Compaq ProLiant 6400R dram above 4Gb [was Re: Intel SR1500AL doesn't see 4 GB]

[Rihad]

Lanny Baron wrote:
> Hi,
> If you install FreeBSD 6.2-AMD/64 you will be able to use all available 
> memory.
Thanks for the hint! This inspired my curiosity enough to try the 
boot-only image and see if it boots and runs at all, which it does 
perfectly! It turns out that "Intel(R) Xeon(R) CPU
 >>>> 5130  @ 2.00GHz (2002.99-MHz 686-class CPU)" can do the 64-bit 
thing (note the "5130" part) [*]. The time has come to say 32-bit only 
when meaning "not 64" :-) Goodbye, i386!

[*] http://processorfinder.intel.com/details.aspx?sspec=slagc

> Regards,
> +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=
> Lanny Baron
> FreeBSD Systems
> High Performance Servers and RAID Systems
> 
> Toll Free: 1.877.963.1900
> http://www.freebsdsystems.com
> +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=
> 
> 
> jonathan michaels wrote:
>> On Sat, Sep 01, 2007 at 12:02:55PM +0200, Bernd Walter wrote:
>>> On Fri, Aug 31, 2007 at 10:31:44PM +0500, Rihad wrote:
>>
>>>> I'm attempting to install FreeBSD 6.2 on Intel Server System 
>>>> SR1500AL with 4 gigs ram and CPU: Intel(R) Xeon(R) CPU            
>>>> 5130  @ 2.00GHz (2002.99-MHz 686-class CPU). The install goes OK, 
>>>> but FreeBSD doesn't recognize that there's 4 gigs of ram unless I 
>>>> rebuild the kernel with PAE enabled; it sees only ~2.5 gb otherwise. 
>>>> And there's a suspicious white line emmited during boot: like "1.5 
>>>> gigs above 4 were ignored". What's up with that? As I'm new to 
>>>> high-end hardware, am I using the right FreeBSD build of i386? Why 
>>>> can't it see 4 gigs without PAE?
>>> You only have 4g physical address space without PAE and your board takes
>>> 1.5G for memory mapping and such, so you only have 2.5G for RAM.
>>> Most boards just claim 0.5G, but 1.5G is not that unusual.
>>> Either use PAE, install amd64 if your CPU is 64bit capable or live with
>>> just 2.5G.
>>
>> I am in a similar position, except I recently upgraded my server (Compaq
>> ProLiant 6400R) by adding two more Xeon 500/100 Mhz L2 1 Mb and added 
>> 4 Gb
>> dram to the original 1512 Mb .. now I am in the same sort of position
>> with FreeBSD telling me that it will be ignoring the top 1512 Mb or
>> there abouts
>>
>>> There is no other option, since this is a hardware limitation.
>>
>> My Xeons are the 32 bit versions so I suppose that in my case I get to
>> use PAE ?? or do I loose the "top" 1512 Mb, or does my machine loose
>> that memory completely and I would be better moving it to another
>> machine ??
>>
>> thanks in advance
>>
>> most kind regards
>>
>> jonathan
>>
>