[comp.sys.mac.hardware] IIcx hard drive not spinning up on cold start, but...

Cherry@Frodo.MGH.Harvard.EDU (J. Michael Cherry) (03/06/91)

I've got two Macintosh IIcx systems with 40MB hard drives that on occasion 
do not spin up on a cold start. Continually turning off and then turning 
on the power has no effect. Both systems have 40MB drives, one is a Sony 
drive the other I'm not sure - I haven't looked. This problem occurs every 
couple of weeks on these two systems, I've got ten other IIcx systems that 
do not have this problem. The odd thing is that I can always start the 
disk spinning by rapping on the side of the Macintosh or by opening the 
Mac and tapping the drive. Is this a known problem with some of the Apple 
provided hard drives? Our dealer didn't know of any problems with IIcx 
40MB drives. Both systems are still under warrenty so I guess I'll wait 
until it happens again and call in the dealer to replace the drives. Any 
thoughts?

Thanks,
Mike Cherry
cherry@frodo.mgh.harvard.edu
Department of Molecular Biology
Massachusetts General Hospital, Boston
617-726-5955

craparotta@craparotta.enet.dec.com (Joe Craparotta) (03/06/91)

Mike,

I know that the Quantum drives had this problem and on both the 40 and 80 
meg models...I'm not so sure about the Sony drives though.. Tell your 
dealer to look on page 8.7.1 of his Apple Service Program manual.. It 
states that you can get a ROM change to correct the problem (if its a 
quantum). Hope this helps...

Joe Craparotta	Craparotta@level.dec.com
		--or-- ...!decwrl!level.dec.com!craparotta
		--or-- craparotta%level.dec@decwrl.dec.com

discalimer: The above are my Personal views and do NOT represent those of my 
EMPLOYER.. They don't listen to me anyway.. :-))