Incompability problem between Seasonic S12ii 620W PSU and motherboards.

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TechnoStyle

TechnoStyle

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Feb 26, 2017
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Hello!

Seasonic S12II 620W PSU is incompatible with most of ASUS motherboards according to device support lists of ASUS. I was looking for RAM QVL lists and found this issue. I didn't hear such a problem before. According to PC part picker website, no compability issues found between my PSU and ASUS or MSI MOBOs.

I checked some Asrock and Gigabyte MOBOs and didn't find such a PSU compability list. So, all Asrock and Gigabyte MOBOs are compatible with any PSU?
Maybe Asus and MSI made some test for some PSUs and realese these PSU compability lists.

Also I saw lots of Youtube videos about new PC system advices. Lots of advice have this damned PSU-MOBO incompability problem. But their system works without a problem. They can reach high FPS in games etc.

Any advice for me? Maybe I'm overthinking about it. :S
 
Solution
J
''I believe your psu is not Haswell Certified, but you can still adjust the bios sleep states''

if the Seasonic S12ii 620W it is and nothing on that anymore from seasonic on that since 2013 when there units that were not all had foot notes on stating that like mine did the latest models same as mine don't have anymore

now if you got a old unit you hand me down to a new build or you were sold a old stock unit ????

you can always email there support with your models serial # and ask if its a newer unit haswell ready one or a old batch unit that's not

none of my PSU's are haswell ready but been using them on haswell for years with out issue
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Zerk2012

Zerk2012

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A QVL is only what has been tested with the board and in no way means it's all that will work with the board.
Some of the older model power supplies have problems with the low voltage sleep states but most boards come with that already disabled.
Yes your overthinking it.
 
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J

junkeymonkey

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Nov 11, 2013
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I also think the sleep state issue was on psu units built before haswell release the ones today should be fine and that taken care / adjusted for in todays units .. also notice it was a lot on PSU's 600w and below at the time

still cant hurt to check the manufactures spec sheets my PSu is not a haswell ready but use it on haswells with out issues or any bios changes

you maybe looking at old unchanged data that never been updated from its first release tests or QVL list
 
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TechnoStyle

TechnoStyle

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Feb 26, 2017
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My PSU isn't compatible with C6 C7 sleep states but it isn't a problem for me. I will close them from BIOS/ UEFI.
Also I believe that if I close C6 C7, my PC will sleep with old style stand by.
I think like you friends. No compability issues with any mobo and any psu these days...
I don't have new MOBO and CPU right now. Looking for Ryzen 5. If it is nice, then I will buy it. Otherwise Kaby Lake is another solution.
Thanks for help!!
 
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J

junkeymonkey

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Nov 11, 2013
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''I believe your psu is not Haswell Certified, but you can still adjust the bios sleep states''

if the Seasonic S12ii 620W it is and nothing on that anymore from seasonic on that since 2013 when there units that were not all had foot notes on stating that like mine did the latest models same as mine don't have anymore

now if you got a old unit you hand me down to a new build or you were sold a old stock unit ????

you can always email there support with your models serial # and ask if its a newer unit haswell ready one or a old batch unit that's not

none of my PSU's are haswell ready but been using them on haswell for years with out issue
 
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