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  Dell Dem. 4450 Modding 
 Date Written 
Candy Sky Jun 30, 2005, 04:04pm EDT Report Abuse
Dell Dem. 4450

Well, I have been modding this case, I bought a new case, since the Dell case design is really horrible. The Motherboard is Micro-ATX compatible, even i am sure for ATX PSU. Anyways, heres the information.

I puchased this new case,DYNAPOWER BIEN Black/Silver Computer Case (

its nice case indeed, pretty good deal.. 430W PSU, but i dont dare to use it until i know if its safe to use it but right now, i am using Dell PSU.

I installed everything into the new case, transferred everything to the new case which FIT in perfectly, even using the Dell psu as a caution for now. I finally got it to work well,started it up with NO problem! but theres a few minor problems.. I cannot figure how to port the audio cords into the audio connector, its one strip of 9 pins i believe. I looked at the old Dell cord, identical but whats about the 4 cords that didnt match the colors of the dell? I got 4 cords identified but rest 4 cords, no clue..

AND about the USB cords, arent they supposed to go in front panel connector? Funny, I put the speaker, resert pw cords into that connector and it works. so, Yeah, i have 8 USB cords, unsure where to connect them.

Right now those cords i spoke of, are not inserted due to confusion.

ANY ideas? I would appreciate the help!

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Phil Jul 03, 2005, 11:10am EDT Report Abuse
>> Re: Dell Dem. 4450 Modding
I'll put this as simple as possible, a Dell motherboard is designed around the Dell case, front panel connectors are completely different, same applies for USB front connectors, Dells motherboards are and cords are grounded by simple wires, so when u come to fit a new case there are now spaces for the ground connectors.

simple solution?? buy new mobo!

I'm speakin from experience...but there will be one or two geniuses aut there who might know a way round it.

AMD64 X2 6000+
2x1GB 667 DDR2
Thermaltake 600watt PSU
2x250GB Raid
160GB External for Media
Sapphire ATI Radeon HD 3870 512MB
2 x 17" Dell TFT
Vista / XP Pro
SiB Jul 05, 2005, 08:23pm EDT Report Abuse
>> Re: Dell Dem. 4450 Modding
Is it possible to know what mobo it is, you can check using free software such as AIDA32 and Everest.
This could help people witha similar board so they can help you, i'might be even able to help. One more thing post pictures of where you got the problem could help to like the cable and the 9pins. But the mobo model and name would be a good help. So people can help back

SiB Jul 05, 2005, 08:29pm EDT Report Abuse
>> Re: Dell Dem. 4450 Modding
The 8 pins should be square shaped. Is there anything written on them on any sides of it like GND, +5.

I can explain a bit, the 8pins are to usb ports one row of 4 is one usb port the other row is another one (so 2)
They are usually set up to be 1 pin, 5v, 2 wins information, in out, and the 4th being ground. Heres a diagram:

There can be a 9th pin two. Thers a colour scheme two:
Red= 5V
Green = Minus Data
White= Plus Data
Black= Ground

The order is Usually Red, White, Green, Black (left to right) across one row of pins, so set them out like that, and then test the USB ports with a usb devices if it don't work then the order will be back to front Black, Green, White, Red (left to right) so try and do that. I'll look into the front audio I think I might get what you have to do.

SiB Jul 05, 2005, 08:52pm EDT Report Abuse
>> Re: Dell Dem. 4450 Modding
The 9 pin audio i can help with, its arranged with 9 pins 1 to 10 yet 8 don't exsist. Heres is the plan

If there is not writing on the little connecters or if there is you can use thiis colour scheme to help.

Heres the colour scheme:
10=Thick black rubbery cable (usually the last one left after you put the rest in)

Hope my two posts help and link the new PSU two get it running lol, ever need help ask.

Adam Kolak Jul 05, 2005, 10:08pm EDT Report Abuse
>> Re: Dell Dem. 4450 Modding
Here are the complete pinout diagrams for the front panel and control panel.

I have been wanting do the same thing as you with my Dell 4550 (which i think is just like what you have), i told one showed these diagrams to another HWA analysis, and he said "You got the rosetta stone".

Adam Kolak
Moderator, Hardware Analysis
DFI LP P35-T2RS | Xeon Quad @ 3.2Ghz | 4GB DDR2-1000 | 8800GT 512MB | See Profile
Brian Mayer Feb 16, 2009, 10:32pm EST Report Abuse
>> Re: Dell Dem. 4450 Modding

Thanks for these pinouts on the Dimension... got a question for you experts now. :)

Why does the Dell Front Panel AUDIO_CABLE connector from this link have three ground wires on it?

Are they all required? Meaning if I wanted to use this Dell front audio cable connector on my Asus 9-pin (2 rows: 4 and 5) front-panel audio connector (described here -, would I have to find a way to ground all three pins? The Asus connector looks to only have one, so just wondering why Dell's has three...

Thanks in advance!



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