PCBUILD Archives

Personal Computer Hardware discussion List

PCBUILD@LISTSERV.ICORS.ORG

Options: Use Forum View

Use Monospaced Font
Show Text Part by Default
Show All Mail Headers

Message: [<< First] [< Prev] [Next >] [Last >>]
Topic: [<< First] [< Prev] [Next >] [Last >>]
Author: [<< First] [< Prev] [Next >] [Last >>]

Print Reply
Subject:
From:
Stanislav Rabinovich <[log in to unmask]>
Reply To:
PCBUILD - Personal Computer Hardware discussion List <[log in to unmask]>
Date:
Tue, 17 Jul 2001 22:34:23 -0400
Content-Type:
text/plain
Parts/Attachments:
text/plain (56 lines)
Hi Todd Gruhn!   At 09:19 AM 7/17/01 -0500 you wrote:
 >"Registered" DIMMs use ECC (Error-Correcting Code) which is equivalent to
 >Parity in the days of SIMMs.  As for the original post, registered ECC
 >DIMMs will not run with non-parity DIMMs.  The only reason that anyone
 >would need ECC is in a server or other critical environment.  In fact, ECC
 >memory can slow down desktop systems up to 2%.
 >
 >The PC label is the recommended speed that the memory is rated to run at.
 >(Ex: PC-133 on 133MHz FSB)  PC-xxx memory is not IBM-compatible limited.
 >The newest Power Macintosh G4 systems use PC-133 memory, and Macs have used
 >SDRAM since the days of the 8600/9600.
 >
 >Todd M. Gruhn
 >
 >
 >>  >I thought the mention of 'registered' ram in your post was important.
 >The
 >>  >following was cut from the Kingston.com website.
 >>
 >> Hmm, since manual writes:
 >> "256 MB memory modules only available on PC registered DIMM"
 >> I thought that it means they should be designed for PC
 >> (let say not for Macs). All my modules have "PC" label: PC-100 or PC-133.
 >>
 >> Am I wrong with that understanding of "PC registered" ?

Ok, thanks to everyone who wrote me via the list or directly.
Now it is clear. If I still want to have 512mb I need to buy
another registered module 256 mb.
Today I was shocked...
I went to the same store (Office Depot) and bought the same
box with Value Ram by Kingston 256 mb memory module.
When I put it in my computer I observed that it is just 128 mb
in spite of label "256". Also there was just single side mounting
but my first Kingston module has two side mounting...
I went to this store again and change it to another box,explaining
that it was manufacture mistake and asking to open it right there,
in the store... The new module was again single side mounted.
We opened one more. The same. I got my money back.

Now I want to buy some another "brand", not the Kingston.

There was nothing about registering, ECC, or parity control or
buffering on the Kingston box. The sale persons know nothing about
that either.
How to know is the module registered ?

Thanks again for your help,

--
Stanislav Rabinovich

                  Visit our website regularly for FAQs,
               articles, how-to's, tech tips and much more
                          http://freepctech.com

ATOM RSS1 RSS2