Hi friends!

I hope I can get some help.

I have a Toshiba SSD (THNSFC128GBSJ) that doesn't get any power. I plugged it into PC3K; the SSD gets ready, but without power input.
The controller is not supported. I already checked the capacitors to ground and didn't find a short.

Does anyone have any advice for me? I would appreciate it!

It can't get ready if it's taking no power. Check what voltage rails you actually have present and lets see what PC3K universal util actually shows.

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There appears to be an smt fuse at the SATA 5V input. Check if 5V is present at the "GU" diode.


BD9139MUV, Rohm, Synchronous Buck Converter, 3A, 1MHz, 2.7V - 5.5V in, QFN-16 (VQFN016V3030):
https://www.datasheetarchive.com/datasheet?id=b8f31bd1fdf27a891e591b6f34aba9828d1b0d&type=M&term=bd9139
https://download.s21i.faiusr.com/13099392/0/0/ABUIABA9GAAgm-nbzAUonJKv8QQ.pdf?f=X1C+Wistron+Genesis-1+LGS-1+11246-1.pdf&v=1503067291 (page 89)
https://www.hobbielektronika.hu/forum/getfile.php?id=347437 (page 89)

BD9151MUV, Rohm, Dual Step-down Switching Regulator, 2.8V - 5.0V, 1Mhz, 0.4A / 0.8A, QFN-20 (VQFN020V4040):
https://www.datasheetarchive.com/datasheet?id=b04a9b6613026cc26259e768ec487fd37e5513&type=M&term=bd9151

I'm not sure about this ...

R5323N039B, Ricoh, dual LDO regulator, 1.8V / 3.1V, 200mA, marking U9xx, SOT-23-6 (SC-74):
http://datasheet.elcodis.com/pdf2/108/89/1088945/r5323z013b.pdf

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