Enterprise-III EISA VLB Motherboard User's Guide
77
Step 10 Install Adapter Cards,
Continued
VL-Bus
, cont'd
Pin Use
Pin
Use
A26
ADR22
B26
ADR23
A27
VCC B27
ADR21
A28
ADR20
B28
ADR19
A29
ADR18
B29
GND
A30
ADR16
B30
ADR17
A31
SA00
B31
GND
A32
ADR12
B32
VCC
A33
ADR10
B33
ADR13
A34
ADR08
B34
ADR11
A35
GND
B35
ADR09
A36
ADR06
B36
ADR07
A37
ADR04
B37
ADR05
A38
WBACK#
B38
GND
A39
BE0#
B39
ADR03
A40
VCC
B40
ADR02
A41
BE1#
B41
N/C
A42
BE2#
B42
RESET#
A43
GND
B43
D/C#
A44
BE3#
B44
M/IO#
A45-47
A05#
B45-47
W/R#
A48
LRDY#
B48
RDYRTN#
A49
LDEV<>#
B49
GND
A50
LREQ<>#
B50
IRQ9
A51
GND
B51
BRDY#
A52
LGNT<>#
B52
BLAST#
A53
VCC
B53
ID0
A54
ID5
B54
ID1
A55
ID3
B55
GND
A56
ID4
B56
LCLK
A57
LKEN#
B57
VCC
A58
LEADS#
B58
LBS16#
Step 11 Perform Initial Test and Configuration
Before powering up the system:
_ make sure that all adapter cards are seated properly,
_ make sure all connectors are properly seated,
_ if a math coprocessor or Upgradable Processor is used, make sure it is seated properly,
_ make sure there are no screws or other foreign material on the motherboard,
_ plug the system into a surge-protected power strip, and
_ make sure blank back panels are installed on the back of the chassis to minimize RF emissions.