Dual Xeon Matching Question

[QuadaconV2]

Hi, I have ordered a second Xeon E5540 CPU for my Server Motherboard which already has one E5540. The Second CPU which is currently on its way is the SLBF6 S-Spec. However, I am having trouble finding the S-Spec of my current model. I know its stepping is D0, and it is a Gainstown core. My concern is that the spec for the SLBF6 shows a core that is Nahalem based. my CPU-Z is showing Gainstown, and the letters SLBF6 are not present anywhere.

 

Will these two CPU's work together? they are the same family, model, frequency, even stepping... but they have a (presumably) different S-Spec. Will they work together?. The server I am using is retired, so it is not being used for any mission critical processes, its more of a hobby machine at this stage.

 

Thank you for your time!

[BubblyCharizard]

only 1 way to find out....

[LucasRem]

 sSpec numbers need to be identical, HP, Lenovo, Dell, they all say the same, intel too, even if stepping and  clock speed are identical. never tried it my self, that sSpec is the only measurement i follow on multi socket boards.

 

http://processorfinder.intel.com/scripts/list.asp?ProcFam=528.

 

Just run it on some LGA1366 $50 board if that sSpec is not the same, some cheap WS build for running processes. 

[QuadaconV2]

7 minutes ago, LucasRem said:

sSpec numbers need to be identical

Thank you for your reply. Could you tell me what exactly an sSpec is? I have seen others on other forums who claim that ONLY the CPU family has to be the same. While I do not believe this (in that I am aware that dual CPU's must match a very specific criteria), I do not understand exactly why the sSpec must match, is there a physical difference between different sSpecs?

 

Also, the SLBF6 appears to be the consumer release E5540. All other sSpecs are engineering samples. How could my retired DELL motherboard possibly have an engineering sample CPU? Again, my CPU-z is showing Gainstown, not Nahalem, which has confused me (from my research, Gainstown appears to be a different S-Spec)

Thanks again.

[LucasRem]

Sending you a dead link is not helping you, 

https://www.intel.com/content/www/us/en/support/processors/000007490.html?wapkw=sspec

 

intel is not very good in telling were they stand for, i ques it's a hard coded digit meant for more then just a similar speed and stepping, could be marketing, or batch version, land of origin? does anyone knows, i just only get that they need to be the same too. intel server chipsets as these 602 or what ever are particular and very demanding on what they run or not. 

 

 engineering samples are the thing i never get, they just supply them to partners, needing some kind of solutions other then just of the shelf solutions. Many run engineering samples or need custom Dell bios to do so. What intel is doing here not clear to me, many X99 don't support them, some do....what are they, just custom non reference chips i guess...????

[QuadaconV2]

25 minutes ago, LucasRem said:

Sending you a dead link is not helping you, 

https://www.intel.com/content/www/us/en/support/processors/000007490.html?wapkw=sspec

Thanks! Used the link you sent, turns out my current CPU is the correct and matching S-Spec