit of the 650W siblings (either G2 or P2) is that those PSUs are vastly quieter than the 550 G2 (albeit this one is not really obtrusive).
    Best, Luca

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    Quote Originally Posted by quest for silence View Post
    I guess North Disturbia may be a bit too far, with reference to the convenience of sending it to you.
    Guess I need to change that to my actual location, don't I?
    Careful what you wish for... You just might get it.

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    Quote Originally Posted by McSteel View Post
    Guess I need to change that to my actual location, don't I?
    North Disturbia is nicer, mate.
    Best, Luca

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    Can send ya new caps, than it should work for another decade unless something else goes wrong.

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