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Dead Intel 535 Series 240GB SSD http://forum.hddguru.com/viewtopic.php?f=10&t=42463 |
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Author: | fzabkar [ May 31st, 2022, 14:49 ] |
Post subject: | Re: Dead Intel 535 Series 240GB SSD |
There is a group of three 2R2 inductors, plus two smaller inductors in the middle of the group. Measure their resistances to ground. That will tell you if any of the onboard supplies are shorted. If there are no shorts, measure the voltages at each of the inductors. Also check the e-fuse (U1, 10-pin IC, marking "35") near the 5V SATA pins. There should 5V on its input pins and 5V on its output. http://www.users.on.net/~fzabkar/Datasheets/DATAURLS.HTM |
Author: | dataminer [ June 2nd, 2022, 13:13 ] |
Post subject: | Re: Dead Intel 535 Series 240GB SSD |
Thanks fzabkar. Working on and will get right back with that info. |
Author: | dataminer [ June 2nd, 2022, 17:42 ] |
Post subject: | Re: Dead Intel 535 Series 240GB SSD |
The 2R2 inductor nearest the SATA connector is reading 27.1 Ohms. The other 2 2R2 inductors are getting no reading (or OL). The 2 smaller inductors in the center of the group briefly read 135.6 Ohms then go to OL. The e-fuse at U1 readings are a bit fluky. I'll sometimes get 4.8v-5.0v on all pins, sometimes nothing on either the input or output, sometimes just the input side and some outputs. It may be the residual PCB lacquer I'm not sure. |
Author: | dataminer [ June 2nd, 2022, 17:50 ] |
Post subject: | Re: Dead Intel 535 Series 240GB SSD |
Forgot to mention the voltage checks: The 2R2 inductor nearest the SATA connector reads 1.0v. The other 2 2R@ inductors read 2.8v. The upper most (in the photo) of the 2 smaller inductors reads 1.8v. The lower smaller inductor reads 1.0v. |
Author: | dataminer [ June 3rd, 2022, 10:44 ] |
Post subject: | Re: Dead Intel 535 Series 240GB SSD |
Correction to my last post: The other 2 2R2 inductors read 2.8v. |
Author: | fzabkar [ June 3rd, 2022, 13:04 ] |
Post subject: | Re: Dead Intel 535 Series 240GB SSD |
The supplies seem OK. It appears to me that you have a "firmware" problem. |
Author: | dataminer [ June 6th, 2022, 14:47 ] |
Post subject: | Re: Dead Intel 535 Series 240GB SSD |
Is it possible to correct this fzabkar? |
Author: | fzabkar [ June 6th, 2022, 14:55 ] |
Post subject: | Re: Dead Intel 535 Series 240GB SSD |
The flash controller appears to be a SandForce SF-2281. Only a handful of people claim to be able to recover such SSDs. |
Author: | dataminer [ June 6th, 2022, 16:04 ] |
Post subject: | Re: Dead Intel 535 Series 240GB SSD |
Oh that's not good news. I appreciate the help in diagnosing it anyway fzabkar! |
Author: | fzabkar [ June 6th, 2022, 16:12 ] |
Post subject: | Re: Dead Intel 535 Series 240GB SSD |
I believe these SSDs have a UART port where you can observe diagnostic messages during power up. |
Author: | dataminer [ June 6th, 2022, 17:20 ] |
Post subject: | Re: Dead Intel 535 Series 240GB SSD |
Checking on that. |
Author: | sourcerer [ June 7th, 2022, 6:34 ] |
Post subject: | Re: Dead Intel 535 Series 240GB SSD |
J1 could be a UART J2 could be JTAG J3 could be a SAFE-BOOT / TECH-MODE J4 could be JTAG |
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