Question about Toshiba (MK4004GAH) 40 GB Hard Drive

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I need to know the exact pin numbers to power on a toshiba mk4004gah

I just recently got this hard drive from a friend for free and he didn't know if it worked or not so basically I need to know the pin numbers that power on the drive to see if it works or not I've done a massive google search and come up with barely anything. I don't want to waste money on a usb enclosure for such an uncommon drive is the reason I'm trying to do it this way i know it's power rating is dc 3.3v 500ma and i do have an adjustable power supply that will do it. Any help is appreciated although I don't think anybody will find anything more than I did.

Thanks in advance

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  • 2 more comments 
  • dankajell Oct 28, 2008

    yes i just want to see if it works or not I'm not about to spend money on something that's trash.

  • dankajell Oct 28, 2008

    no i just want to hear the motor spin up correctly then shut it down, before i spend money on this size drive, and get the usb enclosure for it.

    Thanks for your help

  • A Womans Computer Man
    A Womans Computer Man May 11, 2010 is an interesting can power it up, but without the interface cable, there is little chance of it doing much..

  • A Womans Computer Man
    A Womans Computer Man May 11, 2010

    so, you are asking for the dc connector pin out?



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If it's a SATA drive, the power connector is the longer one. Pins 1-3 are 3.3v Pins 4-6 and 10-12 are common, Pins 7-9 are 5v, and Pins 12-15 are 12v. If its a IDE drive, the power connection uses a molex connector. Yellow (pin 1) is 12v, Red (pin4) is 5v, Black (pins 2,3) are Ground (common).

Posted on Apr 19, 2017


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SOURCE: Need to format harddrive on Toshiba Satellite Pro 4300

here are a couple of links so ya can get a handle on things.... Just follow the instructions ya be all good....

Posted on Aug 17, 2007

  • 1 Answer

SOURCE: Portable Hard Drive will not respond / install

how many wattage had your computer? you need to upgrade your power need also to check your bios setup on usb port

Posted on Oct 03, 2008

  • 466 Answers

SOURCE: I have a Toshiba HDD2190 C DC +5V 0.7A 40 GB

In general, you need to install the correct drivers for the enclosure, not for the hard disk. Seeing as you have XP Pro, this is probably unnecessary though.

Also, 0.7A is 700 mA, and this exceeds the USB port maximum current which is 500 mA.

Most (not all!) laptop drives will run even if under a slight undercurrent, but this depends on USB port electronics and enclosure electronics.

Chances are that you won't be able to run the disk unless you plug it into an externally powered USB hub supplying at least 750 mA per port. The 100-500 mA supplied by your PC's USB port is enough to power the enclosure electronics and the host controller, but not enough to get the HD to spin properly. As a result, the HD can not be initialised and the enclosure will report an error.

Some hard disk enclosures come with a "USB Y Cable" or "double power cable" which joins two USB ports to get double the current, and can support HD up to 1.0A. If your enclosure comes with one of them, try that first.

Posted on Nov 02, 2009

  • 236 Answers

SOURCE: External Hard Drive stopped working

u might have to format it in safe mode or buy a new one, if you try it on some one elses comp. and it works it ur comp. but it is most of the time a software issue

Posted on May 08, 2010

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