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mSata ssd Sandsik Ultra II burned. Need help http://forum.hddguru.com/viewtopic.php?f=10&t=35113 |
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Author: | fzabkar [ March 9th, 2017, 14:49 ] |
Post subject: | Re: mSata ssd Sandsik Ultra II burned. Need help |
WD's datasheet is essentially useless ... SanDisk Ultra II mSATA SSD datasheet: http://downloads.sandisk.com/downloads/qsg/ultraii-msata-ssd-datasheet.pdf Here is a photo from the above document: Attachment: Two of the three "A" coils appear to be fractured. )) Here is the pinout for a standard card: MiniCard For NoteBook Computers (Pinout): http://www.interfacebus.com/Mini_PCI_Express_Bus.html#b The odd numbered pins from 37 to 51 are reserved. In your case pins 39 & 41 appear to be assigned as power pins. I would begin by identifying the power and ground pins on your adapter. I would also identify the power and ground pins at Dell's connector. Your photos are incomplete. There is an additional switchmode supply at the other end of the PCB, behind the two NANDs. The good thing about the PCB layout is that the voltage test points appear to be marked with white circles. It would help immensely if you could identify the markings on all the ICs. In particular, the 16-pin IC near the NANDs appears to have a burn mark on it. Alex13 wrote: ... a little computer dead staff for the donor elements ... Man, that's a brutal work environment. |
Author: | Alex13 [ March 9th, 2017, 16:19 ] | |||
Post subject: | Re: mSata ssd Sandsik Ultra II burned. Need help | |||
fzabkar wrote: WD's datasheet is essentially useless ... SanDisk Ultra II mSATA SSD datasheet: http://downloads.sandisk.com/downloads/qsg/ultraii-msata-ssd-datasheet.pdf Here is a photo from the above document: Attachment: The attachment PCB_bot_WD_datasheet.jpg is no longer available Two of the three "A" coils appear to be fractured. )) Here is the pinout for a standard card: MiniCard For NoteBook Computers (Pinout): http://www.interfacebus.com/Mini_PCI_Express_Bus.html#b The odd numbered pins from 37 to 51 are reserved. In your case pins 39 & 41 appear to be assigned as power pins. I would begin by identifying the power and ground pins on your adapter. I would also identify the power and ground pins at Dell's connector. Your photos are incomplete. There is an additional switchmode supply at the other end of the PCB, behind the two NANDs. The good thing about the PCB layout is that the voltage test points appear to be marked with white circles. It would help immensely if you could identify the markings on all the ICs. In particular, the 16-pin IC near the NANDs appears to have a burn mark on it. Alex13 wrote: ... a little computer dead staff for the donor elements ... Man, that's a brutal work environment. Hello mr.fzabkar , i was really hoping for your answer . Here is more complete pictures. >I would begin by identifying the power and ground pins on your adapter. I would also identify the power and ground pins at Dell's connector. Going to do that thnaks for advice.
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Author: | fzabkar [ March 10th, 2017, 16:16 ] |
Post subject: | Re: mSata ssd Sandsik Ultra II burned. Need help |
I can see 3 switchmode regulators, a TVS diode, and what looks to be a power MOSFET. If I were doing this job, I would identify all the IC markings and then determine which of them are connected to the supply pins of the card. However, I would first verify the pinout of the connectors of both the Dell machine and the adapter. A photo of the adapter would help, too. |
Author: | fzabkar [ March 10th, 2017, 17:32 ] |
Post subject: | Re: mSata ssd Sandsik Ultra II burned. Need help |
Pages 20 & 21 of the following document list the interface pinout for an mSATA SSD: http://www.vikingtechnology.com/uploads/msata_datasheet.pdf Some pins are vendor specific. Only the +3.3V supply pins are connected. I expect that the SanDisk SSD would have a similar arrangement, but one can't be certain. |
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