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- Newsgroups: comp.sys.atari.st
- Path: sparky!uunet!cs.utexas.edu!wupost!sdd.hp.com!hpscit.sc.hp.com!news.dtc.hp.com!srgenprp!randyh
- From: randyh@sad.hp.com (Randy Hosler)
- Subject: JRI simm upgrade questions
- Sender: news@srgenprp.sr.hp.com (placeholder for future)
- Message-ID: <Bz4BoE.7up@srgenprp.sr.hp.com>
- Date: Fri, 11 Dec 1992 23:24:13 GMT
- Organization: HP Sonoma County (SRSD/MWTD/MID)
- X-Newsreader: TIN [version 1.1.4 PL6]
- Lines: 23
-
- [ Article crossposted from comp.sys.atari.st.tech ]
- [ Author was Randy Hosler ]
- [ Posted on Tue, 8 Dec 1992 17:09:57 GMT ]
-
- Hello all,
-
- I recently became the owner of a 520ST upgraded to 2.5 megs and TOS 1.4.
- Last night I opened up the box to do the Overscan mod and discovered that
- my 520ST had the JRI simm memory upgrade. I have no documentation on it
- and so am hoping that someone out there can answer my questions.
-
- I want to add another 2 megs of simms. How do I disable the 1/2 meg that's
- on the motherboard? I saw one jumper on the board that plugs into the
- video shifter. Do I need to remove it to add the extra ram?
-
- Also there is an extra video shifter socket. What's the story on this?
- Do I just plug in another shifter for the larger palette or do I need
- some software to enable it?
-
- Please post or email any and all information you may have about this upgrade.
-
- Thanks, Randy Hosler
-
-