22 drives wont spin up after MB/Chasis short :/ need advise

[Jamesg]

Measure the resistances of these components:

seagate_TVS.JPG

hi, to be clear, these measurements are from a 2nd damaged seagate drive that is untouched thus far. (meaning it is NOT the seagate drive that had its 5v TV diode removed and the resistors soldiered over):

when i touch a 5v sata power plug point, and then touch the side of the resistor closest to the 5v power plug point i get .2 if i then touch the far side of the same resistor i get 0 (the meter may jump up to a high number briefly then go back down to zero) if i then touch one side of the 5v TV diode i get zero and same 0 for the other side of the 5v TVs diode.

for the 12v sata power point, i get .2 on both sides of its resistor and then .2 on one side of the 12v TVs, but 0 on the other side of the same TVs.

All of these measurements are being done with the PCB OFF of the drive (unattached). maybe a dumb point as its hard to read these points with PCB attached to drive, but i wanted to be clear.

thanks!

[fzabkar]

Once again, the 5V TVS diode appears shorted, and the associated resistors are open. Now measure the resistances between each coil (2 x 1R0, 3R3, and 6R8) and ground (any screw hole).

[Jamesg]

can anyone suggest a good PCB swap and FW transfer shop , preferably in the US? Ive been told by otehrs to avoid donordrives , and have read mixed recent reviews on onepcbsolution.com (hdd-parts.com)

thanks

[ShaneWard]

Thanks again for the replies, I finally was able to sleep for about 12 hours after 3 days of no sleep. I will now take the requested measurements and report back.

here are 2 answers for now:

1) the power supply that caused this issue in the first place has been removed and placed in the trash from the first moment i realized my first drive was not spinning up (several days ago)- so these 22 bad drives were only exposed to that bad PSU the one or 2 times that actually caused this issue.

2) The power supply ive been using since the beginning is/are 2, external power supplies that have a molex and sata power head ONLY (the type that plug into the wall and come with the IDE/SATA to USB adaptors you buy) I know both of these HD power supplies are good as they work fine on other working drives i have. (i also used one of these at the electronics firm yesterday when they removed the diode and skipped the resistors)


Ive also finally figured out WHY this all happened. On the TYAN motherboard i was transfering from a large desktop case to my new supermicro 3U 16-hotswap bay chassis, there is a 4 pin "floppy drive power" style connector labled "Aux Power" For years, in the old chassis and on the old power supply i had this connector connected to one of the 4pin connectors coming from my old power supply and there were NO issues (for years). For whatever reason, when i moved this tyan motherboard to my new chassis and thus its new power supply i again attached this connector to the super micro's power supply (at my last step of moving) - that caused this entire issue! (see the attached picture). Had i not made this connection, i would not have 22 dead drives. I dont know why this was not an issue on the old PSU, but was on the new PSU. I assumed this connector was used to provide additional power to the IPMI card or maybe PCI-E cards, but infact it doesnt take in power, it PUT OUT POWER, so it should never be connected to a PSU. I dont know why it was not an issue when connected to my old PSU, but for years it was not.

Cause of SHORT.png

(SEE ATTACHED IMAGE PLS)
thanks

One thing I might want to add is that it could have been possible that you connected the 4 pin floppy connector the wrong way round on the mainboard, and it connected the 12v to the 5V and send that current to your drives easily done if just rammed on it.

You might want to be careful about powering up the fixed boards before attaching them to the drives. The preamp might be okay, but if there is other problems with the board it would kill it. Perhaps see if you can get a replacement PCB board, change the Firmware chip and see if it works. If it does not, the Preamp could be fried. I get the feeling the over voltage might have damaged a lot of Smooth controllers on the Seagate drive and seeing the other WD drives and stuff, this is what happened. I don't know if the pre-amps could have survived.

I feel sorry for your problem, I wish you all the best... 22 drives, damn!!!

Shane

[porthas]

I am sorry that you found some discouraging info about our company. I can assure you that the issues expressed on this forum have long been solved and we will no longer charge for an adaptation fee if there is an additional failure found. Here are some eBay feedbacks to read about our services. There is 1 negative feedback for International client who didn't understand that shipping overseas isn't included in $60 service, but still got his drive fully repaired.
http://www.feedbackselector.com/feedsea ... &pageNum=1
http://www.feedbackselector.com/feedsea ... &pageNum=1

As you probably know, the eBay feedbacks are unbiased, unlike some other places where your competitors may leave a negative review which is impossible to remove.

[fzabkar]

See this thread:
viewtopic.php?t=25524&start=20

You might like to read this as well:

Pirated SalvationDATA Tools Providers Are Revealed Here:
http://www.salvationdata.com/news/20110219.htm

Donor Drives LLC
Tool: Hard Drive Platter Swap, Removal, Exchange Tool for 3.5" and 2.5"
Item SKU: T3
Website: http://www.donordrives.com/professional ... d-2-5.html
Tel: 1.800.733.0978
Address:261 Alpha Park,Cleveland, OH 44143, United States

Above three channels are both selling fake HD HPE PRO to customers, please watch them!

[porthas]

Yeah read that topic and last message from the client.

Received my hard drive back yesterday.

@porthas, Thanks for the explanation regarding the e-mail templates and for personally looking into my case!
I understand that there are cases where just swapping the defective PCB isn't sufficient due to other defective components. I took my chances and I was unlucky (or actually my parents are). The good thing about this all is that they now really understand the importance of backing up their data, so I don't think this will happen to them again.

Frank

[fzabkar]

Yeah read that topic and last message from the client.

Received my hard drive back yesterday.

@porthas, Thanks for the explanation regarding the e-mail templates and for personally looking into my case!
I understand that there are cases where just swapping the defective PCB isn't sufficient due to other defective components. I took my chances and I was unlucky (or actually my parents are). The good thing about this all is that they now really understand the importance of backing up their data, so I don't think this will happen to them again.

Frank

I'll leave it up to others to accept your "email template" excuse.

[porthas]

fzabkar, so do leave it up to others. You reposted that topic like 50 times already wherever you could. That topic is from early 2013 and the client is happy in the end of the day. So are thousands of others. Your hostility towards us and other data recovery companies is unreasonable. You never were a client, and you aren't even in the industry. Go about your business..

[fzabkar]

fzabkar, so do leave it up to others. You reposted that topic like 50 times already wherever you could. That topic is from early 2013 and the client is happy in the end of the day. So are thousands of others.

The client in this case is in no position to know whether he should be happy or not. What you actually did to his drive and what you claimed you did to his drive are two very different things, as your own statements attest. An "email template" excuse doesn't cut it with me.

[porthas]

That doesn't cut with you, and you only. You are continuously whining about his experience and the way we responded to him, although he is OK. If our email template back then was deceiving, that long has been fixed, and if it wasn't - you would still see similar posts.

[fzabkar]

The client shipped his drive to you from Europe, no doubt at considerable expense. When you received it, you didn't bother to give him the courtesy of a proper diagnosis. Instead you just gave him an "email template".

[porthas]

fzabkar, I think you forgot what the issue was. We did CORRECT diagnostics. His PCB was BAD and there was BAD preamp. What we did wrong was use wrong word in email and instead of bad preamp we said its head crash, which essentially doesn't make any difference because procedure to recover data is almost identical. 95% of clients don't even recognize the difference between 2 failures and in the end of the day it makes NO DIFFERENCE. But to be specific enough we did change emails to be more specific about bad preamp and differentiate it from head crash. Please re-read that topic..

[ShaneWard]

Dead heads or pre-amp, whats the difference? the whole arm assembly would need to be replaced.

[porthas]

Dead heads or pre-amp, whats the difference? the whole arm assembly would need to be replaced.

That's my point

[fzabkar]

The evidence is there. People can come to their own conclusions.

[porthas]

Then don't get in between