"Hugo" wrote in message
...
Hi my pc uses pc100 ram, i have 2 slots , that occupy 2 sticks of 64mb
totaling 128mb, recently i recieved a 128 mb of ram stick the only
problem
its pc133, the 1st thing i tried is taking out all of the ram i have in my
pc and install only the new pc133 stick, it did not work, second thing i
did
is leave on of the 64mb of ram pc100 in the slot , and in the remaining
slot insert the pc133 ram, did not recognize the pc133, and then i tried a
combination of swiching ram positions. Can some one tell me if this is
even
possible, or should i just sell this pc133 of ram on ebay, thanks in
advance.

Let me guess, the new PC-133 stick has 4 chips on it, and your existing ones
have 8 chips? If so, it's a common problem I have run into in both PC-100
and PC-133 SDRAM modules lately, and older systems, especially those with
the old 440BX chipset, and the 810/815 chipsets. Your system may well
support PC-100 or PC-133 modules in 128MB capacities, but some older
motherboard chipsets do not support the newer 256Mbit density chips commonly
being used today. On a 128MB module that uses 4 256Mbit chips, each chip is
32MB for a total of 128MB. The older 128MB modules with 128Mbit densities
had 16MB per chip, and used 8 chips for a total of 128MB. The best advice I
can give you is to go to Crucial.com and plug your model# into their
configuration matrix, and let them select the proper type of module(s) for
your system, then purchase it. More than likely you will see a warning
message that your system takes a specific type of SDRAM module. Looking up
the specs on your machine reveals that it does indeed use an Intel 810
chipset, and thus needs modules with 128Mbit chip density. If you don't
order from crucial, look for modules with 8 chips on them.