Hardware Question

[Travis Roy]

Dan Jenkins wrote:
> On Thu, 8 Apr 2004, Matt Brodeur wrote:
> 
> 
>>-----BEGIN PGP SIGNED MESSAGE-----
>>On Thu, Apr 08, 2004 at 10:17:12AM -0400, Tom Buskey wrote:
>>
>>
>>>I've found PC133 ram and PC100 ram are not interchangeable.  If you have a
>>>100Mhz system, you can't put PC133 ram in it.
>>
>>   Huh?  I do this all the time.  The reverse is definately true, but
>>I can't remember ever having problems underclocking memory.  I'm
>>pretty sure I've even run PC133 in a PC66 system.
>>   It is of course possible for a system to detect the memory type and
>>refuse to use something it thinks is too fast.  I haven't seen it
>>(again, only the reverse), but that may be what you've run in to before.
> 
> 
> Good timing. I happen to be at a client now to do, among other things,
> memory upgrades. PC133 RAM will definitely not work in older model (circa
> 1999) IBM systems. I have found the same problem in Gateway systems.
> 
> I have also had PC133 work perfectly well in older systems. So, it varies
> from system to system.

Also keep in mind that it matters if it's single or dual sided ram 
(chips on the card). I've found that not all boards can take single 
sided ram.