Gigabyte GA-G1975X Manual - Page 8

Block Diagram - overclock

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Block Diagram 2 PCI-ECLK (100MHz) LGA775 Processor CPUCLK+/-(266/200 MHz) PCI Express x16 Host Interface DDRII 888(Note 1)/ 667 (Note 2)/ 533MHz DIMM Intel® 975X Dual Channel Memory MCHCLK (266/200MHz) 2 PCI Express x 4 LAN1 RJ45 PCI-ECLK (100MHz) x4/x1 Broadcom 5789 x4/x1 x1 PCI Express Bus PCI Bus TSB43AB23 IT8211F Intel® ICH7R CREATIVE CA0106 2 PCI 8 USB Ports Dual BIOS 4 SATA 3Gb/s ATA33/66/100 IDE Channel IT8712 Floppy COM Port PS/2 KB/Mouse 24MHz 33MHz PCICLK(33MHz) 3 IEEE1394a ATA33 / 66 / 100 / 133 IDE Channel Surround Speaker Out Center/Subwoofer Speaker Out Side Speaker Out MIC Line-Out Line-In SPDIF In SPDIF Out (Note 1) DDR II memory can be overclocked to 888MHz (must be used with a 1066MHz FSB processor) through overclocking in BIOS. Go to GIGABYTE's website for more information about the supported DDR II memory modules for this feature. (Note 2) To use a DDR II 667 memory module on the motherboard, you must install an 800/1066MHz FSB processor. - 8 -

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- 8 -
Block Diagram
(Note 1) DDR II memory can be overclocked to 888MHz (must be used with a 1066MHz FSB processor)
through overclocking in BIOS. Go to GIGABYTE's website for more information about the
supported DDR II memory modules for this feature.
(Note 2) To use a DDR II 667 memory module on the motherboard, you must install an 800/1066MHz
FSB processor.
LGA775
Processor
CPUCLK+/-(266/200 MHz)
PCI Express x16
Host
Interface
Intel
®
975X
MCHCLK (266/200MHz)
DDRII 888
(Note 1)
/ 667
(Note 2)
/
533MHz
DIMM
24MHz
33MHz
IT8712
ATA33/66/100
IDE Channel
Intel
®
ICH7R
Dual BIOS
2 PCI
PCI Bus
2 PCI Express x 4
PCI Express Bus
Dual Channel Memory
PS/2 KB/Mouse
COM Port
PCI-ECLK
(100MHz)
2 PCI-ECLK
(100MHz)
4 SATA 3Gb/s
Broadcom
5789
x1
LAN1
RJ45
x4/x1
x4/x1
PCICLK(33MHz)
3 IEEE1394a
TSB43AB23
IT8211F
ATA33 / 66 / 100 / 133 IDE Channel
8 USB
Ports
SPDIF Out
Center/Subwoofer Speaker Out
Line-Out
MIC
Line-In
SPDIF In
Side Speaker Out
Surround Speaker Out
CREATIVE
CA0106
Floppy