This 4TB Silicon Power ACE A58 SSD isn't recognized by my USB to SATA adapter. Here's a picture with the voltages I measured.



On my desktop, the computer won't POST, failing with a power error. I've checked all the capacitors I can see and none are short.

If I leave it plugged into power, the RayMX chip gets warm (32C) but I don't feel any of the capactiors get warm. I don't have a thermal camera.

Any suggestions on where to go from here?

I should add that I'm only interested in recovering the data from the drive. I took it to a local data recovery shop, but they said their LINUX test platform couldn't recognize the drive. No lights appear on the drive when I apply power.

The voltages seem OK.

_________________
A backup a day keeps DR away.

Bummer. No obvious issue then. I was going to send it to flashbackdata to see if they could retrieve my files.

FWIW, these are the safe mode shorting points for a different Realtek based SSD:

https://www.hddoracle.com/download/file.php?id=10501 (you may need Firefox to access the site at the moment)

_________________
A backup a day keeps DR away.

Thanks for your help fzabkar.

I can't read the jumper numbers on that image so I'm not sure what jumper number that is on my board.
I'm just learing about SSD DR and am not sure what safe mode does and how it might help me. I don't have a PC-3000. I just have a USB SATA adapter, multimeter and a willingness to learn.

Is there a place where I might read a little more SSD DR to get me started?

I'm not a DR pro. Most SSD have jumpers which you short with tweezers during power-on, and then release after a few seconds. This forces the SSD controller to power up in safe mode or "ROM mode". In this mode it usually identifies itself with a factory alias and reduced capacity. This then tells you that the controller has basic sanity.

Here are some examples:

http://vlo.name:3000/hw/ssd/rommode/

I don't know the relevant shorting points for your SSD, so you would need to be careful. Obviously you wouldn't want to short a power supply to ground, for example.

_________________
A backup a day keeps DR away.

This would be my guess:

_________________
A backup a day keeps DR away.

I am with Flashback Data, I saw your inquiry come through. I can definitely take a look at it. Good chance it is a Firmware fault which I am not sure there is a fix for it. But it will be a free eval. Other issue could be Nand degradation.

Thanks. I was going to send you my drive tomorrow once I find a mailer. I wasn't willing to try putting the drive into safe mode.

Just to follow up. Turned out to be a firmware issue. This controller isn't supported by PC-3000 yet so the data is not recoverable.