You can fit an ATX motherboard in the case but you will need to rewire the front panel connector an do a little fitting around the I/O on the back. You'll need a new powersupply that is  P4 compatible. The Intel 845 motherboards are nearly the same dimension as your board. What it boils down to is this: If you like a challenge and have the ability try updating your case, you can save $30 to $50. If you want the easiest route buy a case with the powersupply, motherboard, cpu, ram, and use the drives from your computer.

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@dmak124 wrote:
Hey guys, I'm planning on upgrading my computer to something more powerful soon but Im not sure if I can use my dell case.  I have a Dimension 4100 series with the P3 733 and I would like to put a 2.4 ghz in it.  Has anyone tried upgrading motherboards without swapping out cases and if so, will any board work as long as it is an ATX? 

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Hi dmak124

It can be done,I did it..........lol ..About four months ago. At the time there was a savings,,,rather than go the new case route.

As of now,,,The savings is  nothing. You can actually get a case and say 350w  P4 power supply, cheaper than you can buy a 350w power supply alone . Look here.  I guess ill go for the $37 one.

I am going to be ordering one of these soon and put my Dell dim 4100 back together as a spare tower.

Good luck on what ever you decide,,,,,,,,

rustymt

 

 

Dell Dimension 4100 (incase upgrade) AsusP4PEgl / Intel(R) P4 2.4(oc 2.7)
Intel(R) App Acc Win's XP oem home/ 2000pro IE 6.0
Bios:Award Medallion v6.0 1gig ddr pc2700
MaX30gig,MaX80gig,Wd20gig Generic Floppy dr SamSung DVD rom
CyberDrv CD-R/RW IDE Intel(R) 8201 Ultra ATA Controller
IDE Intel(R) 8201 Ultra ATA Controller Raid IDE ATA/133/Serial ATA
Trios II Drive selector Antec Rd Data cables Video:NVIDA gf4 Ti4200
Audio: SoundMax ADIAD(1980 6chan audio CODEC) AOpen 56k v.92 Fax
Antec TrUE 330w DuAL fAN Ps 3 Case exhaust fans 1 frt/pan intake fan
Dell E770s [Monitor] Logitech QuickCam Express Lexmark Z22-Z32 Series Microsoft Keyboard Lodgitech Optical cL

Nice!

Can u give me some details on how u did it?

Like how u mounted the new mobo and how u worked with da wiring in the front??

Thx