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Old 29-04-17, 11:06 PM
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steverebo steverebo is offline
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RM750X not shutting down properly

Ok I've got an issue where when I power down my system my cpu fan header won't shut off and nor will the leds attactched to my sata cable I need to actually shut my pay down with the switch at the back. Is this a know issue or have I just been given a dud psu?

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Old 30-04-17, 11:23 AM
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If the CPU fan keeps spinning and its only connected to the mobo - it sounds like a board problem.
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Old 30-04-17, 12:54 PM
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I initially thought that but the leds that are attached to a sata connector from the PSU also remain on although again they are dinner than if the power was fully on. I have no mechanical drives so can't check that.
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Old 30-04-17, 01:12 PM
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Focus on the CPU fan - if its connected to the CPU fan header and nothing else (not an AIO etc) thats going to tell us more than the sata I think
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Old 30-04-17, 01:49 PM
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Well I've ordered another psu that's arriving today (Love Amazon same day delivery) and I'm returning my current one as it's only a week old if it still happens then it's the motherboard and a total ball ache as it's a custom hardline loop
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Old 30-04-17, 03:23 PM
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Ill be interested to hear how it pans out
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Old 30-04-17, 09:30 PM
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It's definitely not the power supply unless I've been unlucky enough to get two faulty supplies which is highly unlikely.

Now it's time to trouble shoot this motherboard a bit more before having to completely drain and strip my loop to return the thing
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Old 01-05-17, 12:10 AM
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Found the problem, it was my k70 rgb keyboard the second usb plug was somehow shorting my board can't think how but the second I removed it the problem was solved
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Old 01-05-17, 03:23 AM
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Certain USB ports on the board will have constant power to them, from what I remember, the feature can be configured through the AI suite software. Useful for charging USB devices etc. At a guess I would say the second USB connector on the keyboard is receiving power when the system shuts down, possibly causing either a power feedback to parts of the board or a type of wake from keyboard signal to the system.
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Old 01-05-17, 03:33 AM
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At least you dont have to drain your system that must be a huge relief
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