Question about Hitachi SimpleDrive Mini 250GB USB 20 Portable External SDM250RW (Red Wine) 250 GB Hard Drive

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Can't get computer to recognize my hitachi 250 simple drive

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If it is new you may have to format it.Go to may computer right click hit format. If it contains your files etc do not do it as it will erase everything.

Posted on Nov 27, 2013

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Posted on Jan 02, 2017

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joecoolvette
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SOURCE: I have several computers at

1) Power:

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)

http://en.wikipedia.org/wiki/USB

[ 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)

http://www.hitachigst.com/tech/techlib.nsf/techdocs/0C876B7AB91B23988825773F006BEA02/$file/SD_Mini_DS_final.pdf


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.

Example of a 2.5 SATA external enclosure,

http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=3743049&CatId=2781

Posted on Nov 22, 2010

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1 Answer

The computer won't recognize the simple 250 with just the USB plugs


It doesn't require a power supply You may need to install a mass storage driver. What operating system are you using? Vista? XP? Win7? Win8? 32 bit? 64 bit? Was the drive used on a Mac? Are you on a PC right now with it?

Nov 27, 2013 | Hitachi SimpleDrive Mini 250GB USB 20...

1 Answer

Hitachi SimpleDrive Mini-red wine USB 2.0 Portable Drive - 250GB SDM/250RW This external drive is not recognized by my pc- i'm running windows XP but have tried it on a Vista too, and also beeps once...


If you have tried it on two PCs with the same result, the hard drive is most likely defective. If so, the computer may recognize it being plugged in with a beep but will not recognize it at all as an accessible device.

One thing you can check is if the hard drive was never initialized, meaning that there is empty space but the empty space isn't configured for the operating system to recognize and use. To do this:

- Go to "Start" and "Run" and type in "diskmgmt.msc" and hit "Enter".
- A list will pop-up listing all hard drives on computer. Each row is a physical hard drive.
- The main hard drive for your computer should be listed as "Disk 0" and the local disk in it should be "C:".
- Assuming you have no other hard drive besides the external, the next row should be "Disk 1" and say "Unallocated", which means the hard drive was never initialized. In this case, right-click on it and select "Format". Click next through everything and the external HDD will be formatted so that Windows can recognize it.
- MAKE SURE NOT TO FORMAT LOCAL DISK C:!
- After that, the external HDD should be recognized fine and pull up in "My Computer".

Otherwise, if no other hard drive is listed, the external HDD is most likely defective and you will need to purchase a new one.

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When i connected my 250gb hitachi hard drive my laptop don't recognize it


Hello macklinalfre, Do the following to have the "External Hard Drive" recognized. "To install, and Update Hardware, click to open "Computer" from the "Desktop", check to see if there is a DVD-RW Drive (D :), for external different (E or F:).
I. Look in the "Device with Removable Storage area," see if the device is present, if so? Do the following: to "setup" the ('player') for "Installation."
II. Right click on (DVD) "Media Player" select ("Install") follow all instructions thereafter.
III. If the area is (Blank?), "go to," and 'click' on the "Start button" click all "Programs" scroll for a "Media Disk Player", open, and do the ("same as above") for the installation. *Note: "Do the same for "Setup" (above) "Install."
"I hope this information is helpful? Thanks for using FixYa, paul7of9"

Feb 05, 2011 | Hitachi SimpleDrive Mini 250GB USB 20...

1 Answer

My computer is not recognize my external hard drive


sometimes wires get loose and do not make good conection make sure wires are making good contact to your hard drive. and to motherboard . first. and as always unplug pc first.

Jan 01, 2011 | Hitachi SDM/250RW 250 GB USB 2.0 Hard...

1 Answer

I bought a hitachi external hard drive for mac, 250 g. when i first used it it took a long time for it to be recognized. On pc it works fine, but on my mac it won't get recognized anymore. (the hard drive...


Your problem could be any one of these issues:


1. Faulty USB port on PC: Try a different computer or laptop

2. Faulty USB cable: Try a different Cable

3. Corrupt memory: Fix by an expert required such as www.SaveMyUSB.com

4. Faulty connections on main circuit inside the hard drive: Physical Fix by an expert required such as www.SaveMyUSB.com

5. Faulty controller chip (worst case scenario) : Direct flash memory read required by an expert required such as www.SaveMyUSB.com


Hope this helps and that it is 1 or 2 as 3, 4 and 5 will cost you money.

Good luck!

Jan 01, 2011 | Hitachi SimpleDrive Mini 250GB USB 20...

1 Answer

Device is not recognized


Probably not the right answer for your problem. Mine is an external 1 TB Simple Drive. Mine wouldn't respond at all. I unplugged the power cable from the back of the hard drive and replugged it in and instantly it worked. I had tried rebooting the computer, plugging/unplugging over and over into the computer and that didn't work.

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I have that problem similiar to yours. My simple tech stopped working for like two years so i decided to open up my simple tech and removed my HD away from the old enclosure so I can try building my own external hard drive for the first time. I bought another new 3.5 enclosure, IDE/ATA for the old HD. I put it in the new enclosure and it worked!

It's the only solution you can have. No need to retrieve data or re-format your HD. You can leave it the way you like...if you wanna reformat it...up to you.

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check cables attach... if still not working.. your hitachi may have been damage because your computer can't recognized it.

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what do you mean by saying freeze up
pls give a clear discription

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