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| SanDisk Ultra 2 Controller problem? http://forum.hddguru.com/viewtopic.php?f=10&t=44107 |
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| Author: | Ihab [ February 15th, 2024, 6:26 ] | |||
| Post subject: | SanDisk Ultra 2 Controller problem? | |||
Hello guys! I have a SanDisk Ultra 2. At first iit was possible to get it ready via short on PC3K but after some minutes it stoped. I lloked via termal cam and saw that the controller is getting some temperature... like 38C.. not so special. But i dont know whats the problem... could anyone help me or give me some advice? Thank you! Greetings, Ihab.
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| Author: | Lardman [ February 15th, 2024, 7:42 ] |
| Post subject: | Re: SanDisk Ultra 2 Controller problem? |
If it used to come ready and after a delay and now doesn't it would point towards firmware problems from degraded nand. Supported in pc3K ssd. |
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| Author: | Ihab [ February 21st, 2024, 3:37 ] |
| Post subject: | Re: SanDisk Ultra 2 Controller problem? |
Lardman, hello, sadly it doesnt come ready... even after short.. |
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| Author: | Lardman [ February 21st, 2024, 5:07 ] |
| Post subject: | Re: SanDisk Ultra 2 Controller problem? |
Is it going into safe mode? |
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| Author: | Ihab [ February 21st, 2024, 10:06 ] |
| Post subject: | Re: SanDisk Ultra 2 Controller problem? |
Lardman, not anymore. |
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| Author: | Lardman [ February 21st, 2024, 11:01 ] |
| Post subject: | Re: SanDisk Ultra 2 Controller problem? |
If you're not getting anything from the controller check the power rails to ensure it is being powered correctly. I don't have a pcb to check for you I've looked. Also check the power consumption pattern and usage. I've not seen a dead controller on these - perhaps others have? |
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| Author: | Ihab [ February 21st, 2024, 12:25 ] |
| Post subject: | Re: SanDisk Ultra 2 Controller problem? |
Lardman, okey, i will check it. Thank you very much. |
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| Author: | fzabkar [ February 21st, 2024, 12:51 ] |
| Post subject: | Re: SanDisk Ultra 2 Controller problem? |
What are the voltages at L1, L2, L3, L4? |
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| Author: | Ihab [ February 22nd, 2024, 4:05 ] |
| Post subject: | Re: SanDisk Ultra 2 Controller problem? |
fzabkar, Hello, L1 seams to get nothing L2 also seams to get nothing L3 around 1.8 L4 around 0.7 but not 100% sure on L1 and L2 to be honest... |
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| Author: | fzabkar [ February 22nd, 2024, 4:20 ] |
| Post subject: | Re: SanDisk Ultra 2 Controller problem? |
It would be unusual to have two step-down converters fail at the same time. Are you measuring the voltage between the inductor and ground? |
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| Author: | Ihab [ February 22nd, 2024, 4:25 ] |
| Post subject: | Re: SanDisk Ultra 2 Controller problem? |
fzabkar, I was measuring on each side from the inductors. Do you think it would be worth to change them? |
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| Author: | Lardman [ February 22nd, 2024, 4:31 ] |
| Post subject: | Re: SanDisk Ultra 2 Controller problem? |
Work the rail backwards until you find some voltage, the inductors don't produce it. |
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| Author: | Ihab [ February 22nd, 2024, 4:55 ] |
| Post subject: | Re: SanDisk Ultra 2 Controller problem? |
Lardman, fzabkar, I don't know why, but the SSD ist not taking anything now.... Not sure what i can do to be honest... |
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| Author: | Lardman [ February 22nd, 2024, 5:38 ] |
| Post subject: | Re: SanDisk Ultra 2 Controller problem? |
Ihab wrote: Lardman, fzabkar, I don't know why, but the SSD ist not taking anything now.... Start at the 5v input at the sata connector and work forwards then - this is basic troubleshooting and certainly not something your should be learning to do on a clients drive. Buy/get an identical donor drive and work with it until you understand how power is delivered to the major ICs.
Not sure what i can do to be honest... |
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| Author: | Ihab [ February 22nd, 2024, 5:41 ] |
| Post subject: | Re: SanDisk Ultra 2 Controller problem? |
Lardman, Thats a good Advise! Thank you, i will do it like that. And i was just checking it, didnt worked on it jet. |
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| Author: | Ihab [ February 22nd, 2024, 8:30 ] |
| Post subject: | Re: SanDisk Ultra 2 Controller problem? |
Lardman, Ihab, It was a problem with the PC3K... SSD has still the same problem 
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