PE2950 Won't Run Quad-Core CPU

[Tony van Lingen]

G'day,

The error says that you've got an unsupported COMBINATION of CPUs. You 
say that you replaced the 2nd CPU for a quad core (in the Dell quote). 
Maybe I'm wrong, but I'd think that you need to have similar CPUs? i.e. 
2 dual-cores or 2 quad-cores but not one dual-core and one quad-core.

If that's the case, it should also work fine with only the new CPU 
installed.

Cheers,
Tony

Chance Reschke wrote:
> Hi,
>
> Just today I swapped the CPU in one of our PE2950 hosts from the dual- 
> core it came with for a shiny new quad core.  Unfortunately, it  
> doesn't work.  Any help in getting this sorted out would be great.
>
> Details:
>
> The host has the II sticker on the front which Dell claims is the  
> badge of approval for quad-core compatibility.
>
> The original CPU was an Intel Xeon, model 5148  @ 2.33GHz and was  
> running fine under BIOS v1.02.
>
> The new CPU is an Intel Xeon, model 5355 @ 2.66Ghz.  The label on the  
> Dell anti-static bag it shipped in is GW622.
>
> The Dell quote for the new CPU said:
>
>    Quad Core Xeon 2nd Processor X5355 2x4MB Cache, 2.66GHz 1333MHz  
> FSB, PE2950, Customer Install (311-6970)
>
> When I powered up the host with the original BIOS it displayed the  
> correct CPU identification, then after performing the BMC  
> initialization, it complained in yellow text on a blue background:
>
>     Unsupported CPU Combination.
>     System Halted!
>
> I then upgraded the BIOS to 2.0.1 (required reinstalling the original  
> CPU), and tried again with the same results.
>
> Any ideas?
>
> Thanks,
>
> Chance
>
>
> --
> Chance Reschke
> Biochemistry Department
> University of Washington
>
>
>
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