Hi,
I've recently got a few Dell PowerEdge 2850 machines with 4 GB RAM to
build a new database cluster. However, unlike our existing PowerEdge
2650 machines, they're only recognising about 3.25 GB. The machines
are pretty much standard, with no extra cards (just the built-in
MegaRAID).
As a last resort, I've tried rebuilding the kernel with
MAXMEM=(4*1024*1024), which produces some really fun crashes (which I
can supply if necessary). The BIOS seems to be devoid of anything
remotely useful to tweak.
Any ideas?
Here's a dmesg from the non-crashing kernel: [note, the first line is
from memory and might be incorrect]
786426K of memory above 4GB ignored
Copyright (c) 1992-2004 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
The Regents of the University of California. All rights
reserved.
FreeBSD 5.3-RELEASE #1: Wed Oct 27 15:39:35 BST 2004
[EMAIL PROTECTED]:/usr/src/sys/i386/compile/PE2850_2
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: Intel(R) Xeon(TM) CPU 2.80GHz (2793.01-MHz 686-class CPU)
Origin = "GenuineIntel" Id = 0xf34 Stepping = 4
Features=0xbfebfbff
real memory = 3489398784 (3327 MB)
avail memory = 3418533888 (3260 MB)
ACPI APIC Table:
FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
cpu0 (BSP): APIC ID: 0
cpu1 (AP): APIC ID: 6
ioapic0: Changing APIC ID to 7
ioapic1: Changing APIC ID to 8
ioapic1: WARNING: intbase 32 != expected base 24
ioapic2: Changing APIC ID to 9
ioapic2: WARNING: intbase 64 != expected base 56
ioapic3: Changing APIC ID to 10
ioapic3: WARNING: intbase 96 != expected base 88
ioapic0 irqs 0-23 on motherboard
ioapic1 irqs 32-55 on motherboard
ioapic2 irqs 64-87 on motherboard
ioapic3 irqs 96-119 on motherboard
Thanks,
--
Tom Gidden
Lonres.com Limited
t: 020 7924 6622
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