[cisco-voip] CM5 hardware requirements

[Constel]

I have a MCS-7835-1266 for lab tests (PIII, 2x  18,2Gb SCSI, 1Gb Mem).
I would like to install CM 5.x to make some tests on a lab environment, but 
I got the following message during set up:
"The hardware you are using is not supported for this product".

I understand this hardware is old and I should use a newer one, but for lab 
purposes I think that's enough.
The question is: Is there any way to do this (I mean install cm 5.x on this 
hardware) even upgrading hardware, or should I give up?

I couldn't find any paper explaining which MCS part number can be used to 
install CM5. Is there one?
I found just this, but it isn't exactly what I need:
http://www.cisco.com/en/US/partner/products/sw/voicesw/ps556/prod_bulletin0900aecd80284099.html

thanks in advance,