• We’re currently investigating an issue related to the forum theme and styling that is impacting page layout and visual formatting. The problem has been identified, and we are actively working on a resolution. There is no impact to user data or functionality, this is strictly a front-end display issue. We’ll post an update once the fix has been deployed. Thanks for your patience while we get this sorted.

do I need CPUs with matching S-codes for SMP or is the cpuid enough?

S

spyordie007

Diamond Member
I'm looking to add a 2nd P3 1.13ghz/512k CPU to one of my servers. I havent pulled the existing one yet to review the stepping however I have verified what it is with cupid.

Looking at Intel's specs on the P3s it looks like there are 3 differant steppings for the 1.13s with 512k; all of them have the same cpuid:
http://www.intel.com/design/PentiumIII/qit/update.pdf
(SL5PU, SL5LV and SL5LV)

My question is if anyone knows if I have to find another one with matched stepping or if I find another one of the 2 if they will work together SMP. These are getting harder to find so it would be much easier if I could grab any of the 3 rather than finding an exact stepping match.

Thanks in advance,
Erik
 
Intel has always reccomended using matching steppings on dual CPU setups. I've used different steppings on dual setups before and it has been fine. One thing to note in the pdf you referenced, the SL codes are different, but the stepping codes are the same, so they should all theoretically work together.

One note, I may be wrong here, but I thought that the only tualatin CPUs that work in dual mode are the tualatin-S cpus. But maybe all 512k cache versions were S.
 
They should all work as long as they are the same family, as far as I know.
According to Intel, you can mix and match all sorts of speeds and cache sizes, but the two will run at the lower speed.
 
You must log in or register to reply here.

TRENDING THREADS

Back
Top