# 12V DC killed LimeSDR-USB

**URL:** https://discourse.myriadrf.org/t/12v-dc-killed-limesdr-usb/7736
**Category:** General Discussion
**Created:** [18 October 2022 23:19 UTC](https://discourse.myriadrf.org/t/12v-dc-killed-limesdr-usb/7736 "2022-10-18T23:19:49Z")
**Posts on this page:** 1
**Showing post:** 3

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### Author: ![jtang](https://avatars.discourse-cdn.com/v4/letter/j/b19c9b/32.png) [@jtang](https://discourse.myriadrf.org/u/jtang)
#### Post date: [23 October 2022 23:50 UTC](https://discourse.myriadrf.org/t/12v-dc-killed-limesdr-usb/7736/3 "2022-10-23T23:50:58Z")

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Update: After reading a similar thread at: [I killed my LimeSDR... maybe - #2 by OrsonMaxwell](https://discourse.myriadrf.org/t/i-killed-my-limesdr-maybe/6101/2)  
I supplied VCC\_INT with 4.8V directly on J21 and the board powered up and enumerated successfully.

I suspect this may be the same dead FPF3042 issue that user was experiencing. I’ll attempt the same removal of FPF3042 from the board and jump R167 to see if that resolves it.

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