Dell Support > Dimension 8300 Desktop PC > Main Support Page,http://support.dell.com/support/edocs/systems/dim8300/sm/index.htm
Left-click on - Technical Specifications - in the list.
Left-click on - Physical - in the list.
Height: How tall the computer tower is. Outside edge to outside edge measurement.
Width: How wide the computer tower is. Outside edge to outside edge measurement.
Depth: How long the computer tower is. Outside edge to outside edge measurement.
If you meant Specifications instead;
Intel Celeron, or Pentium 4, that uses a Socket 478 processor socket.
Either a 533MegaHertz Front Side Bus, or an 800MHz FSB.
(Dell also indicates the Intel Pentium 4 Extreme Edition processors are supported. Too expensive for what you get in return)http://en.wikipedia.org/wiki/Socket_478
B) Ram Memory:
DDR Sdram that operates at 333MHz, or 400MegaHertz.
PC2700 and PC3200 respectively.
Maximum TOTAL Amount is 4GigaByte
There are 4 Ram Memory slots. EACH slot has a Maximum Amount of 1GB.
C) Motherboard Chipset:
Northbridge chip: Intel 875P. (Part Number Intel 82875P )
(For Intel the Northbridge chip is the MCH, for this particular Northbridge chipset.
Memory Controller Hub)
The Southbridge chip is an Intel 82801EB (Part Number) or Intel 82801ER (P/N)
Commonly known as the Intel ICH5, or Intel ICH5R.http://en.wikipedia.org/wiki/List_of_Intel_chipsets#Pentium_4_chipsets
In the chart go down on the right side to - 875P
Looking across, and at the headings, you can see under the heading - Processors, that there are more Intel processors supported, than just the Intel Celeron's, and Pentium 4's.
Core2 Duo, Core2 Quad, Core2 Extreme, Pentium Dual Core, and Xeon.
Problem is they don't use a Socket 478 processor socket.
All except for the Xeon ( 'Zee-On' ) use an LGA 775 processor socket.
Xeon models use a Socket 603, or Socket 604, or LGA 771, processor socket.
It is just processors that the Intel 875P chipset will support.
D) Graphics Expansion Slot:
Uses AGP 8X graphics cards.
For additional questions please post in a Comment.