Asus ROG STRIX Z490-E GAMING Manual page 24

5. VRM Heatsink Fan header
The VRM Heatsink fan header is for connecting the VRM Heatsink fan on the
integrated heatsink. You may also install a VRM fan to a fan holder and connect it to
the VRM Heatsink header to cool the VRM when the VRM's temperature becomes too
high.
Please refer to the Additional cooling kit installation section in Chapter 2 for more
details on installing the fan bracket.
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Chapter 1: Product Introduction