Intel III Xeon 667 MHz 80526KZ667256 Ficha De Dados

88

also recommended that the power header be consistent with the power header for other boxed processors
that feature a fan-sense capable fan heat sink.  Figure 40 shows the boxed processor’s standard fan/heat sink
power cable connector.  Table  48 shows the boxed processor’s standard fan power cable connector
requirements.  The actual requirements for the auxiliary fan power may vary.  Consult your fan manufacturer
and/or fan documentation for specifications.

P i n

S i g n a l

S t r a i g h t   s q u a r e   p i n ,   3 - p i n   t e r m i n a l   h o u s i n g   w i t h

p o l a r i z i n g   r i b s   a n d   f r i c t i o n   l o c k i n g   r a m p .

0 . 1 0 0 "   p i n   p i t c h ,   0 . 0 2 5 "   s q u a r e   p i n   w i d t h .

W a l d o m * / M o l e x *   P / N   2 2 - 0 1 - 3 0 3 7   o r   e q u i v a l e n t .

M a t c h   w i t h   s t r a i g h t   p i n ,   f r i c t i o n   l o c k   h e a d e r   o n   m o t h e r b o a r d

W a l d o m / M o l e x   P / N   2 2 - 2 3 - 2 0 3 1 ,   A M P *   P / N   6 4 0 4 5 6 - 3 ,

o r   e q u i v a l e n t .

1

2

3

G N D

+ 1 2 V

S E N S E

1

2

3

000888

+12V:  12 volt fan power supply

7V

12V

13.8V

IC:  Fan current draw

100mA

SENSE:  SENSE frequency (baseboard should pull

this pin up to appropriate V

CC

 with resistor (typically

10 to 12 k

Ω

)

2 pulses per

fan revolution

Given the complex and unique nature of baseboard layouts, and the special chassis required to support them,
thermal performance may vary greatly with each baseboard/chassis combination.  Baseboard manufacturers
must evaluate and recommend effective thermal solutions for their specific designs, particularly designs that
are proprietary or have non-standard layouts.  Such thermal solutions must take all system components into
account.  The power requirements of all processors that will be supported by the baseboard should be
accommodated. The boxed Pentium III Xeon processor at 600 MHz+ is designed to provide a flexible cooling
solution by incorporating features by which an auxiliary fan may be attached.  Should the system thermal
evaluation warrant the requirement for an auxiliary fan, an auxiliary fan must be included with the baseboard
to allow the thermal requirements of the system to be met.