RE: DIMM in model 170

["Maarten Vries, de" <m_devries74@xxxxxxxxxxx>]

John

Thank you, it was more my model 170 at home. I have 256 main storage 
installed and I will be running Java very soon. But for a single user this 
should more than enough I hope

Maarten


>From: John Myers - MM <jmyersmm@sbsusa.com>
>Reply-To: MIDRANGE-L@midrange.com
>To: MIDRANGE-L@midrange.com
>Subject: RE: DIMM in model 170
>Date: Wed, 03 Jan 2001 16:23:48 -0500
>
>It's NOT the same memory that is in commodity desktop PC's.  It has Error
>Detecting & Correcting logic built into it so that if there is a bit-level
>error in the memory, it detects it & still supplies the correct response.
>
>I once knew the details of these "grey codes" that did this ... It is
>similar in concept to the Raid-5 protection for disk drives.  My Thinkpad
>w/NT occasionally gets these single-bit errors & it kills the application
>(under Win95, it gave the blue screen of death).
>
>If you buy a "high-end" PC server, you MIGHT find similar memory
>cards.  These cards will cost about the same $$$ as those in your AS/400
>though.
>
>You will be MUCH better off just installing the IBM memory ... we recently
>installed a model 270 iSeries w/ 2gb of RAM and I seem to remember that the
>memory upgrade cost about two grand more.  I'm willing to pay that much to
>get a LOT of memory (the cheapest way to goose AS/400 performance) that
>always works.  Whenever you install a third party product, you are setting
>yourself up for trouble ... for $2K, it's just not worth it!
>
>John Myers
>IBM Certified Specialist - AS/400 Technical Solutions
>IBM Certified Specialist - Advisor for e-Business
>Strategic Business Systems, Inc.
>17 S. Franklin Turnpike, Ramsey, NJ 07446  USA
>E-mail: mailto:jmyers@sbsusa.com   Phone: +1 (201) EASY 400   x131
>Web:    http://www.sbsusa.com      Fax:   +1 (201) 327-6984
>
>Free Sports League Management - Powered by AS/400
>      http://www.ScoreBook.com
>
>Get and route intelligence from your IBM AS/400 web site - WebSurvey/400
>      http://www.WebSurvey400.com
>
>Systems supporting the distribution operations of Motor Vehicle 
>manufacturers
>     http://www.VehicleSystem.com
>
>At 11:07 AM 1/3/01, you wrote:
>>I asked this question during a presentation at Common in Germany.  Of the
>>several dozen people in the room, no one had the guts to test the theory.
>>
>>My guess is that they are somehow different.  Since 256MB for my 170 cost 
>>me
>>over $2k and the same memory at the time for my PC would have cost me 
>>about
>>$300, I sure HOPE there's a reason.
>>
>>But..  would you test your $2K memory in your PC and risk frying it?  Or,
>>would you risk your $20K 170 with PC memory.  Worse - would you trust
>>running your nice stable 170 with cheap PC memory?
>>
>>I'd be curious of anyone knows for sure...
>>
>>-----Original Message-----
>>From: owner-midrange-l@midrange.com
>>[mailto:owner-midrange-l@midrange.com]On Behalf Of Maarten Vries, de
>>Sent: Tuesday, January 02, 2001 4:05 PM
>>To: MIDRANGE-L@midrange.com
>>Subject: DIMM in model 170
>>
>>Hi
>>
>>I am new to this list.
>>I want to upgrade my model 170 with some extra memory.
>>I have seen from the system handbook that the model 170 contains DIMM
>>modules. Are these the same modules you put in your PC or is it special
>>memory?
>>
>>Maarten
>
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