Sun Microsystems Fire V890 Service Manual page 147

d. Fan power cable from connectors J3804(P6), J3807(P10), and J3806(P3)
e. Fan status cable (P28) from connector J3801(P28)
f. I/O signal cable (P26) from connector J3201(P26)
g. I/O board remote sense cable (P29) from connector J3202(P29)
h. I/O board power cable (P14) from connector J3203(P14)
i. PCI external status cable (P23) from connector J3101(P23)
5. Remove the hex standoffs securing the serial port plate to the system rear panel.
Chapter 3 Servicing the Input/Output Board Side Components 119