Re: The //gs's power supply ...

[pbauer@athena.mit.edu (Paul H Bauer)]

>: The GO drive that I installed internally in my GS has a peak start up power
>: of 685 mw and typical running power of 335 mw. This is all off of the 5 volt
>: supply. 13 watts off of a 5 volt supply would be about 2.6 amps and the
>: standard GS supply is rated at around 2,5 amps on the 5 volt supply I
>: believe.


>I would be interested in info on exactly what you did. I was thinking of this
>as a "cheaper" way to get an internal drive but since my external is doing
>fine I couldn't justify the expense. I take it you used a 2.5 inch drive?
>Considering the slightly higher price for these small drives how does the
>overall price compare to buying a Pegasus?
>
If you have to buy a new drive it may not be any cheaper. I found an add
from a person who had upgraded her power-book from a 40 to an 80meg hd and
had the old 40 meg drive for sale for $50. At that price I couldn't pass
it up because I had wanted to make this mod as an exercise for several
months and this provided the opertunity. I had an extra SCSI card (RamFast C)
and once I was able to get the pin-outs for the 2.5 drive (much different than
standard 3.5" SCSI drives and the 2mm connecters it was about a 2 hour job to 
make the installation including an external 25 pin D connector for connecting
other SCSI devices. The only caveat in this is the SCSI has to be able to 
recognize a drive that has not come up to speed when the computer is turned on
since the drive is running off the same power supply. The RamFast has this
capability as well as the older apple rev C SCSI cards I believe.
If anyone is interested in doing this I can provide them with the electrical
info for the 2.5" drives.
	The thanks for this info goes to a very helpful customer tech rep
at Quantum Hard drives.

	pbauer@mit.edu