# Sd\_cmd: timeout error on VC707
**URL:** https://forums.sifive.com/t/sd-cmd-timeout-error-on-vc707/1239
**Category:** Freedom U500
**Created:** [May 22, 2018, 2:07pm UTC](https://forums.sifive.com/t/sd-cmd-timeout-error-on-vc707/1239 "2018-05-22T14:07:48Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@hesham](https://forums.sifive.com/u/hesham)
#### Post date: [May 22, 2018, 2:07pm UTC](https://forums.sifive.com/t/sd-cmd-timeout-error-on-vc707/1239/1 "2018-05-22T14:07:48Z")
Hi,
I have a VC707 board and I’m using the master branches of freedom and hifive-unleashed branch of freedom-u-sdk.
I have _no FMC_ for PCIe, so I cherry-picked [this commit](https://github.com/sifive/freedom/commit/61faa93fab886228840cc72cae0100af9411c789).
Synthesizing and building the tools and design go well. However, when I try to boot, I get the following output on the console:
> INIT
> CMD0
> sd\_cmd: timeout
> ERROR
I tried with 3 SD Cards (Samsung SDHC 16 GiB, Samsung micro SDHC 32 GiB and Toshiba 32 GiB), all result in the same outcome.
I am wondering if that’s an SD Card issue or it might be something to do with the exact freedom and/or freedom-u-sdk I’m using, given the no FMC thing.
Cheers,
Hesham
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### Author:  [@hesham](https://forums.sifive.com/u/hesham)
#### Post date: [May 22, 2018, 5:07pm UTC](https://forums.sifive.com/t/sd-cmd-timeout-error-on-vc707/1239/2 "2018-05-22T17:07:49Z")
Ok, I had to downgrade to Vivado’s 2016.4 version, now it works.