[MLUG - DISCUSSION] Re: finding used RAM

[Mike Miller <EMAIL:PROTECTED>]

On Sat, 6 Jan 2007, Mike Miller wrote:

> > 256 MB - DIMM 168-PIN - SDRAM - 100 MHz - non-ECC
>
> I have an old mobo in the closet -- it has some RAM chips on it.  These say 
> the following:
>
> 256M SDRAM DIMM APC7610 PC-133 3
>
> I'm wondering if it is possible that these will work despite the 
> supposed requirement shown above.  Maybe P-C133 is faster than PC-100 
> and they will work.  Any idea?  If they fit in the slots, can I try 
> them, or is that risking serious damage?


I found something:

  http://www.dewassoc.com/performance/memory/pc100_std.htm

  Are different speed SDRAM backwards compatible?

  To a certain extent, yes. You can use PC133 memory in a PC100 system and
  you can use PC100 memory in a 66MHz system, subject to the
  specifications of the motherboard. However, the memory will only run as
  fast as (A) the capability of the motherboard, and (B) the slowest
  memory present in the system. As an example, a PC133 module will run at
  PC100 speed in a system with a 100MHz Bus, or if there is a *compatible
  PC100 module already present, it will only run at 100MHz.

Based on that, if I don't hear anything to the contrary, I'll try it and 
I'll tell you if it works.  I have two of these chips and they'll max out 
the memory of the old PC (Dell L800r).  Win XP should run a lot better 
after this because I think it only has 128MB RAM right now!  I use this PC 
on my stereo system.  It worked OK until I increased the size of the 
WinAmp Media Library and then memory limitations were all too obvious -- 
the database has about 62,000 songs in it.

Mike

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