Pin 1 on the connectors is indicated by the square pad on the PCB.
5 pin single row header, Amp #640456-5
| PIN |
SIGNAL |
| 1 |
LED Power |
| 2 |
Key |
| 3 |
Gnd |
| 4 |
Keylock Data |
| 5 |
Gnd |
34 pin dual row header,
Robinson Nugent #IDH-34LP-S3-TR
| PIN |
SIGNAL |
| 1 |
Gnd |
| 3 |
Gnd |
| 5 |
Gnd |
| 7 |
Gnd |
| 9 |
Gnd |
| 11 |
Gnd |
| 13 |
Gnd |
| 15 |
Gnd |
| 17 |
Gnd |
| 19 |
Gnd |
| 21 |
Gnd |
| 23 |
Gnd |
| 25 |
Gnd |
| 27 |
Gnd |
| 29 |
Gnd |
| 31 |
Gnd |
| 33 |
Gnd |
|
| PIN |
SIGNAL |
| 2 |
N-RPM |
| 4 |
NC |
| 6 |
D-Rate0 |
| 8 |
P-Index |
| 10 |
N-Motoron 1 |
| 12 |
N-Drive Sel2 |
| 14 |
N-Drive Sel1 |
| 16 |
N-Motoron 2 |
| 18 |
N-Dir |
| 20 |
N-Stop Step |
| 22 |
N-Write Data |
| 24 |
N-Write Gate |
| 26 |
P-Track 0 |
| 28 |
P-Write Protect |
| 30 |
N-Read Data |
| 32 |
N-Side Select |
| 34 |
Disk Chng |
|
6 pin mini DIN, Kycon #KMDG-6S-BS-PS
| PIN |
SIGNAL |
| 1 |
Kbd Data |
| 2 |
Reserved |
| 3 |
Gnd |
| 4 |
Kbd Power (+5V fused) with self-resetting fuse |
| 5 |
Kbd Clock |
| 6 |
Reserved |
5 pin single row header, Amp #640456-5
| PIN |
SIGNAL |
| 1 |
Kbd Clock |
| 2 |
Kbd Data |
| 3 |
Key |
| 4 |
Kbd Gnd |
| 5 |
Kbd Power (+5V fused) with self-resetting fuse |
4 pin single row header, Amp #640456-4
| PIN |
SIGNAL |
| 1 |
Speaker Data |
| 2 |
Key |
| 3 |
Gnd |
| 4 |
+5V |
8 pin single row header, Amp #640456-8
| PIN |
SIGNAL |
| 1 |
Reset (See JU18 in Configuration Jumpers above.) |
| 2 |
Gnd |
| 3 |
NC |
| 4 |
Kbd Clock |
| 5 |
Kbd Data |
| 6 |
Kbd Lock Data |
| 7 |
Kbd Power (+5V fused) with self-resetting fuse |
| 8 |
Speaker Data |
10 pin dual row header, 3M #30310-6002HB
| PIN |
SIGNAL |
| 1 |
Carrier Detect |
| 3 |
Receive Data-I |
| 5 |
Transmit Data-0 |
| 7 |
Data Terminal Ready-0 |
| 9 |
Signal Gnd |
|
| PIN |
SIGNAL |
| 2 |
Data Set Ready-I |
| 4 |
Request to Send-O |
| 6 |
Clear to Send-I |
| 8 |
Ring Indicator-I |
| 10 |
NC |
|
10 pin dual row header, 3M #30310-6002HB
| PIN |
SIGNAL |
| 1 |
Carrier Detect |
| 3 |
Receive Data-I |
| 5 |
Transmit Data-0 |
| 7 |
Data Terminal Ready-0 |
| 9 |
Signal Gnd |
|
| PIN |
SIGNAL |
| 2 |
Data Set Ready-I |
| 4 |
Request to Send-O |
| 6 |
Clear to Send-I |
| 8 |
Ring Indicator-I |
| 10 |
NC |
|
26 pin dual row header, 3M #30326-6002HB
| PIN |
SIGNAL |
| 1 |
Strobe |
| 3 |
Data Bit 0 |
| 5 |
Data Bit 1 |
| 7 |
Data Bit 2 |
| 9 |
Data Bit 3 |
| 11 |
Data Bit 4 |
| 13 |
Data Bit 5 |
| 15 |
Data Bit 6 |
| 17 |
Data Bit 7 |
| 19 |
ACK |
| 21 |
Busy |
| 23 |
Paper End |
| 25 |
Slct |
|
| PIN |
SIGNAL |
| 2 |
Auto Feed XT |
| 4 |
Error |
| 6 |
Init |
| 8 |
Slct In |
| 10 |
Gnd |
| 12 |
Gnd |
| 14 |
Gnd |
| 16 |
Gnd |
| 18 |
Gnd |
| 20 |
Gnd |
| 22 |
Gnd |
| 24 |
Gnd |
| 26 |
NC |
|
6 pin mini DIN, Kycon #KMDG-6S-BS-PS
| PIN |
SIGNAL |
| 1 |
Ms Data |
| 2 |
Reserved |
| 3 |
Gnd |
| 4 |
Kbd Power (+5V fused) with self-resetting fuse |
| 5 |
Ms Clock |
| 6 |
Reserved |
6 pin single row header, Amp #640456-6
| PIN |
SIGNAL |
| 1 |
Ms Data |
| 2 |
Reserved |
| 3 |
Kbd Gnd |
| 4 |
Kbd Power (+5V fused) with self-resetting fuse |
| 5 |
Ms Clock |
| 6 |
Reserved |
2 pin header, Amp #640456-2
| PIN |
SIGNAL |
| 1 |
Negative External Reset |
| 2 |
Gnd |
|
40 pin dual row header,
Robinson Nugent #IDH-40LP-S3-TR
| PIN |
SIGNAL |
| 1 |
Reset |
| 3 |
Data 7 |
| 5 |
Data 6 |
| 7 |
Data 5 |
| 9 |
Data 4 |
| 11 |
Data 3 |
| 13 |
Data 2 |
| 15 |
Data 1 |
| 17 |
Data 0 |
| 19 |
Gnd |
| 21 |
DRQ 0 |
| 23 |
IOW |
| 25 |
IOR |
| 27 |
IORDY |
| 29 |
DACK 0 |
| 31 |
IRQ 14 |
| 33 |
Add 1 |
| 35 |
Add 0 |
| 37 |
CS 1P |
| 39 |
IDEACTP |
|
| PIN |
SIGNAL |
| 2 |
Gnd |
| 4 |
Data 8 |
| 6 |
Data 9 |
| 8 |
Data 10 |
| 10 |
Data 11 |
| 12 |
Data 12 |
| 14 |
Data 13 |
| 16 |
Data 14 |
| 18 |
Data 15 |
| 20 |
NC |
| 22 |
Gnd |
| 24 |
Gnd |
| 26 |
Gnd |
| 28 |
+5V |
| 30 |
Gnd |
| 32 |
IOCS16 |
| 34 |
Gnd |
| 36 |
Add 2 |
| 38 |
CS 3P |
| 40 |
Gnd |
|
40 pin dual row header,
Robinson Nugent #IDH-40LP-S3-TR
| PIN |
SIGNAL |
| 1 |
Reset |
| 3 |
Data 7 |
| 5 |
Data 6 |
| 7 |
Data 5 |
| 9 |
Data 4 |
| 11 |
Data 3 |
| 13 |
Data 2 |
| 15 |
Data 1 |
| 17 |
Data 0 |
| 19 |
Gnd |
| 21 |
DRQ 1 |
| 23 |
IOW |
| 25 |
IOR |
| 27 |
IORDY |
| 29 |
DACK 1 |
| 31 |
MIRQ 0 |
| 33 |
Add 1 |
| 35 |
Add 0 |
| 37 |
CS 1S |
| 39 |
IDEACTS |
|
| PIN |
SIGNAL |
| 2 |
Gnd |
| 4 |
Data 8 |
| 6 |
Data 9 |
| 8 |
Data 10 |
| 10 |
Data 11 |
| 12 |
Data 12 |
| 14 |
Data 13 |
| 16 |
Data 14 |
| 18 |
Data 15 |
| 20 |
NC |
| 22 |
Gnd |
| 24 |
Gnd |
| 26 |
Gnd |
| 28 |
+5V |
| 30 |
Gnd |
| 32 |
IOCS16 |
| 34 |
Gnd |
| 36 |
Add 2 |
| 38 |
CS 3S |
| 40 |
Gnd |
|
4 pin single row header, Amp #640456-4
(This connector is used for both IDE and SCSI drives. See JU19 in the Jumpers section.)
| PIN |
SIGNAL |
| 1 |
+5V Pullup |
| 2 |
Light |
| 3 |
Light |
| 4 |
+5V Pullup |
50/68 high density SCSI connector, Amp #749069-7
| PIN |
SIGNAL |
| 1 |
Gnd |
| 2 |
Gnd |
| 3 |
Gnd |
| 4 |
Gnd |
| 5 |
Gnd |
| 6 |
Gnd |
| 7 |
Gnd |
| 8 |
Gnd |
| 9 |
Gnd |
| 10 |
Gnd |
| 11 |
Gnd |
| 12 |
Gnd |
| 13 |
Gnd |
| 14 |
Gnd |
| 15 |
Gnd |
| 16 |
Gnd |
| 17 |
TERMPWR |
| 18 |
TERMPWR |
| 19 |
NC |
| 20 |
Gnd |
| 21 |
Gnd |
| 22 |
Gnd |
| 23 |
Gnd |
| 24 |
Gnd |
| 25 |
Gnd |
| 26 |
Gnd |
| 27 |
Gnd |
| 28 |
Gnd |
| 29 |
Gnd |
| 30 |
Gnd |
| 31 |
Gnd |
| 32 |
Gnd |
| 33 |
Gnd |
| 34 |
WIDEPS |
|
| PIN |
SIGNAL |
| 35 |
SCZDB12 |
| 36 |
SCZDB13 |
| 37 |
SCZDB14 |
| 38 |
SCZDB15 |
| 39 |
SCZDBPH |
| 40 |
SCZDB0 |
| 41 |
SCZDB1 |
| 42 |
SCZDB2 |
| 43 |
SCZDB3 |
| 44 |
SCZDB4 |
| 45 |
SCZDB5 |
| 46 |
SCZDB6 |
| 47 |
SCZDB7 |
| 48 |
SCZDBP |
| 49 |
Gnd |
| 50 |
Gnd |
| 51 |
TERMPWR |
| 52 |
TERMPWR |
| 53 |
NC |
| 54 |
Gnd |
| 55 |
SCZATN |
| 56 |
Gnd |
| 57 |
SCZBSY |
| 58 |
SCZACK |
| 59 |
SCZRST |
| 60 |
SCZMSG |
| 61 |
SCZSEL |
| 62 |
SCZCD |
| 63 |
SCZREQ |
| 64 |
SCZIO |
| 65 |
SCZDB8 |
| 66 |
SCZDB9 |
| 67 |
SCZDB10 |
| 68 |
SCZDB11 |
|
15 pin VGA connector, Amp #748390-5
|
|
| PIN |
SIGNAL |
|
|
| 1 |
Red |
|
|
| 2 |
Green |
|
|
| 3 |
Blue |
|
|
| 4 |
NC |
|
|
| 5 |
Gnd |
|
| PIN |
SIGNAL |
|
|
| 6 |
Gnd |
|
|
| 7 |
Gnd |
|
|
| 8 |
Gnd |
|
|
| 9 |
NC |
|
|
| 10 |
Gnd |
|
|
|
| PIN |
SIGNAL |
|
|
| 11 |
NC |
|
|
| 12 |
EEDI |
|
|
| 13 |
HSYNC |
|
|
| 14 |
VSYNC |
|
|
| 15 |
EECS |
|
8 pin shielded RJ-45 connector, Molex #43202-8110
| PIN |
SIGNAL |
| 1 |
TD+ |
| 2 |
TD- |
| 3 |
RX+ |
| 4 |
NC |
| 5 |
NC |
| 6 |
RX- |
| 7 |
NC |
| 8 |
NC |
8 pin dual row header, Molex #702-46-0821
(+5V fused with self-resetting fuses)
| PIN |
SIGNAL |
| 1 |
+5V - USB0 |
| 3 |
USB0- |
| 5 |
USB0+ |
| 7 |
Gnd - USB0 |
|
| PIN |
SIGNAL |
| 2 |
+5V - USB1 |
| 4 |
USB1- |
| 6 |
USB1+ |
| 8 |
Gnd - USB1 |
|
6 pin single row header, Amp #640456-6
| PIN |
SIGNAL |
| 1 |
Gnd |
| 2 |
GPO (General Purpose Output) |
| 3 |
CI (Chassis Intrusion Input) |
| 4 |
FAN1 (Fan 1 Tachometer Input) |
| 5 |
FAN2 (Fan 2 Tachometer Input) |
| 6 |
OS# (Temperature Sense Output) |
3 pin single row header, Molex #22-23-2031
| PIN |
SIGNAL |
| 1 |
Gnd |
| 2 |
+12V |
| 3 |
FanTach |
|
The DRAM interface consists of two dual in-line memory module (DIMM) sockets and supports auto detection of memory up to 512MB of Synchronous DRAM (SDRAM) for the 440BX or up to 1GB of SDRAM for the 440GX. Minimum memory size is 8MB. The System BIOS automatically detects memory type, size and speed.
The SBC uses industry standard 64-bit or 72-bit wide gold finger DIMM DRAM in two 168-pin DIMM sockets.
Memory can be installed in one or both DIMM sockets. If only one DIMM module is used, it must be populated in the top DIMM socket (Bank 1 - BK1). If two modules are used, they must be the same DIMM type, but may be different sizes (see table below). EDO DIMMs are not supported. All DIMMs must have gold contacts.
The SBC supports DIMM memory modules which are PC-100 compliant and have the following features:
- 168-pin DIMMs with gold-plated contacts
- 100MHz SDRAM
- Non-ECC (64-bit) or ECC (72-bit) memory
- 3.3 volt only
- Single or double-sided DIMMs in the sizes listed below
- Buffered or Registered configuration
| DIMM Size |
DIMM Type |
Non-ECC |
ECC |
|
| 8 MB |
Unbuffered |
1M x 64 |
1M x 72 |
|
| 16 MB |
Unbuffered |
2M x 64 |
2M x 72 |
|
| 32 MB |
Unbuffered |
4M x 64 |
4M x 72 |
|
| 64 MB |
Unbuffered |
8M x 64 |
8M x 72 |
|
| 128 MB |
Unbuffered |
16M x 64 |
16M x 72 |
|
| 256 MB |
Registered |
32M x 64 |
32M x 72 |
|
| 512 MB |
Registered |
64M x 64 |
64M x 72 |
** |
** DP2GX models only
All memory components and DIMMs used with the SBC must be PC-100 compliant, which means that they comply with Intel's PC SDRAM specifications. These include the PC SDRAM Specification (memory component specific), the PC Unbuffered DIMM Specification, the PC Registered DIMM Specification and the PC Serial Presence Detect Specification.
|