July 31st, 2012, 15:32
July 31st, 2012, 16:50
August 1st, 2012, 3:51
mrdiode wrote: instead, at boot, drive spins up, then proceeds to seek 11 times (and fail) then spin down.
mrdiode wrote:Put PCB back onto drive and plug in.. now there is no spin up at all.
August 1st, 2012, 8:11
mrdiode wrote:Not even a year old yet. 3TB Seagate Expansion that had been removed from enclosure and used internally. Had some good storms come through on Saturday, a couple of power surges, decided to shut down the desktop after the 2nd one. Bring it back up and the 3TB isn't listed. Hear a strange beeping sound (not the Seagate Chirp or Click of Doom). Long story short, put the drive back in its enclosure after cleaning all the contacts on the PCB and it eventually fired up again. Immediately began an online backup - unfortunately, the most important piece on this drive was a 186GB VM image.
....
Start reading up on TVS as I am almost certain it is a PCB problem related to the surge that caused the initial issue. Ohms return 1 (not 1.0.. just 1 infinite at all measurable volumes) one way and -1.0 the other on the 12V and what I suspect is 5V returns 1/infinite 1 way and -1.0 the other. Though when I switch multimeter to 2000K the 5V shows 1158 instead of 1/infinite.. probably interference.
---
Checked the Ohms on all the SATA power lines, no problems there. Remove PCB from drive entirely and power to it again just to make sure I had good contact. This time, when i go to measure Ohms on 12V TVS I get a quick spark and shut down. I check PCB for damage, don't see anything new, plug back in - no problems from power supply. Put PCB back onto drive and plug in.. now there is no spin up at all.
mrdiode wrote:Is it the PCB or something else entirely? Was the drive seeking and failing indicative of a mechanical problem after all? I can't find this PCB available ANYWHERE (probably because drive is sold as external and OEM only)..
mrdiode wrote:Wondering what to do at this point. Please advise. That VMWare image is about 20 years worth of data..
August 1st, 2012, 9:47
northwind wrote:Thismrdiode wrote: instead, at boot, drive spins up, then proceeds to seek 11 times (and fail) then spin down.
indicates there is some mechanical problem with your drive.
Thismrdiode wrote:Put PCB back onto drive and plug in.. now there is no spin up at all.
indicates there is some electrical problem with your drive as well.
To me, surge has caused damage to heads/preamp AND pcb went bad as well so it doesn't look good.
I suggest you consult a pro for this, if my assumption is right then it is definitely not DIY (esp. for these drives). Sorry.
If you want we can suggest valuable members from your area who can help you.
August 1st, 2012, 9:51
BlackST wrote:mrdiode wrote:Not even a year old yet. 3TB Seagate Expansion that had been removed from enclosure and used internally. Had some good storms come through on Saturday, a couple of power surges, decided to shut down the desktop after the 2nd one. Bring it back up and the 3TB isn't listed. Hear a strange beeping sound (not the Seagate Chirp or Click of Doom). Long story short, put the drive back in its enclosure after cleaning all the contacts on the PCB and it eventually fired up again. Immediately began an online backup - unfortunately, the most important piece on this drive was a 186GB VM image.
....
Start reading up on TVS as I am almost certain it is a PCB problem related to the surge that caused the initial issue. Ohms return 1 (not 1.0.. just 1 infinite at all measurable volumes) one way and -1.0 the other on the 12V and what I suspect is 5V returns 1/infinite 1 way and -1.0 the other. Though when I switch multimeter to 2000K the 5V shows 1158 instead of 1/infinite.. probably interference.
---
Checked the Ohms on all the SATA power lines, no problems there. Remove PCB from drive entirely and power to it again just to make sure I had good contact. This time, when i go to measure Ohms on 12V TVS I get a quick spark and shut down. I check PCB for damage, don't see anything new, plug back in - no problems from power supply. Put PCB back onto drive and plug in.. now there is no spin up at all.
No comment.mrdiode wrote:Is it the PCB or something else entirely? Was the drive seeking and failing indicative of a mechanical problem after all? I can't find this PCB available ANYWHERE (probably because drive is sold as external and OEM only)..
How many dozens do you want? Complete drive or PCB, mint or used... Unfortunately the price is NOT cheap.mrdiode wrote:Wondering what to do at this point. Please advise. That VMWare image is about 20 years worth of data..
And DIY is still an option ?
August 1st, 2012, 10:12
August 1st, 2012, 12:42
September 14th, 2012, 23:47
September 15th, 2012, 6:46
warpspeed wrote:Put it in a waterproof or ziploc bag and throw it into the freezer over night.After you get it out plug it in and use it.Should be good for atleast one read.See if that helps.
September 15th, 2012, 7:41
warpspeed wrote:Put it in a waterproof or ziploc bag and throw it into the freezer over night.After you get it out plug it in and use it.Should be good for atleast one read.See if that helps.
September 15th, 2012, 7:51
warpspeed wrote:Put it in a waterproof or ziploc bag and throw it into the freezer over night.After you get it out plug it in and use it.Should be good for atleast one read.See if that helps.
September 15th, 2012, 7:52
September 15th, 2012, 8:20
warpspeed wrote:throw it into the freezer over night.
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