Pci Express (X16); Pci Express (X16) Pinout (J6C1) - Intel 915GME User Manual

Mobile express chipset development kit
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Hardware Reference—Mobile Intel
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 16 lane PCI Express Graphics slot and supports either x1 or x16
modes. The slot is wired "lane reversed" which connects the Mobile Intel
Express Chipset lanes 0 through 15 to lanes 15 through 0 on the slot. The Mobile Intel
915GME Express Chipset will internally un-reverse this wiring since its CFG9 power-on
strap is tied low.
Table 13.
PCI Express (x16) Pinout (J6C1) (Sheet 1 of 3)
Pin
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A20
A21
A22
A23
A24
A25
A26
A27
A28
A29
April 2007
Order Number: 317230-001US
®
915GME Express Chipset
Description
Pin
PRSNT1#
B1
+12 V
B2
+12 V
B3
GND
B4
(JTAG) TCK
B5
(JTAG) TDI
B6
(JTAG) TDO
B7
(JTAG) TMS
B8
+3.3 V
B9
+3.3 V
B10
PERST#
B11
GND
B12
REFCLK+
B13
REFCLK-
B14
GND
B15
LANE 0 (R+)
B16
LANE 0 (R-)
B17
GND
B18
RSVD
B19
GND
B20
LANE 1 (R+)
B21
LANE 1 (R-)
B22
GND
B23
GND
B24
LANE 2 (R+)
B25
LANE 2 (R-)
B26
GND
B27
GND
B28
LANE 3 (R+)
B29
Description
+12 V
+12 V
RSVD
GND
SMCLK
SMDAT
GND
+3.3 V
(JTAG) TRST#
+3.3 VAUX
WAKE#
RSVD
GND
LANE 0 (T+)
LANE 0 (T-)
GND
PRSNT2*
GND
LANE 1 (T+)
LANE 1 (T-)
GND
GND
LANE 2 (T+)
LANE 2 (T-)
GND
GND
LANE 3 (T+)
LANE 3 (T-)
GND
Mobile Intel
®
915GME
®
®
915GME Express Chipset
Development Kit User's Manual
43

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