knute
Posts: 473
Joined: Thu Oct 23, 2014 12:14 am
Location: Texas
Contact: Website

Need 5V for my fan, pins covered by RTC?

Tue Oct 01, 2019 9:23 pm

I've got a Pi4 in a case with a fan and a RTC that covers pins 1-6. The fan needs 5V. Is there another pin or place to get 5V on the board? What about the POE pins? I thought as a last resort I could use one of the USB ports for power but that uses up a USB that could be used for something more interesting.

Thanks

trejan
Posts: 585
Joined: Tue Jul 02, 2019 2:28 pm

Re: Need 5V for my fan, pins covered by RTC?

Tue Oct 01, 2019 9:33 pm

knute wrote:
Tue Oct 01, 2019 9:23 pm
The fan needs 5V. Is there another pin or place to get 5V on the board?
No. Solder to the bottom of the Pi or top of the RTC. You've already mentioned powering it via USB.
knute wrote:
Tue Oct 01, 2019 9:23 pm
What about the POE pins?
No. That is where the PoE HAT gets the PoE power from. Those 4 pins are connected to the transformers in the Ethernet socket. It feeds the 5V in via the GPIO header.

LTolledo
Posts: 1963
Joined: Sat Mar 17, 2018 7:29 am
Location: Anime Heartland

Re: Need 5V for my fan, pins covered by RTC?

Fri Oct 04, 2019 9:26 am

something like this (hint: not the GPIO extenders)
Extend_headers.jpg
Extend_headers.jpg (209.9 KiB) Viewed 352 times
"Don't come to me with 'issues' for I don't know how to deal with those
Come to me with 'problems' and I'll help you find solutions"

Some people be like:
"Help me! Am drowning! But dont you dare touch me nor come near me!"

knute
Posts: 473
Joined: Thu Oct 23, 2014 12:14 am
Location: Texas
Contact: Website

Re: Need 5V for my fan, pins covered by RTC?

Fri Oct 04, 2019 9:35 pm

Did you solder that to the board?

LTolledo
Posts: 1963
Joined: Sat Mar 17, 2018 7:29 am
Location: Anime Heartland

Re: Need 5V for my fan, pins covered by RTC?

Mon Oct 07, 2019 12:37 pm

yup!
"Don't come to me with 'issues' for I don't know how to deal with those
Come to me with 'problems' and I'll help you find solutions"

Some people be like:
"Help me! Am drowning! But dont you dare touch me nor come near me!"

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