TECH SPECS:-

Features BOX/BLKDG31PR
Board series Classic series
BIOS ID string PRG3110H.86A
AA# (altered assembly) D97573-xxx
Processor Intel Core2 Quad processor (95W TDP)
Intel Core2 Duo processor
Intel Pentium dual-core processor
Intel Celeron 400 Sequence processor

Performance
(04B/05B)/mainstream
(04A/05A) vreg support 95W FMB
FSB support 1333/1066/800 MHz
Processor socket LGA775
Chipset Intel G31 Express Chipset
Integrated graphics Yes
Form factor microATX
PCI Express x1 1
SATA (ports) 4 (black)
PATA (ports) 1 port, 2 devices
IEEE-1394a ports None
TPM None
Intel Matrix Storage Technology (RAID) None
Hyper-Threading Technology support Yes
Instantly Available PC Yes
Supports Intel Viiv processor technology Yes
Memory - maximum supported 4 GB
800/667 MHz
Audio Intel High Definition Audio (RealTek* ALC888*)
S/PDIF S/PDIF Out Audio header (3x1)
LAN controller 10/100/1000 LAN (RealTek* RTL 8111*)
USB connectors 8 USB 2.0 (4-F, 4-B)
PCI slots 2
PCI Express x16 1.