Matching CPU's MP 4,1 Yes or No?

[ade90054]

Hi all,

So I've searched the forums here for this subject and the results I've found seem to vary somewhat.
I've got a dual cpu MP 4,1 that I want to perform the well documented upgrade on. I've also got a single x5690 cpu, can someone tell me unequivocally that I could by a second non-matched x5690 and it work? Has anyone on here done this and succeeded?

Any help much appreciated,

Thanks,

J.

 

[h9826790]

Unless you bought an Engineer Sample. AFAIK, all official X5690 has same stepping, so they are all matched.

 

[ade90054]

Yeah it's definitely not a sample, it seems the overall consensus is that it should be fine to grab another single cpu as long as it's the same model and like you say not a sample.

 

[prvt.donut]

Do it! It will be fine

 

[flowrider]

Yeah it's definitely not a sample, it seems the overall consensus is that it should be fine to grab another single cpu as long as it's the same model and like you say not a sample.

It's really not a consensus, it's a fact. I have X5677 CPUs in my 5,1. The first "set" I received had a CPU with a bad memory channel. The seller took it back and replaced it, problem solved.

Lou

 

[AidenShaw]

Unless you bought an Engineer Sample. AFAIK, all official X5690 has same stepping, so they are all matched.

While I agree with the posts that there is no special matching of CPUs, I would worry about running a dual socket system with CPUs of different steppings.

"Steppings" are the silicon equivalent of "revisions". Two processors of the same model # but with different steppings are not identical.

When processes are swapped between processors, a lot of state has to move with them. If the processors are different steppings, unfortunate things could happen.

So, don't worry about matched pairs - but get the same steppings.

And, BTW, most dual socket x64 servers are available with a single CPU, and are field upgradeable to dual socket.

 

[raymanster]

I bought my two x5677 cpus from different suppliers and seems to work fine for last 2-3 months.

 

[DanSilov]

Another confirmation here, bought two X5680's from different vendors, work absolutely fine.