The Adaptec RAIDport is a proprietary 60-pin dual-row connector found on late-1990s PC motherboards equipped with an integrated Adaptec AIC-7890, AIC-7895, or AIC-7896 Ultra SCSI controller. It provides a direct coprocessor bus interface between the onboard SCSI chip and Adaptec ARO-1130 series RAID expansion cards, exposing memory address lines (MA[0]–MA[14]), data lines (MD[0]–MD[7]), clock, request/acknowledge signals, and chip-select signals across its 30-pin A and B rows. At least three incompatible generations exist — RAIDport, RAIDport II, and RAIDport III — and expansion cards are not interchangeable between them; the ARO-1130U2 card is specifically required for RAIDport III slots as found on boards such as the Intel L440GX+. The connector and its pinout were never published as an open standard by Adaptec.
UNKNOWN DUAL ROW 60 PIN CONNECTOR
| Pin | Description |
|---|---|
| B01 | n/c |
| B02 | n/c |
| B03 | Ground |
| B04 | n/c |
| B05 | REQ[A]# |
| B06 | RSVD |
| B07 | REQ[B]# |
| B08 | REQ[C]# |
| B09 | LED[A]# |
| B10 | n/c |
| B11 | n/c |
| B12 | RSVD |
| B13 | CLK40 |
| B14 | Ground |
| B15 | MRW |
| B16 | MD[0] |
| B17 | MD[2] |
| B18 | MD[4] |
| B19 | Ground |
| B20 | MD[6] |
| B21 | MA[14] |
| B22 | MA[12] |
| B23 | MA[10] |
| B24 | MA[8] |
| B25 | PRSNT1 |
| B26 | MA[6] |
| B27 | MA[4] |
| B28 | Ground |
| B29 | MA[2] |
| B30 | MA[0] |
| A01 | n/c |
| A02 | n/c |
| A03 | n/c |
| A04 | n/c |
| A05 | ACK[A]# |
| A06 | RSVD |
| A07 | ACK[B]# |
| A08 | ACK[C]# |
| A09 | IDDAT |
| A10 | n/c |
| A11 | n/c |
| A12 | SY_RST# |
| A13 | ROMCS[A]# |
| A14 | RAMCS# |
| A15 | Ground |
| A16 | MDP |
| A17 | MD[1] |
| A18 | RAMPS# |
| A19 | MD[3] |
| A20 | MD[5] |
| A21 | MA[13] |
| A22 | MD[7] |
| A23 | MA[11] |
| A24 | MA[9] |
| A25 | MA[7] |
| A26 | Ground |
| A27 | MA[5] |
| A28 | MA[3] |
| A29 | SEECS[A] |
| A30 | MA[1] |
Notes
The connector is arranged as two 30-pin rows (A and B), giving 60 pins total. RAIDport, RAIDport II, and RAIDport III are physically and electrically incompatible generations; never attempt to fit an expansion card from one generation into a slot from another. The ARO-1130U2 card is required for RAIDport III. Because no published engineering specification exists, the precise function of several reserved and n/c pins remains undocumented.
Signals
- REQ[A/B/C]# — active-low request lines, one per SCSI channel; arbitrate bus access between the onboard controller and the RAID card
- ACK[A/B/C]# — active-low acknowledge lines corresponding to each REQ channel
- LED[A]# — active-low drive activity LED signal for channel A
- CLK40 — 40 MHz bus clock supplied to the expansion card
- MRW — memory read/write direction control for the shared memory interface
- MD[0]–MD[7] — eight-bit bidirectional memory data bus
- MDP — memory data parity bit for the data bus
- MA[0]–MA[14] — fifteen-bit memory address bus
- RAMPS# — active-low RAM power/select signal; enables the expansion card’s local RAM
- RAMCS# — active-low RAM chip-select
- ROMCS[A]# — active-low ROM chip-select for the expansion card’s firmware ROM on channel A
- SY_RST# — active-low system reset; resets the expansion card logic
- IDDAT — identification data line; used during card detection or identification at initialisation
- PRSNT1 — card presence detect; indicates a RAIDport card is installed in the slot
- SEECS[A] — serial EEPROM chip-select for channel A; used to access configuration EEPROM on the expansion card
- RSVD — reserved; function not publicly documented
References
- SOYO SY-D6IBA motherboard manual (ManualsLib) — confirms 60-pin RAIDport slot for Adaptec ARO-1130 expansion cards with onboard AIC-7890/7895/7896 SCSI controller