This slot uses a 46-pin, 50-position PCI-like connector; 2 pairs of positions are occupied by key.
This slot may be designated as slightly repositioned cutted 3.3V PCI slot: short parts of AMR and PCI slot have equal length (it made ACR - an extension to AMR - possible with use of standard PCI connector).
As PCI, AMR may share its place with ISA slot.
Generally, color of slot is grey-brown.
Component (primary) and solder (secondary) sides of board are identical to PCI.
Pins are counted from card bracket to the deeper edge of board; B is primary side of board, A is secondary (as with the PCI).
Connector is divided into 2 sections by a key, as in PCI.
Instead of PCI-like numbering of contacts, AMR does not specify numbers for positions occupied by key. For example, 3.3V PCI slot ends its first part at A11/B11, and starts second at A14/B14 (as these 12th and 13th positions may be populated in 5V slot), but AMR continues at A12/B12, because populating the key area with contacts is not planned.
|
B1 |
AUDIO_MUTE# |
AUDIO_PWRDN |
A1 |
|
B2 |
GND |
MONO_PHONE |
A2 |
|
B3 |
MONO_OUT/PC_BEEP |
RESERVED |
A3 |
|
B4 |
RESERVED |
RESERVED |
A4 |
|
B5 |
RESERVED |
RESERVED |
A5 |
|
B6 |
PRIMARY_DN# |
GND |
A6 |
|
B7 |
-12V |
+5V dual / +5VSB |
A7 |
|
B8 |
GND |
USB_OC# |
A8 |
|
B9 |
+12V |
GND |
A9 |
|
B10 |
GND |
USB+ |
A10 |
|
B11 |
+5V Digital |
USB- |
A11 |
|
|
Keyway |
Keyway |
|
|
|
Keyway |
Keyway |
|
|
B12 |
GND |
GND |
A12 |
|
B13 |
RESERVED |
S/P-DIF_IN |
A13 |
|
B14 |
RESERVED |
GND |
A14 |
|
B15 |
+3.3V Digital |
+3.3V dual / +3.3VSB |
A15 |
|
B16 |
GND |
GND |
A16 |
|
B17 |
AC97_SDATA_OUT |
AC97_SYNC |
A17 |
|
B18 |
AC97_RESET# |
GND |
A18 |
|
B19 |
AC97_SDATA_IN3 |
AC97_SDATA_IN1 |
A19 |
|
B20 |
GND |
GND |
A20 |
|
B21 |
AC97_SDATA_IN2 |
AC97_SDATA_IN0 |
A21 |
|
B22 |
GND |
GND |
A22 |
|
B23 |
AC97_MSTRCLK |
AC97_BITCLK |
A23 |
correct
incorrect