I came home and my harddrive wasn't on. The light was off. When I plug the AC adaptor into the wall its light turns on but when flip the on switch on for the harddrive it flashes and turns both lights off.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
Scroll down to the second photo, and left-click on it. The case of the external harddrive is shown open. Inside is a 2.5 inch laptop sized harddrive. An aluminum tape strip covers the small circuit board, attached at the back of the harddrive.
The second photo down on this page, shows you the small interface circuit board, that the harddrive plugs into, with the aluminum tape removed.
(Another design has wires coming from the small circuit board, to an interface the harddrive plugs into )
It is this small circuit board that goes bad in a LaCie. QUITE common.
Simple. 1) Obtain a 3.5 inch IDE external enclosure 2) Remove the 3.5 IDE harddrive from the LaCie's case. 3) Install the harddrive out of the LaCie into the external 3.5 IDE enclosure. An example of a 3.5 IDE (PATA) external enclosure,
You could try using another USB port on your computer. Perhaps that USB port you have the IOmega external harddrive plugged into is bad.
More than likely not, though.
The problem is usually inside the IOmega's case. (External enclosure)
Inside that IOmega external harddrive's case is a regular harddrive as used in a desktop, or laptop computer. To explain;
Harddrives are physically rated in width, as well as type, and size. A laptop harddrive is 2.5 inches across in width. (2 and a half inches) A desktop harddrive is 3.5 inches.
The larger desktop harddrives are usually used in external harddrives that are 500GB, and larger. (Not always the case when it comes to the 500GB size)
Harddrives have two technologies, or types. IDE (PATA) or SATA.
You didn't state the Model Number so I can't even hazard a guess at this point.
The harddrive inside the case plugs into an Interface. The Interface may be separate, and connected via a cable to a small circuit board, or the Interface may be soldered directly to the small circuit board.
It is this Interface, and circuit board which go bad. The solution is to remove the harddrive inside, purchase an inexpensive external enclosure, and install the harddrive into it.
The external enclosure has a USB cable just like the IOmega external harddrive did.
As stated the harddrive inside is just a normal harddrive. Made by a harddrive manufacturer. Could be a Western Digital, or Seagate, or Hitachi, or Maxtor, or Fujitsu, or IBM, just to name a few. (Seagate bought out Maxtor)
On the harddrive will be a decal with it's specifications. You will also be able to physically measure the width.
This external hookup will support harddrives that are 2.5, or 3.5 inches in width, (And 5.25), plus will support both IDE (PATA) or SATA harddrives,
if your computer came with a motherboard disc the drivers could be on it click start control panel administrive tools ,computer management ,device manager look through all of your devices if you see a yellow question mark?or exclamation mark ! or red x right click to reinstall drivers or if you can see your usb but its not working ports(com&lpt)right click update driver just replace the cable of the hard disk, when you plugged the external disk drive you got that windows could recognize the USB device change the cable everything should work fine again, sometimes the wires inside the cable will be damaged due to bending or stretching or placing heavy equipment upon the cable, check the USB leads that attach to the motherboard usually red-white-green-black make sure they are securely seated and have no dust build up on them dust will cause static and a lot of unforeseen problemshope this helps
It may be the problem that occurs with a lot of USB powered devices jrherrer. Not enough power provided.
The USB cable plugged into the computer, provides signal wires for transferring information back, and forth, and also provides 5 Volts DC for power. (Two D cell flashlight batteries produce 3 Volts DC)
[ Below shows the Signal pins, and the Voltage pins of the USB B Mini style connector, (Male), used to connect to the SimpleDrive Mini external harddrive,
Pin 1 is for the 5 Volts DC Positive (Wire color - Red) Pin 2 is for the D- Signal (Wire color - White) Pin 3 is for the D+ Signal (Wire color - Green) Pin 4 is not connected. (Or sometimes joined to Pin 5 with a Resistor) Pin 5 is for the Ground (Wire color - Black)
Just added info in case you wanted to know ]
From what I see the SDM/250RW has a USB port on the side, and a DC Power Jack, used for an AC adapter, also. (Round port with a pin in the center)
From what I see stated from Hitachi, and sellers on the 'net, the AC adapter may not be provided. Many of those who provide a review state that both the USB cable, and the AC adapter is needed to provide enough power. Seems to be a power hungry external harddrive
It's a 2.5 Hitachi SATA laptop harddrive inside that external case. (The Harddrive is 2 and a half inches across in Width. Common size used for laptops)
When using an external device powered by a USB cable there are general guidelines to follow, A) The USB cable should not be more than 2 feet in length B) Connect the device directly to your computer, instead of through a hub, or other device, unless the USB hub has it's own power.
2) USB cable:
Could be a faulty USB cable, although I imagine you have tried different ones by now.
3) Interface Circuit Board:
The Hitachi SATA 2.5 harddrive inside the SImpleDrive Mini SDM/250RW, plugs into a small circuit board located inside that external case.
Components on the circuit board may be fried, or the Harddrive may have come loose from the interface.
Loose from the interface To explain; The back of the harddrive has connector pins sticking out. The interface has socket holes which the pins insert into.
Faulty circuit board The external case of the SimpleDrive Mini SDM/250RW can be carefully opened up, and the Hitachi SATA 2.5 harddrive extracted out.
Another inexpensive external case for a 2.5 SATA harddrive can be procured, and the Hitachi harddrive put in it.
first of all , you are looking at the wrong voltages. The important voltage is the DC OUTPUT, which is the voltage the external harddrives use AND the polarity of the plug attached to the harddrive end of the cable.
if both the harddrives have say 12v dc output and both have the insignia of the center conductor being + (posative) then you can interchange them. and you CAN run a 9volt unit with 12volt DC power, but not the other way around.
Look at your power adaptors again for the OUTPUT and polarity.
should be a half-circle with lines depicting the polarity(+,-) of the center and sheild connections to the hard drives printed on both the harddrives and the power adaptors . This can also be tested with a dc volt meter while the adaptors are plugged into the wall.
DO NOT try to test the AC end while plugged in!!
My solution will be multipart, and lengthy. So if you're a coffee drinker, I suggest you make yourself a fresh pot
Reasoning? I'm going to explain a little bit about the hardware makeup of an external harddrive, and multiple solutions that in the hopes of one of them, may cure your problem. I'm trying to arm you with as much information as I can, so you can use deductive reasoning, and take the best approach for You.
General symptoms that affect an external harddrive,
1.Bad USB cable. Although it is unlikely, USB cables can go bad.
2.Power supply. To solve this problem, you need another power supply just like the one you have, for a test. ( Not exactly laying around. I have a work around for that, which I will detail later)
3.Controller failed. Inside that external enclosure, (The metal, or plastic box of the external harddrive), is an ordinary harddrive such as used in a desktop, or laptop computer.
Yours has a Desktop size harddrive in it. (They measure 3 and a half inches across in width. 3.5" Laptop HD's measure 2.5")
Harddrives are IDE, or SATA. All harddrives have been going to SATA for quite some time. Yours is a SATA harddrive.
Inside the external case is an Interface, connected on a Controller Board.
Harddrives use metal round pins that are built on the harddrive itself. These in turn plug into an Interface, or also can be referred to as a Socket.
With an external harddrive, the harddrive itself may plug right into the Interface, (Socket. The metal pins of the harddrive plug into the Interface socket holes), or the Interface plugs onto the harddrive, and cables lead from it to a small PCB in the external harddrive enclosure. (Case)
The metal pins transfer data (Information) back and forth. (Signal pins) Power for the harddrive is also transmuted through these pins. Just like plugging in a lamp to a receptacle.
The Controller Board is a PCB. Printed Circuit Board. This is connected to the bottom of the harddrive. It controls the mechanism inside the harddrive.
This is a link to Howstuffworks>Computer Channel> Computer Hardware>Hard Drives and Disks>How Harddrives Work,
When you arrive at Page 5 you'll see the Controller Board. (Their term is Electronics Board) The Controller Board can be safely removed from the harddrive, and not ruin the harddrive.
You cannot open a harddrive case itself, where the Platters and Arms reside, Unless you have the proper environment. ('Clean Room'. A 99.9% dust free room that would make NASA jealous! This type of room is where a typical harddrive is assembled)
If you use an ESD wrist s-trap and connect it to a good ground source, plus work on a table, you can safely remove, and replace the Controller Board. (No magnetism Anywhere near! NO speakers!) An average ESD (Electro Static Discharge) wrist s-trap is about $6.
This link shows the connector pins I have been referring to,
(You can click on the photo to enlarge it)
At the bottom of the photo is the back of the harddrive. All the way to the right are 4 pins. These are not recommended to be used on a SATA harddrive, but are for power to the drive.
All the way to the left, is a connection which has 15 pins for the Power connector, and to the right of it are 7 pins for the Data connector. (It's in the upside down U shaped opening. There is a rectangular wide opening all the way to the left, then a narrow rectangular opening, then the upside down U shaped opening)
4.Harddrive failure. The mechanism inside the harddrive itself has failed. These are mechanical components, as you can see in the Howstuffworks link. Average lifespan for a harddrive is 5 years. Depends on how much it's used.
A.If the harddrive is still under warranty, you can see if the manufacturer will replace it. HOWEVER, they do not guarantee anything that is stored on it. You will get another harddrive minus your information.
B.You can take it to a Data Recovery Specialist. Average price is $50 per hour on up. Average time is minimum 1 hour, and usually takes 3. I could be mistaken, do research for your area.
C. 1.You could start with using another USB cable, and see if this is the problem.
No? 2.Then it's on to the power supply. This solution cures 2 possible problems. I didn't mention, that sometimes the small PCB board in the external case also goes bad. Most of the time, according to hits on the internet, this is a major problem with a LaCie external hardrive.
The small Printed Circuit Board inside their external harddrive case, (Enclosure), goes bad.
Solution is to buy an external enclosure for a 3.5" SATA harddrive. Take the harddrive out of the LaCie external enclosure, and install it in this one.
Check computer hardware websites on the internet. (Examples of two are Tigerdirect, and Newegg) Look for Harddrive Enclosure. Then 3.5, then SATA. Average price for a decent one is $20.
3.If this doesn't cure it it may be the Printed Circuit Board on the bottom of the harddrive. If your data warrants saving, then you may want to buy the SAME style of harddrive, borrow it's PCB, and get your information off of your old harddrive. More cost I grant you, but cheaper than a Recovery Specialist. You aren't buying another LaCie external harddrive, you are buying just the saqme SATA harddrive used inside.
Past this, the harddrive mechanism itself has quit. Only a very competent, reliable, Recovery Specialist can recover your data, if possible.