Path: utzoo!utgpu!watmath!att!occrsh!uokmax!apple!gem.mps.ohio-state.edu!samsung!aplcen!jhunix!jheddy From: jheddy@jhunix.HCF.JHU.EDU (Jared Brennan) Newsgroups: comp.sys.atari.st Subject: Re: SH 204 Upgrade Summary: use a 5.25" half-height MFM ST512 drive Keywords: SH204 upgrade MFM ST512 5.25" half-height Message-ID: <3321@jhunix.HCF.JHU.EDU> Date: 17 Nov 89 06:03:42 GMT References: <1359@engage.enet.dec.com> Reply-To: jheddy@jhunix.UUCP (Jared Brennan) Organization: The Johns Hopkins University - HCF Lines: 20 The SH204 case will hold a 5.25" half-height hard drive, a type which is readily available from any manufacturer that makes hard drives. The drive must support MFM encoding and the ST512 interface. You can use a 3.5" hard drive in the SH204, but you must use brackets to expand the form-factor to that of a 5.25" drive; my SH204 had a Tandon TM263 3.5" drive mechanism, which was in a framework that fitted the drive into the 5.25" slot provided. Also, check the power supply in your SH204; I found a 40W supply in mine, which seems to be sufficient to power a Seagate ST251-1, the Adaptec 4000A SCSI controller, and ASCI-SCSI adapter. Anything below that wattage is not guaranteed to do the same . . . -- Jared Brennan BITNET: JHEDDY@JHUNIX,JHUVMS ARPA: jheddy%jhunix@hopkins.ARPA UUCP: allegra!hopkins!jhunix!jheddy "How many pins could one stick in the head of an angel?" -- Jared Brennan BITNET: JHEDDY@JHUNIX,JHUVMS ARPA: jheddy%jhunix@hopkins.ARPA UUCP: allegra!hopkins!jhunix!jheddy "How many pins could one stick in the head of an angel?"