Datasheet
1  Support for the Intel® Core™2 Quad** 
and Intel® Core™2 Duo processors: 
Features quad-core and dual-core 
processing with 1333 / 1066 / 800 MHz 
system bus in the LGA775 package.
2  Intel® G33 Express Chipset: Offers a 
new level of visual quality with integrated 
Intel® Graphics Media Accelerator X3100 
(Intel® GMA X3100) with Intel® Clear 
Video Technology.
3  Dual-Channel DDR2 800 / 667 
memory support: Four DIMM sockets, 
designed to support up to 8 GB
1
 of DDR2 
800 / 667 SDRAM memory, delivering 
greater platform performance and flexible 
memory support.
4  PCI Express* x16 graphics connector: 
Increases graphics bandwidth and pro
-
vides up to 4 GB/s per direction.
5  Four Serial ATA ports (3.0 Gb/s): 
Facilitates high-speed storage and data 
transfers at up to 3 Gb/s for each of 
four ports.
6  Integrated Intel® PRO 10/100/1000 
Network Connection: Features 
on-board 10 / 100 / 1000 Mbps Ethernet 
LAN connectivity.
7  Intel® High Definition Audio with 
5.1 surround sound: 
Enables high 
quality integrated audio that rivals the 
performance of high-end discrete audio
solutions.
  8 Two PCI connectors: Provides 
expansion slots for custom system 
configurations and future add-in card 
upgrades.
  9 One PCI Express* x1 connector: 
Designed for bandwidth-intensive 
applications, PCI Express x1 I/O offers 
up to 3.5 times the bandwidth over 
traditional PCI architecture.
 10  Twelve Hi-Speed USB 2.0 ports: 
Provides six back panel ports and an 
additional six USB ports via three 
internal headers.
 11  1394a ports: One back panel port 
and one internal header (for an 
additional port) enable data transfer 
from consumer electronic devices such 
as digital camcorders and MP3 players.
 12  Intel® Quiet System Technology: 
Enables advanced fan speed control 
to keep system cool and reduce noise 
levels.
 13  MicroATX form factor
Features and Benefits
Intel® Desktop Board DG33BU
9.6” / 24.38 cm
9.6” / 24.38 cm
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5
8 9
3
2
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7
116 10
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