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Author, George Walker
IDE Hard Disk * 40 pin header
| On the 80 wire connectors the following pins | |||||||||
| 1 | reset | 2 | ground | measured as common: 2,19,22,24,26,30,and 40 | |||||
| 3 | data 7 | 4 | data 8 | ( Motherboard, Gray and Black ) | |||||
| 5 | data 6 | 6 | data 9 | ||||||
| 7 | data 5 | 8 | data 10 | On the connector that connects to the Motherboard | |||||
| 9 | data 4 | 10 | data 11 | pin # 34 does not connect to the ribbon | |||||
| 11 | data 3 | 12 | data 12 | cable but is connected to common. Some cables | |||||
| 13 | data 2 | 14 | data 13 | have a hole in the cable as a way of disconnecting | |||||
| 15 | data 1 | 16 | data 14 | pin # 34 from the other two connectors. | |||||
| 17 | data 0 | 18 | data 15 | ||||||
| 19 | ground | 20 | n/c | On the middle (Gray) connector pin #28 | |||||
| 21 | n\c | 22 | ground | is not connected to the ribbon cable. (C/S Salve ) | |||||
| 23 | iow | 24 | ground | ||||||
| 25 | ior | 26 | ground | The extra 40 wires, one of which is inserted between | |||||
| 27 | n\c | 28 | bale | each data wire, are all connected in common | |||||
| 29 | n\c | 30 | ground | and are connected with 2,19,22 etc. on each connector | |||||
| 31 | idint | 32 | n\c | ||||||
| 33 | sa1 | 34 | n\c | On most IDE connectors on Hard drives and CD Rom | |||||
| 35 | sa0 | 36 | sa2 | drives Pin 20 is missing. | |||||
| 37 | cs5 | 38 | hcs1 | ||||||
| 39 | n\c | 40 | n\c | ||||||
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- Posted 07/29/2001; Updated 02/02/2003
