Elektroda.com
Elektroda.com
X

Search our partners

Find the latest content on electronic components. Datasheets.com
Elektroda.com

HP T5740 Terminal with 3.5 "drives

tos18 7596 17
This content has been translated » The original version can be found here
  • Everyone who came up with the idea of building a NAS based on the HP T5740 (T5745) terminal (thin client) sooner or later wanted to connect a 3.5 '' drive to it. Unfortunately, he was disappointed - the disc did not start. Meanwhile, 2.5 '' drives work flawlessly.

    The reason for this is that there is no 12V voltage in the Sata power connectors. Apparently the designers from HP decided that there would be no such need.

    Nothing easier, then, how to supply this 12V to the connectors ... but where from?
    In the network I once came across an article in which the author shows how he connected a 3.5 '' drive to the T5540 by taking the missing voltage directly from the power supply. Only the T5540 has a 12V power supply and the T5740 has a 19V power supply.

    Fortunately, 12V is available in our terminal. It is provided by a tiny converter based on the APW7080 chip. The system is marked U20 and is placed next to the battery supporting the BIOS settings.
    It turns out that this baby can do quite a lot datasheet . The manufacturer claims that the system can withstand up to 4A loads. In practice, above 2A it starts to heat up strongly. But it does well when short-term overloads are involved. He does not protest when you need to light a 20W halogen bulb.
    It will also handle disks that take 0.55A from the 12V line.

    This inverter was intended by HP to supply 12V for cards placed in the PCI slot, but to use this connector you need a housing extension and a "riser" adapter, thanks to which the card can be plugged horizontally (parallel to the motherboard).

    I have neither extension nor riser and I'm not going to use PCI, so I stole 12V and powered SATA connectors with it.

    HP T5740 Terminal with 3.5 "drives HP T5740 Terminal with 3.5 "drives HP T5740 Terminal with 3.5 "drives

    First:
    HP T5740 Terminal with 3.5 "drives

    and the second:
    HP T5740 Terminal with 3.5 "drives

    A little explanation should be given here. Well, normally the T5740 has only one SATA connector and a place for soldering the other. It turns out that the interface works, you only need to solder the connector and we have a working port for the second (third, if we include the 44-pin PATA connector) of the disk.

    So it only remains to find a place for two 3.5 '' bricks.
    For this purpose, I used the housing after the damaged T5740.
    The housing required removal of all protrusions and drilling of holes
    assembly ... I know, it didn't turn out nice.

    HP T5740 Terminal with 3.5 "drives

    Because the inside is tightly classic SATA cables will not fit,

    HP T5740 Terminal with 3.5 "drives

    while the angular ones have a bend in the wrong direction, so the appropriate angular adapter was created after soldering the male and female sSat connectors.

    HP T5740 Terminal with 3.5 "drives HP T5740 Terminal with 3.5 "drives

    As a result, I got a sandwich from two terminals:
    HP T5740 Terminal with 3.5 "drives

    I screwed the disks to the cover through two flat bars, on which I put an insulating spacer.
    HP T5740 Terminal with 3.5 "drives HP T5740 Terminal with 3.5 "drives

    And the whole after twisting looks like this:
    HP T5740 Terminal with 3.5 "drives

    The housing does not have a lower plastic cover and stands on rather thick legs to ensure better air circulation. The drives are not working all the time - they are turned on on demand and turned off after 10 minutes of non-use. After these modifications, the CPU keeps its temperature within 37 ° C when not doing anything special (apache, samba, openvpn etc) and 50 ° C under full load.
    The whole thing was slackware 14.1 stuffed on a 4GB IDE flash drive.

    This description was created on the occasion of switching off the "server" after over 100 days of continuous operation, so I did not include some details. The purpose of the shutdown was to replace one of the drives with SSDs and give up a tight flash.

    Costs:
    -About PLN 100 were Sat cables, connectors and similar details
    -about PLN 60 apacer ide 44pin 4GB flash drive (originally there was 1GB in the terminal)
    -terminals and recovery discs.


    What's next?
    - using the holes in the front panel of the upper part of the sandwich - inserting a USB hub.
    - further learning how to use slackware ... and it's not simple.

    Any suggestions and pointing out bugs are welcome.

    But I wrote it down.

    Cool! Ranking DIY
    Can you write similar article? Send message to me and you will get SD card 64GB.
    About Author
    tos18
    Level 39  
    Offline 
    tos18 wrote 3980 posts with rating 561, helped 615 times. Live in city Jarosław. Been with us since 2004 year.
  • #2
    smiland
    Level 15  
    Take care that the cables do not touch the sharp edges, preferably remove all sharp edges with a file and carefully clean the housing from filings.
  • #3
    Freddy
    Level 43  
    What is this yellow wire doing?
    You bought the connectors a bit expensive, they cost me PLN 12 in total on aliexpress.
    HP T5740 Terminal with 3.5 "drives HP T5740 Terminal with 3.5 "drives

    What system did you use? FreeNAS or OVM?
  • #4
    tos18
    Level 39  
    Freddy wrote:
    What is this yellow wire doing?

    tos18 wrote:
    I stole 12V and powered it with SATA connectors.


    Freddy wrote:
    You bought the connectors a bit expensive

    I bought from us on alledrogo.

    Freddy wrote:
    What system did you use? FreeNAS or OVM?
    tos18 wrote:
    The whole thing was slackware 14.1 stuffed on a 4GB IDE flash drive.

    Samba is responsible for providing disk space.

    smiland wrote:
    Make sure the cables do not touch any sharp edges

    It does not look nice but the edges are blunt with a file - I did it for myself (not to cut myself). While it doesn't look like the cables are safe.
  • #5
    Freddy
    Level 43  
    @ tos18 Well yes - that's it - sorry - I read the details as you already answered :)
    Have you tried other NAS solutions?
    tos18 wrote:
    In the network I once came across an article in which the author shows how he attached a 3.5 '' drive to the T5540 by downloading the missing voltage directly from the power supply
    They are also on our forum articles :)

    I gave FreeNAS on my T5740, which easily fit into the 1G IDE Flash. It's even fun.
  • #6
    tos18
    Level 39  
    The choice of the system is not accidental.
    The file server is just one of its features. For home NAS, of course
    Dedicated systems are better but I needed something more universal, including a C ++ compiler.
  • #7
    Freddy
    Level 43  
    Thanks for the clarification. I can see that you have made up of two casing, in my case it fit into one, thanks to the 2.5 "disk.
  • #8
    tos18
    Level 39  
    The purpose of the operation was to connect 3.5 '' drives because I had them.
  • #9
    Freddy
    Level 43  
    I just have a question about the SATA socket for printing - also bought on Allegro or recovered?
  • #10
    tos18
    Level 39  
    With Allegro for PLN 10 art - a year ago
  • #11
    Freddy
    Level 43  
    tos18 wrote:
    With Allegro for PLN 10 art - a year ago
    Thank you.
    Now it is for PLN 8 + PLN 8 shipping. It is enough to desolder from the old Lenovo R61 board :)
  • #12
    tos18
    Level 39  
    If you have a parts donor, it is cheaper. I put my sat on the damaged terminal out of the way. Apparently it went well, but after soldering into the target board, the contact was unreliable and transmission errors began. The wasted time was worth more than PLN 10
  • #13
    Freddy
    Level 43  
    Well, yes, but I have something to desolder. I have professional equipment for this.
  • #14
    ghajduk
    Level 11  
    Freddy wrote:
    @ tos18 They are also on our forum articles :)


    This article is useless in the context of 3.5-inch drives that need 12V.
    Thanks to the author of the thread, I soldered the cable and got rid of the external power supply for my disk.

    Please provide a link to the auction where you can buy a Sata connector for soldering to the board?
    Thanks in advance
    greetings
  • #15
    tos18
    Level 39  
    I looked at the current offers and there are no sata slots and the user from whom I was buying has a suspended account.
    They are sata 7 + 15pin 180 ° sockets
    I suggest Ebay, alliexpress, or thrown out (friendly laptop service can help)
  • #16
    comandos21
    Level 18  
    Pany, Someone tried to install windows xp on this model? This yellow wire is soldered to what?
  • #17
    szy_mat
    Level 15  
    What is the audio cable shown in the photo going for? For information, this Apacera board plugged into a laptop PATA port contains the original Windows CE, you can safely remove it.
  • #18
    tos18
    Level 39  
    comandos21 wrote:
    Someone tried to install Windows XP on this model?

    I know that it works - a friend had a twin copy.

    comandos21 wrote:
    This yellow wire is soldered to what?

    Up to the three extreme pins of SATA connectors and the area under the sticker where + 12V is available
    tos18 wrote:
    i'm not going to use pci so i stole 12v and fed it to the sata connectors.


    szy_mat wrote:
    What is the audio cable shown in the photo going for?

    To the audio amplifier.
    szy_mat wrote:
    So informally, this Apacera board plugged into a laptop PATA port contains the original Windows CE,

    Not in my case
    tos18 wrote:
    The whole thing was slackware 14.1 stuffed on a 4GB IDE flash drive.