HP Dc7700 HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 62

System Support PCI Express Connectors A1 A11 A12 A18 x1 Connector A82 x16 Connector B1 B11 B12 B82 Figure 4-6. PCI Express Bus Connectors J31 (x1) and J41(x16) on system board Pin B Signal 01 +12 VDC 02 +12 VDC 03 RSVD 04 GND 05 SMCLK 06 +5 VDC 07 GND 08 +3.3 VDC 09 JTAG1 10 3.3 Vaux 11 WAKE 12 RSVD 13 GND 14 PETp0 15 PETn0 16 GND 17 PRSNT2# 18 GND 19 PETp1 20 PETn1 21 GND 22 GND 23 PETp2 24 PETn2 25 GND 26 GND 27 PETp3 28 PETn3 Table 4-6. PCI Express Bus Connector Pinout A Signal Pin B Signal PRSNT1# 29 GND +12 VDC 30 RSVD +12 VDC 31 PRSNT2# GND 32 GND +5 VDC 33 PETp4 JTAG2 34 PETn4 JTAG4 35 GND JTAG5 36 GND +3.3 VDC 37 PETp5 +3.3 VDC 38 PETn5 PERST# 39 GND GND 40 GND REFCLK+ 41 PETp6 REFCLK- 42 PETn6 GND 43 GND PERp0 44 GND PERn0 45 PETp7 GND 46 PETn7 RSVD 47 GND GND 48 PRSNT2# PERp1 49 GND PERn1 50 PETp8 GND 51 PETn8 GND 52 GND PERp2 53 GND PERn2 54 PETp9 GND 55 PETn9 GND 56 GND A Signal Pin B Signal PERp3 57 GND PERn3 58 PETp10 GND 59 PETn10 RSVD 60 GND RSVD 61 GND GND 62 PETp11 PERp4 63 PETn11 PERn4 64 GND GND 65 GND GND 66 PETp12 PERp5 67 PETn12 PERn5 68 GND GND 69 GND GND 70 PETp13 PERp6 71 PETn13 PERn6 72 GND GND 73 GND GND 74 PETp14 PERp7 75 PETn14 PERn7 76 GND GND 77 GND RSVD 78 PETp15 GND 79 PETn15 PERp8 80 GND PERn8 81 PRSNT2# GND 82 RSVD GND PERp9 A Signal PERn9 GND GND PERp10 PERn10 GND GND PERp11 PERn11 GND GND PERp12 PERn12 GND GND PERp13 PERn13 GND GND PERp14 PERn14 GND GND PERp15 PERn15 GND 4-10 www.hp.com Technical Reference Guide