re help internal hds in mac ii in article apr siemens co at kurt netzer kurt siemens co at writes is it possible to install a nd mb hd in a mac ii with a mb qunatum hd can i us a pin cable with connectors for the internal motherboard scsi connector and the scsi hd connectors the first hd is nt terminated the second will be whats about the power supply where can i connect a amp connector to supply my hd it is very possible to connect another internal hard disk in any macintosh if you can find the space to put it i have a iisi that came with a quantum meg drive when i ran into space problems i slapped in another meg quantum that i had sitting on a shelf here is what i did first off i was concerned about space since both drives are quantum quarter height drives i finally decided that the logical place for them was stacked one upon the other fine they fit snugly i have not had a problem with heat yet and these drives have been running together for over two months the next problem was connecting the drive if you have a spare internal hard disk power cable as i did then half of your troubles are over just splice in the extra cable so that you get one square motherboard connector and two hard disk power connectors if you don t have a spare cable you will have to buy the wires and connectors which can be found in any good electronics store for about i would suggest properly soldering heatshrinking the connections to reduce the possibility of shorts or bad connections next you need a ribbon cable connection again i had a spare hard disk ribbon cable and i wanted to be careful in case this didn t word so what i did was purchase a crimp on pin cable connector that gave me another male connector in the middle of my spare cable the part cost again and is easily attached with any good wood vice the theory behind using a crimp on connector is that if this doesn t work my original cable is not damaged and i can go back to the original setup having done all that i couldn t be bothered to check the dev notes for power consumption so i plugged it in and it works like a charm to this day in a mac ii everything should work the same be careful with the id s of the drive and ensure that the terminating resistors on both drives are intact i did not try this without the terminating resistors but it seemed logical that if i am splitting the scsi chain that the signal should be terminated at all the ends let me know if you have any more questions peter hansen bell northern research pgmoffc bnr ca
