Intel 317443-001US user manual PCI Express* x16 Pinout J6C1 Sheet 1 of

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.

4.6.2.2PCI 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

	Intel® CoreTM 2 Duo processor with the Mobile Intel® 945GME Express Chipset
May 2007	Manual
Order Number: 317443-001US	45