Re: Weird memory detection problem on Compaq M700

[Phil Schulz]

Christopher Smith wrote:
[...]
I have a Compaq Armada M700 that I used for a firewall.  I've recently
upgraded the memory in it to 320MB (64MB onboard + 256MB).  The machine
detects the memory fine.  The FreeBSD bootloader detects the memory fine.
However, when the kernel boots it only detects 64MB.
I don't know if this is related but I'll post anyways hoping to help you.
I have an older Armada laptop which has the same problem, however it's 
running OpenBSD. I remember reading that the BIOS of the laptop wouldn't 
announce the right amount of physical memory to the kernel. The solution 
 (for OpenBSD) is to add a line that reads
	machine mem [EMAIL PROTECTED]
to /etc/boot.conf - Note that this is for 32MB onboard + 32MB in the 
add. slot.

[...]
I realise I can use options MAXMEM to manually specify the amount of RAM
in the machine, but it just struck me as rather strange that it detects
192MB fine but not 320MB (particularly since the bootloader sees it all).
Try it. See if it works. I think it's pretty much the same thing I did 
with my OpenBSD laptop.

Regards,
Phil.
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Weird memory detection problem on Compaq M700

[Christopher Smith]

Apologies for the cross-post - this is mainly a hardware problem, but I've
thrown it into -questions as well in case someone has already seen and fixed
this issue.

I have a Compaq Armada M700 that I used for a firewall.  I've recently
upgraded the memory in it to 320MB (64MB onboard + 256MB).  The machine
detects the memory fine.  The FreeBSD bootloader detects the memory fine.
However, when the kernel boots it only detects 64MB.

What's weird, is that if I stick in a 128MB memory module then the kernel
detects the full amount (192MB) fine.

I realise I can use options MAXMEM to manually specify the amount of RAM
in the machine, but it just struck me as rather strange that it detects
192MB fine but not 320MB (particularly since the bootloader sees it all).

This is with FreeBSD 5.2.1.  I've not tried it with 4.x.

Has anyone else encountered this problem (and maybe fixed it) ?

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