[ILUG] bad memory..

[Dermot Gorman]

Hi ,
In recently bought an extra 128Mb SD-RAM (133Mhz) to add to the 128Mb
(100Mhz) I already have. However, the system is now unstable and does
everything from locking up to completely rebooting itself. I have tried
fiddling with the BIOS settings to set the RAM speed to 100Mhz. This did
no good. Without the RAM the system is ok and never crashes. Any
solutions? Is it ok to mix RAM speeds? Or is the new RAM i bought from a
dodgy manufacturer?
kernel 2.4., redhat 7.1

dermot