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SFX to ATX adaptor plate

by hdonk, published

SFX to ATX adaptor plate by hdonk Nov 29, 2012

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This plate allows an SFX PSU to be mounted in the hole for an ATX PSU.


Print the plate.
Drill out the inner 3 holes with a 0.138 inch diameter drillbit.
Tap the outer 4 holes with a 6-32 tap. (I've found taping is unecessary)

This plate is modified from stock SFX to match "CIT Micro Atx Power Supply". Stock SFX needs a width of 100, not 125.

I've added reinforcing ridges around the outside.

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You should consider grounding the case to the power supply. The case or shell of the PSU is grounded and should be touching the case in some fashion for saftey and emf protection.

Thanks, that's a good point.
Although the case and CPU are grounded through the motherboard.
And in this chassis, the IEC extension lead includes a link to ground the case.
But if that wasn't present, then yes, an additional link would be required.