4GB ram in PE44

[Grzegorz Sójka]

Hi there.

I have a problem with PowerEdge 4400 equiped with two P3 Xeon 866Mhz
CPUs. I just both 8x512MB PC133 ECC-R and installed it in my server.
BIOS claims that there is 4096MB RAM installed on the system which I
believe to be true. Moreover in
http://support.dell.com/support/edocs/systems/pe4400/en/ug/techspec.htm
we read that it supports up to 4GB. Unfortunately both mpmemory and my
linux claim that there is only 3.5GB memory in the system. In dmesg we read:

Linux version 2.6.16.45-1smp (builder at aksjomat) (gcc version 3.3.6 (PLD
Linux)) #1 SMP Wed Mar 28 03:22:39 CEST 2007
BIOS-provided physical RAM map:
 BIOS-e820: 0000000000000000 - 00000000000a0000 (usable)
 BIOS-e820: 0000000000100000 - 00000000dfffe000 (usable)
 BIOS-e820: 00000000dfffe000 - 00000000e0000000 (reserved)
 BIOS-e820: 00000000fec00000 - 00000000fec10000 (reserved)
 BIOS-e820: 00000000fee00000 - 00000000fee10000 (reserved)
 BIOS-e820: 00000000fff80000 - 0000000100000000 (reserved)
2687MB HIGHMEM available.
896MB LOWMEM available.
found SMP MP-table at 000fe710
On node 0 totalpages: 917502
  DMA zone: 4096 pages, LIFO batch:0
  DMA32 zone: 0 pages, LIFO batch:0
  Normal zone: 225280 pages, LIFO batch:31
  HighMem zone: 688126 pages, LIFO batch:31

My question is : _WTF_??_ Is there way to force linux to use 4GB? Should
I recompile the kernel or maybe change some option in setup menu??

Thanks in advance for any help.

Best regards.

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