Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!uakari.primate.wisc.edu!aplcen!aplcomm!uunet!srg!doconnor From: doconnor@srg.UUCP (Dennis O'Connor x4982 room 6-230N) Newsgroups: comp.sys.amiga.hardware Subject: Re: What RAM for A3000? Message-ID: Date: 17 Jun 91 12:45:57 GMT References: <460.2857c586@beach.gal.utexas.edu> Sender: news@srg.uucp (News Administrator) Organization: Some Lines: 39 In-Reply-To: mrimages@beach.gal.utexas.edu's message of 14 Jun 91 01:20:38 GMT mrimages@beach.gal.utexas.edu writes: ] ] In anticipation of receipt of my new A3000, I was wondering if someone ] could answer some simple questions: ] 1) What RAM chips are recommended for the A3000? The A3000 manual lists applicable chip numbers from several manufacturers. Sorry, don't have it here. ] 2) In what increments must I add the RAM? CHIP RAM is expandable in 1Megabyte increments, so you get 1Meg initially and can add 1Meg more. FAST RAM is more complicated. FAST RAM can either take 1Mbit chips ( 256Kx4 ) or 4Mbit chips ( 1Mx4 ), but not both at once on the motherboard. What does this mean ? If you buy a 3000-16/50 or 3000-25/50 you get 1Meg of FAST RAM. SO you could expand it in 1 megabyte increments. Or you could take the 1 megabyte of FAST RAM out and put it in CHIP RAM ( givinig you 2M of CHIP ) and expand your FAST RAM in 4 megabyte increments using 4Mbit chips. Your maximum motherboard memory using 1megabit chips is 6Meg, with 4Mbit chips it is 18Meg. If you buy a A3000-25/100, you start with 5 megabytes of memory : 1 megabyte CHIP and 4 megabytes FAST. I'm reliably informed that the supplied FAST RAM is 4Mbit chips, so on an A3000-25/100, you can increase your CHIP RAM in 1 megabyte increments and increase your FAST RAM in 4 megabyte increments. Your maximum motherboard memory is 18Meg. ] 3) Where's the best place to get a good deal on these chips? My dealer will do a 4 megabyte upgrade for me for $400. Maybe this isn't the best deal you could get, but I remember when RAM went through the $1000/megabyte level, so $100/megabyte seems good to me. -- -- Dennis O'Connor, uunet!srg!titania!doconnor non-representative.