Balanced Technology Extended (Btx) Mainboard Power Header Placement (Hatched Area); Tma Power And Signal Specifications - Intel E6420 - Core 2 Duo Dual-Core Processor Datasheet

Balanced Technology Extended (BTX) Boxed Processor Specifications
Table 40.

TMA Power and Signal Specifications

+12V: 12 volt fan power supply
IC:
- Peak Fan current draw
- Fan start-up current draw
- Fan start-up current draw maximum
duration
SENSE: SENSE frequency
CONTROL
NOTES:
Baseboard should pull this pin up to 5V with a resistor.
1.
Open Drain Type, Pulse Width Modulated.
2.
3. Fan will have a pull-up resistor for this signal to maximum 5.25 V.
Figure 46. Balanced Technology Extended (BTX) Mainboard Power Header Placement
(hatched area)
Datasheet
Description Min Typ Max
10.2 12 13.8
— 1.0 1.5
— — 2.0
— — 1.0
— 2 —
21 25 28
Unit Notes
V
A
A
Second
pulses per
1
fan
revolution
2, 3
kHz
117