Intel Core2 Extreme Processor X6800 and Intel Core2 Duo Desktop Processor E6000 and E4000 Sequences Datasheet

Datasheet 113

Balanced Technology Extended (BTX) Boxed Processor Specifications

Table 39. TMA Power and Signal Specifications

Description Min Typ Max Unit Notes

+12V: 12 volt fan power supply 10.2 12 13.8 V

IC:

- Peak Fan current draw

- Fan start-up current draw

- Fan start-up current draw maximum

duration

—

1.0

—

1.5

2.0

1.0

Second

SENSE: SENSE frequency — 2 —

pulses per

fan

revolution

NOTES:

1. Baseboard should pull this pin up to 5V with a resistor.

CONTROL 21 25 28 kHz

2, 3

2. Open Drain Type, Pulse Width Modulated.

3. Fan will have a pull-up resistor for this signal to maximum 5.25 V.

Figure 45. Balanced Technology Extended (BTX) Mainboard Power Header Placement

(hatched area)