Hello all, I have been using Suse Linux 10.1 (x84_64) on an Acer Aspire 5002 (amd64). I upgraded my RAM recently to 1 GB. But after booting if i check the meminfo ... I was stunned to see only ~ 876 MB shown in under /proc/meminfo.

From Googling ... I found out that HIGHMEM is enabled upto 4GB and this uses up 128 MB for some virtual memory mapping. However this is applicable only to x86 and not my laptop.

Output of /proc/meminfo: MemTotal: 897788 kB ~ 876.74609375 MemFree: 297824 kB Buffers: 49688 kB Cached: 387296 kB SwapCached: 0 kB Active: 258160 kB Inactive: 289436 kB HighTotal: 0 kB HighFree: 0 kB LowTotal: 897788 kB LowFree: 297824 kB SwapTotal: 1060280 kB SwapFree: 1060280 kB Dirty: 84 kB Writeback: 0 kB Mapped: 184180 kB Slab: 32384 kB CommitLimit: 1509172 kB Committed_AS: 252224 kB PageTables: 5480 kB VmallocTotal: 34359738367 kB VmallocUsed: 9260 kB VmallocChunk: 34359728159 kB HugePages_Total: 0 HugePages_Free: 0 Hugepagesize: 2048 kB The on board AGP card on the laptop consumes 64MB. Following is the information I see from dmesg: Linux version 2.6.16.13-4-default (geeko@buildhost) (gcc version 4.1.0 (SUSE Linux)) #1 Wed May 3 04:53:23 UTC 2006 BIOS-provided physical RAM map: BIOS-e820: 0000000000000000 - 000000000009f400 (usable) BIOS-e820: 000000000009f400 - 00000000000a0000 (reserved) BIOS-e820: 00000000000dc000 - 0000000000100000 (reserved) BIOS-e820: 0000000000100000 - 000000003bef0000 (usable) BIOS-e820: 000000003bef0000 - 000000003befa000 (ACPI data) BIOS-e820: 000000003befa000 - 000000003bf00000 (ACPI NVS) BIOS-e820: 000000003bf00000 - 0000000040000000 (reserved) BIOS-e820: 00000000fff00000 - 0000000100000000 (reserved) ACPI: RSDP (v000 PTLTD ) @ 0x00000000000f7f60 ACPI: RSDT (v001 PTLTD RSDT 0x06040000 LTP 0x00000000) @ 0x000000003bef61be ACPI: FADT (v001 SiS 755F 0x06040000 PTL 0x000f4240) @ 0x000000003bef9e5f ACPI: SSDT (v001 PTLTD POWERNOW 0x06040000 LTP 0x00000001) @ 0x000000003bef9ed3 ACPI: MADT (v001 PTLTD APIC 0x06040000 LTP 0x00000000) @ 0x000000003bef9f88 ACPI: BOOT (v001 PTLTD $SBFTBL$ 0x06040000 LTP 0x00000001) @ 0x000000003bef9fd8 ACPI: DSDT (v001 PTLTD 755 0x06040000 MSFT 0x0100000e) @ 0x0000000000000000 On node 0 totalpages: 241214 DMA zone: 3122 pages, LIFO batch:0 DMA32 zone: 238092 pages, LIFO batch:31 Normal zone: 0 pages, LIFO batch:0 HighMem zone: 0 pages, LIFO batch:0 ... .... ... ... Inode-cache hash table entries: 65536 (order: 7, 524288 bytes) Memory: 894636k/981952k available (1728k kernel code, 86400k reserved, 767k data, 164k init) Calibrating delay using timer specific routine.. 3203.81 BogoMIPS (lpj=6407638) Security Framework v1.0.0 initialized Mount-cache hash table entries: 256 CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line) CPU: L2 Cache: 1024K (64 bytes/line) CPU: AMD Turion(tm) 64 Mobile Technology ML-30 stepping 02 checking if image is initramfs... it is Freeing initrd memory: 2456k freed Is there anyway I can use the complete 1GB of RAM .. Thanks in Advance, -- Best Regardz, Guru