Intel 2 Quad Q8400S BX80580Q8400S Data Sheet
Product codes
BX80580Q8400S
Electrical Specifications
30
Datasheet
NOTES:
1.
1.
Individual processors operate only at or below the rated frequency.
2.
Listed frequencies are not necessarily committed production frequencies.
2.8.2
FSB Frequency Select Signals (BSEL[2:0])
The BSEL[2:0] signals are used to select the frequency of the processor input clock
defines the possible combinations of the signals and the
frequency associated with each combination. The required frequency is determined by
the processor, chipset, and clock synthesizer. All agents must operate at the same
frequency.
The Intel
®
Core™2 Duo processor E7000 series operates at a 1333 MHz FSB and
1066 MHz FSB frequency (selected by a 333 MHz BCLK[1:0] or 266 MHz BCLK[1:0]
frequency) and the Intel
®
Core™2 Duo processor E8000 series operates at a 1333 MHz
FSB frequency (selected by a 333 MHz BCLK[1:0] frequency). Individual processors will
only operate at their specified FSB frequency.
For more information about these signals, refer to
Table 16.
Core Frequency to FSB Multiplier Configuration
Multiplication of
System Core
Frequency to FSB
Frequency
Core Frequency
(266 MHz BCLK/1066 MHz
FSB)
Core Frequency
(333 MHz BCLK/
1333 MHz FSB)
Notes
1, 2
1/6
1.60 GHz
2 GHz
-
1/7
1.86 GHz
2.33 GHz
-
1/7.5
2 GHz
2.50 GHz
-
1/8
2.13 GHz
2.66 GHz
-
1/8.5
2.26 GHz
2.83 GHz
-
1/9
2.40 GHz
3 GHz
-
1/9.5
2.53 GHz
3.16 GHz
-
1/10
2.66 GHz
3.33 GHz
-
1/10.5
2.80 GHz
3.50 GHz
-
1/11
2.93 GHz
3.66 GHz
-
1/11.5
3.06 GHz
3.83 GHz
-
1/12
3.20 GHz
4 GHz
-
1/12.5
3.33 GHz
4.16 GHz
-
1/13
3.46 GHz
4.33 GHz
-
1/13.5
3.60GHz
4.50 GHz
-
1/14
3.73 GHz
4.66 GHz
-
1/15
4 GHz
5 GHz
-