Compaq 164SX Manual De Usuario
4–8
AlphaPC 164SX Connector Pinouts
SROM Test Data Input Connector Pinouts
4.9 SROM Test Data Input Connector Pinouts
Table 4–9 shows the SROM test data input connector pinouts.
4.10 Input Power Connector Pinouts
Table 4–10 shows the input power connector pinouts.
4.11 Enclosure Fan Power Connector Pinouts
Table 4–11 shows the enclosure fan power connector pinouts.
1
This pinout is ATX-compliant.
Table 4–9 SROM Test Data Input Connector Pinouts (J21)
Pin
Signal
Description
1
NC
—
2
SROM_CLK_L
Clock out
3
Gnd
—
4
NC
—
5
TEST_SROM_D_L
SROM serial data in
6
NC
—
Table 4–10 Input Power Connector Pinouts (J2)
1
Pin
Voltage
Pin
Voltage
Pin
Voltage
Pin
Voltage
1
+3.3 V dc
2
+3.3 V dc
3
Gnd
4
+5 V dc
5
Gnd
6
+5 V dc
7
Gnd
8
P_DCOK
9
5 V SB
10
+12 V dc
11
+3.3 V dc
12
–12 V dc
13
Gnd
14
PS_ON
15
Gnd
16
Gnd
17
Gnd
18
–5 V dc
19
+5 V dc
20
+5 V dc
Table 4–11 Enclosure Fan (+12 V dc) Power Connector Pinouts (J16)
Pin
Voltage
1
Gnd
2
+12 V dc
3
Gnd