Dell Dimension 8400 Power Supply and Case help

Desktop

Desktop
Desktop computer Forums (Audio, General Hardware, Video)

Dell Dimension 8400 Power Supply and Case help

This question has suggested answer(s)

Hi, I'm new to these forums and I was wondering if I would be able to replace my dell dimension 8400 with a new case and power supply. My dimension 8400 seems to be a little different from some other people's. My 8400 came with a 160gb hard drive and 1gb of ram. I was wondering if I could replace the case and power supply.

With this power supply: http://www.newegg.com/Product/Product.aspx?Item=N82E16817103941

And this case: http://www.newegg.com/Product/Product.aspx?Item=N82E16811129021

All help is appreciated.

All Replies
  • Dell motherboards are designed to only fit Dell cases and and as such unless you are willing to hackup a new case they will not work in anthing but another Dell 8400 case.

    The power supply on the other hand can be replaced with any standard ATX supply with a 24 or 20+4 main power plug. Now that  supply will not work in the 8400 as it has a power switch and there is no opening on the back of the 8400 case to make room for the switch. You would have to cut out the back of the case to use it.

     HomeBuilt SandyBridge P8P67 i7 2600k @ 4.5 ghz 8gigs GSkill Ripjaws. Corsair 800D Case and AX1200 Ps X-Fi Titanium Fatal1ty pro PCIe Sound Card
    Dell Studio XPS 1645  Window 7 Pro

    Forum member since 2003

  • Thanks for the help. Do you have any suggestions for a motherboard that I could get to replace the current default one I have in my 8400?

  • Dell 8400. not to sound sarcastic but Dell systems with the exception of the XPS 630 and 730 are propriatry and the motherboards and cases are designed to work together. Again any non dell board would require hacking up your 8400 case not to mention the night mare one would have trying to interface the front I/O connections to the board.

     HomeBuilt SandyBridge P8P67 i7 2600k @ 4.5 ghz 8gigs GSkill Ripjaws. Corsair 800D Case and AX1200 Ps X-Fi Titanium Fatal1ty pro PCIe Sound Card
    Dell Studio XPS 1645  Window 7 Pro

    Forum member since 2003

  • What I was planning on doing was getting a new case motherboard and maybe power supply. If I replaced those things would I be able to assemble it?

  • Not entirely sure I follow what you are thinking but to me it sounds like you are looking build your own system? If that is the case there is not much really that would be benifical to use in a new system. 

    As to whether you can assemble one that would depend on how comfortable you are working on computers.

     HomeBuilt SandyBridge P8P67 i7 2600k @ 4.5 ghz 8gigs GSkill Ripjaws. Corsair 800D Case and AX1200 Ps X-Fi Titanium Fatal1ty pro PCIe Sound Card
    Dell Studio XPS 1645  Window 7 Pro

    Forum member since 2003

  • heyushoosh

    What I was planning on doing was getting a new case motherboard and maybe power supply. If I replaced those things would I be able to assemble it?

    Hello,

    You are talking of buying all new parts and building a new system, and not trying to upgrade your Dell?

    If so, yes. Most people can put together a working computer from parts that work together. Yes

    If you still think that you can use your Dell motherboard or case. No No

    Mis Dos Centavos,
    Darrell

    Gadfly at large

    Helping Dell Customers here since 1998

    My systems ...
    Dimension XPS D266 - Now retired
    Toshiba Tecra M1
    Dimension 4300 - Received DOA as a gift. Reinstalled XP and still working great
    Dimension 9150 - Pent D 3.2GHz, 4GB dual-channel 533 DDR2 Windows 7 Pro, Firefox 3.6.14
      Congrats to Jimmie Johnson #48 - FIVE time Nascar Sprint Cup Champ !!!!  

     

  • I had the dreaded blinking amber flashing light which indicated a failed power supply. I ordered a refurbished power supply from Dell, replaced it and the machine powers on and functions well. My problem now is the loud fan noise. The fan’s sound is louder than usually, but is not going fast or out-of-control, as others have indicated. Should I be concerned and mail the power supply back to Dell?

  • Perhaps Dell used a different, noiser fan when they refurbished the unit? You might be able to replace it with something quieter. (Newegg is a great source for fans.)

    You may be able to use a generic power supply like I did with my 4550. The only caveat was that the power supply had to be without a rear power switch. (There is no opening on the back of the chassis.)

  • heyushoosh

    What I was planning on doing was getting a new case motherboard and maybe power supply. If I replaced those things would I be able to assemble it?

    Yes, you could. That's what I did with a Dimension 4550 after it was kicked over and the mainboard damaged. Be aware that mainboards for your CPU are now scarce. (I could find just one on Newegg.)

  • The Skydive chassis is not standard.

    You can hack a hole in the rear of the case so that you can use a standard power supply like and Antec True powerII 550W or

    Antec True Power Trio 650W.

     

    On the Left the HackJob  on the Right the original.

    Hackjob by speedstep using right angle tin snips  45 seconds.

    Using Kronus Nibbler tool  .. 15 minutes.

    Generally I use the tin snips now as I dont care if anyone thinks its an ugly hole.

    Left side is Antec True Power Right Side is original Dell.

    The right angle Tin snips are $30 and the Nibber Tool is usually $12.

    Radio Shack Still carries the Kronus Nibbler tools.

    http://www.radioshack.com/product/index.jsp?productId=2062765&cp

    http://shopping.msn.com/specs/shp/?itemId=133811899

    Kronus Nibbling Tool

    Model: 64-2960 Catalog #: 64-2960  

    http://www.radioshack.com/product/index.jsp?productId=2289712

    GO! MOD Nibbler 29524 Metal Cutting Tool 
     
    Model: 29524
    Catalog #: 55010716

    https://www.ductcleanersupply.com/shop/index.php?main_page=product_info&products_id=74

    These snips have a 90 degree, right angle for getting into tight places. Green Handles cut straight and to the right.

     

     

    Report Unresolved Customer Service Issues here:

    Dell - Unresolved Customer Service Issues

    I do not work for Dell. I too am a user.

    The forum is primarily user to user, with Dell employees moderating.

  • SpeedStep

    The Skydive chassis is not standard.

    You can hack a hole in the rear of the case so that you can use a standard power supply like and Antec True powerII 550W or

    Antec True Power Trio 650W.

     

    On the Left the HackJob  on the Right the original.

    Hackjob by speedstep using right angle tin snips  45 seconds.

    Using Kronus Nibbler tool  .. 15 minutes.

    Generally I use the tin snips now as I dont care if anyone thinks its an ugly hole.

    Left side is Antec True Power Right Side is original Dell.

    The right angle Tin snips are $30 and the Nibber Tool is usually $12.

    Radio Shack Still carries the Kronus Nibbler tools.

    http://www.radioshack.com/product/index.jsp?productId=2062765&cp

    http://shopping.msn.com/specs/shp/?itemId=133811899

    Kronus Nibbling Tool

    Model: 64-2960 Catalog #: 64-2960  

    http://www.radioshack.com/product/index.jsp?productId=2289712

    GO! MOD Nibbler 29524 Metal Cutting Tool 
     
    Model: 29524
    Catalog #: 55010716

    https://www.ductcleanersupply.com/shop/index.php?main_page=product_info&products_id=74

    These snips have a 90 degree, right angle for getting into tight places. Green Handles cut straight and to the right.

     

     

     

    There are third-party power supplies available for Dells that will fit an unmodified case.

  • buffedmikey

    I had the dreaded blinking amber flashing light which indicated a failed power supply. I ordered a refurbished power supply from Dell, replaced it and the machine powers on and functions well. My problem now is the loud fan noise. The fan’s sound is louder than usually, but is not going fast or out-of-control, as others have indicated. Should I be concerned and mail the power supply back to Dell?

    It might be less trouble to buy a third-party power supply designed to fit your Dell. I found some via Google search, including a nice 500-watt unit, but I don't want to link to them out of concern for violating the forum rules.

     

  • rdunnill

    buffedmikey

    I had the dreaded blinking amber flashing light which indicated a failed power supply. I ordered a refurbished power supply from Dell, replaced it and the machine powers on and functions well. My problem now is the loud fan noise. The fan’s sound is louder than usually, but is not going fast or out-of-control, as others have indicated. Should I be concerned and mail the power supply back to Dell?

    It might be less trouble to buy a third-party power supply designed to fit your Dell. I found some via Google search, including a nice 500-watt unit, but I don't want to link to them out of concern for violating the forum rules.

     

    You will not violate the TOS by posting links to3rd party  hardware vendors sites. We do it all the time.

     

     HomeBuilt SandyBridge P8P67 i7 2600k @ 4.5 ghz 8gigs GSkill Ripjaws. Corsair 800D Case and AX1200 Ps X-Fi Titanium Fatal1ty pro PCIe Sound Card
    Dell Studio XPS 1645  Window 7 Pro

    Forum member since 2003