> Hi all,
> I have an old QDI VL/ISA-PB486P3 VLB motherboard that I'd like to
> use for something respectable.
> This board boots but has no L2 cache (like me). The sockets (4+4+1)
> are there but empty. The jumpers indicate the board can handle 128,
> 256, or 512K of L2.
> How does one go about installing L2 cache? Where can I find
> installation instructions? Where can I find out what the right chips
> for this board are? Where can I buy them - cheap? Can I just pull
> chips off another 486 mainboard and install them in this one?
Should be sockets on the motherboard... if not, then you're probably
not going to be able to install any. I did a Google search for
QDI PB486P3 and found:
This is similar to the text doc I found for my Packard Bell unit.
This should be enought for you to find the right cache chips
for your motherboard.
Cheap?... probably not. About a year ago I resurrected a 486SX
by adding 20M of memory and maxing out the cache... all in all,
probably spent $150 on that.... definitely not the kind of money
you want to spend... most people will give away a better machine
than that... but it was fun anyway.
It may be possible to get the chips from another 486. Use the
doc above... may need some info from the machine you're pulling
from as well.
> There doesn't seem to be very much information about cache on the
> net beyond definitions. I suppose that's because L2 is now getting
> built into the CPUs. All help appreciated,
First thing Google came up with on a search for 486 cache memory
I cannot remember the vendor I got mine through... there are many out
there, I just went with the lowest price.