Janooo

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About Janooo

  1. The question is: What are the correct power suppply specifications. Just telling me some numbers, without stating which one is the correct and which one the wrong power supply, doesn't really help much. if you did that, then we can talk about the diode, if this talk is necessary at all then. Are you sure that the adapter is working? Try the loopback test. If that works, you probably have connected RX and TX the wrong way on the HDD. i amke meauserement and this 21.8V - 18.5V was this which i used accidentali and correct have 14.2V it showed it when i measured it without connection and with connection to external hdd. i hope it is everything what you need. Thank you for patience You most likely killed your external hard drive enclosure and MAYBE the drive, too. If it's a 500GB 7200.11 it should definitely have the suppressor diode to save the drive. That means the drive is unuseable now, but could perhaps be recued pretty easily. BUT, did you test the drive alone, without the external enclosure? If you did and the drive appears to be dead, then I'll tell you where to look for the diode(s). If one of the diodes burnt through, then you probably have a short circuit on the S-ATA power connector. So check that first. Have a look at this: http://en.wikipedia.org/wiki/Serial_ATA And check if there are any short circuits on the power connector where there shouldn't be any. Remember, I had one between 12V and GND. So the multimeter in "continuity test" beeped when connecting one probe to the 12V power planes and the other to a GND plane. Regarding my own drives: BTW, I came to the conclusion that my last 500GB drive seems to have an electrical defect. It began to sound strange and the PCB get pretty hot in some spots where the good drives stay much cooler. The 1TB drive seems to have another form of defect which I'm not quite sure about yet. I can change some things through commands on the terminal, but as soon as I remove power, it reverts completely back to where it used to be. Not being detected by BIOS and without much information. That means for example I can restore the default drive settings by using the command "F,,22", but after removing power, it'll be back to the old settings. And everytime I try the command "m0,2,2,,,,,22", the drive stops spinning (I heard and felt that it did) and the terminal just hangs. Very strange, indeed. hi i have checked if there is any shotcut but there isnt, i think i did it right. I checked it when my hdd was out of enclosure its looks to be fine my enclosure is working fine, because i am using there 2 hdd they are working well. Can you please tell me the next step, and sorry for my english. Thank you
  2. The question is: What are the correct power suppply specifications. Just telling me some numbers, without stating which one is the correct and which one the wrong power supply, doesn't really help much. if you did that, then we can talk about the diode, if this talk is necessary at all then. Are you sure that the adapter is working? Try the loopback test. If that works, you probably have connected RX and TX the wrong way on the HDD. i amke meauserement and this 21.8V - 18.5V was this which i used accidentali and correct have 14.2V it showed it when i measured it without connection and with connection to external hdd. i hope it is everything what you need. Thank you for patience
  3. 15 seconds delay sounds strange. That is really slow. Much too slow I'd say. Something is wrong. And additionally you perhaps have RX and TX connected the wrong way. Did that accidently yesterday and of course no response from terminal then. Switched them and all is working (besides my problem described above). Give it a try and also make sure that the adapter is working a 100% before using it on the actual drive. You sure don't want to make it worse than it already is. Using a wrong power supply (BTW, define "wrong"; wrong voltage, wrong amperage or what? details please) normally has no direct efffect on the firmware. So you probably bricked your drive due to overvoltage. BUT, there is a chance that the drive has a supressor diode that just burnt through. Replacing that could bring the drive back. But that is only a guess. I recently had a 500GB 7200.11 here that had exactly that problem. There was a short between 12V and GND, which was caused by overvoltage on the 12V rail. Replacing or just desoldering of the suppressor diode brought the drive back. Tested and works fine (Seatools long test passed without problems). it was adapter which have 21.8V without connection and when it is connected it is 18.5V. this numbers i get by measurement, but on this adapter it is Input 230V~50Hz 140mA Output 12V - 1A. Can you tell me how it is looking that diode, or how exactly i can fix it? Thank you
  4. Hello i have problem with my hdd it is seagate ST3500320AS firmware is SD15, i am using it as an external drive, and yeasterday i used wrong power supply and my drive make diferent noise, and after when i used the properly power supply then it just start working but i can not find it on bios ,windows like it is not exist. Can this procedure which you explained her working for me?? Thank you