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Intel
®
 Core
TM
 2 Duo processor with the Mobile Intel
®
 945GME Express Chipset
May 2007
Manual
Order Number: 317443-001US
 
45
Hardware Reference—Intel
®
 945GME Express Chipset
into the socket, turn the screw 180 degrees clock-wise to secure the CPU in the socket. 
Note that the slot on the screw aligns with the lock and unlock legend on the case of 
the CPU socket.
Caution:
Please refer to the CPU installation instruction in Appendix A prior to inserting the CPU 
as the CPU and socket can be easily damaged.
4.6.2.2
PCI Express* (x16)
The platform has one x16 lane PCI Express* Graphics slot and supports either x1 or 
x16 modes. The slot is wired “lane reversed” which connects the Intel
®
 945GME 
Express Chipset lanes 0 through 15 to lanes 15 through 0 on the slot. The Intel
®
 
945GME Express Chipset will internally un-reverse this wiring since its CFG9 power-on 
strap is tied low.
Table 12.
PCI Express* (x16) Pinout (J6C1) (Sheet 1 of 3)
Pin
Description
Pin
Description
A1
PRSNT1#
B1
+12 V
A2
+12 V
B2
+12 V
A3
+12 V
B3
+12 V
A4
GND
B4
GND
A5
(JTAG) TCK
B5
SMCLK
A6
(JTAG) TDI
B6
SMDAT
A7
(JTAG) TDO
B7
GND
A8
(JTAG) TMS
B8
+3.3 V
A9
+3.3 V
B9
(JTAG) TRST#
A10
+3.3 V
B10
+3.3 VAUX
A11
PERST#
B11
WAKE#
A12
GND
B12
RSVD
A13
REFCLK+
B13
GND
A14
REFCLK-
B14
LANE  0  (T+)
A15
GND
B15
LANE  0  (T-)
A16
LANE 0 (R+)
B16
GND
A17
LANE 0 (R-)
B17
PRSNT2*
A18
GND
B18
GND
A19
RSVD
B19
LANE 1 (T+)
A20
GND
B20
LANE  1  (T-)
A21
LANE 1 (R+)
B21
GND
A22
LANE 1 (R-)
B22
GND
A23
GND
B23
LANE  2  (T+)
A24
GND
B24
LANE  2  (T-)
A25
LANE 2 (R+)
B25
GND
A26
LANE 2 (R-)
B26
GND
A27
GND
B27
LANE  3  (T+)
A28
GND
B28
LANE  3  (T-)
A29
LANE 3 (R+)
B29
GND