PCI Express 8x pinout. PCI Express was introduced to overcome the limitations of the original PCI bus. Developed and released by Intel over a decade ago, the original PCI bus operated at 33MHz and 32 bits with a peak theoretical bandwidth of 132MB per second. It used a shared bus topology – bus bandwidth is shared among multiple devices - to enable communication among the different devices on the bus. Free service manuals.

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Connector pinout: PCI Express 8x

PCI Express was introduced to overcome the limitations of the original PCI bus. Developed and released by Intel over a decade ago, the original PCI bus operated at 33MHz and 32 bits with a peak theoretical bandwidth of 132MB per second. It used a shared bus topology – bus bandwidth is shared among multiple devices - to enable communication among the different devices on the bus.

PCI Express 1x - 98 pin Female Connector

pin	name	direction	description	color
1B	+12v		+12 volt power
2	+12v		+12 volt power
3	RSVD		Reserved
4	GND		Ground
5	SMCLK		SMBus clock
6	SMDAT		SMBus data
7	GND		Ground
8	+3.3v		+3.3 volt power
9	JTAG1		+TRST#
10	3.3Vaux		3.3v volt power
11	WAKE#		Link Reactivation
12	RSVD		Reserved
13	GND		Ground
14	HSOp(0)		Transmitter Lane 0, Differential pair
15	HSOn(0)
16	GND		Ground
17	PRSNT#2		Hotplug detect
18	GND		Ground
19	HSOp(1)		Transmitter Lane 1, Differential pair
20	HSOn(1)
21	GND		Ground
22	GND		Ground
23	HSOp(2)		Transmitter Lane 2, Differential pair
24	HSOn(2)
25	GND		Ground
26	GND		Ground
27	HSOp(3)		Transmitter Lane 3, Differential pair
28	HSOn(0)
29	GND		Ground
30	RSVD		Reserved
31	PRSNT#2		Hot plug detect
32	GND		Ground
33	HSOp(4)		Transmitter Lane 4, Differential pair
34	HSOn(4)
35	GND		Ground
36	GND		Ground
37	HSOp(5)		Transmitter Lane 5, Differential pair
38	HSOn(5)
39	GND		Ground
40	GND		Ground
41	HSOp(6)		Transmitter Lane 6, Differential pair
42	HSOn(6)
43	GND		Ground
44	GND		Ground
45	HSOp(7)		Transmitter Lane 7, Differential pair
46	HSOn(7)
47	GND		Ground
48	PRSNT#2		Hot plug detect
49	GND		Ground
1A	PRSNT#1		Hot plug presence detect
2	+12v		+12 volt power
3	+12v		+12 volt power
4	GND		Ground
5	JTAG2		TCK
6	JTAG3		TDI
7	JTAG4		TDO
8	JTAG5		TMS
9	+3.3v		+3.3 volt power
10	+3.3v		+3.3 volt power
11	PWRGD		Power Good
12	GND		Ground
13	REFCLK+		Reference Clock Differential pair
14	REFCLK-
15	GND		Ground
16	HSIp(0)		Receiver Lane 0, Differential pair
17	HSIn(0)
18	GND		Ground
19	RSVD		Reserved
20	GND		Ground
21	HSIp(1)		Receiver Lane 1, Differential pair
22	HSIn(1)
23	GND		Ground
24	GND		Ground
25	HSIp(2)		Receiver Lane 2, Differential pair
26	HSIn(2)
27	GND		Ground
28	GND		Ground
29	HSIp(3)		Receiver Lane 3, Differential pair
30	HSIn(3)
31	GND		Ground
32	RSVD		Reserved
33	RSVD		Reserved
34	GND		Ground
35	HSIp(4)		Receiver Lane 4, Differential pair
36	HSIn(4)
37	GND		Ground
38	GND		Ground
39	HSIp(5)		Receiver Lane 5, Differential pair
40	HSIn(5)
41	GND		Ground
42	GND		Ground
43	HSIp(6)		Receiver Lane 6, Differential pair
44	HSIn(6)
45	GND		Ground
46	GND		Ground
47	HSIp(7)		Receiver Lane 7, Differential pair
48	HSIn(7)
49	GND		Ground