Kimon Berlin <[EMAIL PROTECTED]> writes: > At 12:12 PM Tuesday 2002-09-24, Bob Drzyzgula wrote: > >Not that the 3.5GB thing is a surprise, but what chipset > >were they talking about? > > You'll run into something similar regardless of the chipset. 32-bit PCI cards > need MMIO below 4GB, so a chipset must provide a memory hole for them. > A "nice" chipset will allow you to remap the affected memory above 4GB, and a > "nice" operating system will allow you to use that remapped memory.
You can usually do a little better than 3.5GB if you only have a few pci cards or pci cards with a small mmio hole. With a single quadrics card plugged into the E7500 I can still keep my hole down to 3.5GB. As far as I know the E7500 is either the only, or at the very least one of the very first chipsets to offer a remapping ability. As far as accessing remapped memory. That is really dealing with memory about 4GB. Eric _______________________________________________ Linuxbios mailing list [EMAIL PROTECTED] http://www.clustermatic.org/mailman/listinfo/linuxbios
