Hardware Question

[Tom Buskey]

> 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.

The more I work with PC hardware, the more I like Sun hardware ;-)

I have an oldish server (gateway mumble dual PII 400MHz) that won't boot
with some hard drives. It's fine with the ones I have in it, but failed
booting off an old 1GB drive I was testing with.

At least some of the RAM simms are labeled w/ sizes & part numbers these
days.  I have a bunch I labeled by booting up & seeing what got
recognized.