Pci Backplane Jumpers; Figure C-2 Pci Backplane Jumper Locations; Table C-4 Pci Backplane Jumpers - Compaq ES40CSLP Installation, User & Service Manual

Jumpers and Switches
C.2 PCI Backplane Jumpers
Table C-4 lists the jumpers on the PCI backplane along with the name of the jumper and a
description of the settings. Figure C-2 shows the location of the PCI backplane jumpers.

Table C-4 PCI Backplane Jumpers

Jumper
J13
J20
J21
J31

Figure C-2 PCI Backplane Jumper Locations

J19
J15
C–4 Compaq ES40CSLP Rackmount System Installation/User/Service Guide
Name Description
VBAT to RTC 1–2: Enable VBAT to real-time clock (RTC) chip
2–3: Disable VBAT to RTC chip.
The setting on this jumper should be checked if you lose time
between power cycles or if the operating system comes up with a
very inaccurate time.
PCI 0 PME 1–2: Enable PCI 0 power management events (PME).
2–3: Disable PCI 0 PME (default)
1–2: Enable PCI 1 PME
PCI 1 PME
2–3: Disable PCI 1 PME
COM1 DTR 1–2: Do not force COM1 DTR
2–3: Force COM1 DTR (default)
This jumper is provided so that you can force DTR. The default
position prevents disconnection of the modem on a power cycle.
1 2 3
J13
7
6
5
4
3
2
1
J16 J18
J17 J50
J10
J14
3 2
J7
J6
1 2 3
J5
J4
J3
J2
J1
J9
1
2
J31
3
1
J21
J20
EA-00095