pwr1@cunixf.cc.columbia.edu (Paul Wilbur Romaine) (07/25/90)
I have a dual disk drive ZF-148 with the optional daughterboard which enables use of a single expansion slot. (The ZF-148 is an older low profile machine with little expandability.) I'd like to install a hard disk but am unsure whether the 65 watt (non-replaceable) power supply could handle one. I've heard that some of the newer 3.5" half-height hard drives draw less power but haven't confirmed. 1. Has anyone else upgraded (or knows someone who has) a ZF-148 to a hard disk? Can it be done? 2. Do the higher speed hard disks consume more power than lower speed (say, 65ms vs. 28ms). Specifications: ZF-148, 640K, 2 disk drives (1 to go), serial mouse. I don't know how much power each of these consumes. Everything else has its own power source. Thanks for any help. Paul W. Romaine pwr1@cunixf.cc.columbia.edu Columbia University Law Library
MICHAEL_DUANE_SETZER@cup.portal.com (07/26/90)
I have 10 Z-148s in my computer lab at school, and we added 30 meg St-238 drive to them about 3 years ago, and have had no problems with them. We got 2 slot daughter cards, and have recently added NE-1000 ethernet cards to them, again with no problem. So, at least with the ST-238s, they seem to work fine. Michael Setzer II, Computer Science Instructor, GUAM
wdh@hrshcx.csd.harris.com (W. David Higgins) (07/29/90)
In article <32104@cup.portal.com> MICHAEL_DUANE_SETZER@cup.portal.com writes: >I have 10 Z-148s in my computer lab at school, and we added 30 meg St-238 >drive to them about 3 years ago, and have had no problems with them. We >got 2 slot daughter cards, and have recently added NE-1000 ethernet cards >to them, again with no problem. So, at least with the ST-238s, they seem >to work fine. Michael Setzer II, Computer Science Instructor, GUAM I seem to remember a problem retrofitting hard disks to the Z148 where the BIOS on prom didn't understand hard disks. True, or is my memory faulty? A relative of mine also wants to add a hard disk to his H-148. -- -- W. David Higgins (hrshcx!wdh) -- Harris Computer Systems, Ft. Lauderdale, FL 33309 305-973-5351
kent@wasp.eng.ufl.edu (Kent Phelps) (07/30/90)
> >I seem to remember a problem retrofitting hard disks to the Z148 where >the BIOS on prom didn't understand hard disks. True, or is my memory >faulty? A relative of mine also wants to add a hard disk to his H-148. > > >-- >-- W. David Higgins (hrshcx!wdh) >-- Harris Computer Systems, Ft. Lauderdale, FL 33309 305-973-5351 Yes it is true. I forgot to mention that when I replied to someone from Columbia whose name and address I don't remember so I hope they see this. The hard drive will work but you can't boot from it until you upgrade the BIOS. ZDS part number is 444-380-xx where xx is the latest revision. -- Kent Phelps | Internet: kent@sun.ufnet.ufl.edu University of Florida | kent@digital.ufl.edu Digital Design Facility | Phone:904-392-2464 ***** Just say Yo ! *****