Hi, I just upgraded the BIOS of my A8V deluxe to the newest version (1014) und tried to boot with the Suse 9.3 Live-CD, distributed by the German magazine c't. If I activate "software memory hole" in the BIOS, I see only 3GB (with the "free" comand and also inside the BIOS system information) despite 4GB of physical RAM installed. dmesg says this: Linux version 2.6.11.4-20a-default (geeko@buildhost) (gcc version 3.3.5 20050117 (prerelease) (SUSE Linux)) #1 Wed Mar 23 21:52:37 UTC 2005 BIOS-provided physical RAM map: BIOS-e820: 0000000000000000 - 000000000009fc00 (usable) BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved) BIOS-e820: 00000000000e4000 - 0000000000100000 (reserved) BIOS-e820: 0000000000100000 - 00000000bffb0000 (usable) BIOS-e820: 00000000bffb0000 - 00000000bffc0000 (ACPI data) BIOS-e820: 00000000bffc0000 - 00000000bfff0000 (ACPI NVS) BIOS-e820: 00000000bfff0000 - 00000000c0000000 (reserved) BIOS-e820: 00000000ff780000 - 0000000100000000 (reserved) BIOS-e820: 0000000100000000 - 0000000140000000 (usable) Warning only 4GB will be used. Use a PAE enabled kernel. 3200MB HIGHMEM available. 896MB LOWMEM available. Just as clarification of terms: - What is HIGHMEM and LOWMEM and shouldn't they be called the other way round as the big part is counted from 0x00000000 on? - Isn't PAE for 32bit OS only (I booted the 64bit version)? So after all, would a full 64bit installation of 9.3 install a "PAE enabled kernel", so that I would see all 4GB of installed RAM? Is this a special choice then or simply the standard kernel? Thanks in advance for your help! Ciao Siegbert