MacPro Early 08 CPU upgrade

[CaptainChunk]

I have an early '08 Mac Pro that came with one E5462 2.8GHz Xeon processor. I would like to upgrade the processors as much as possible.

As far as I can tell from my own research as well as the information on this thread, the best processors I can put in the machine are the Xeon X5482 3.2GHz chips.

I found a pair of them on eBay, but the seller says the steppings are "E 0 steppings". The seller describes the chips as "Intel Xeon Quad Core X5482 E S"... which sounds like they were Engineering Samples... I'm okay with that, but what about the "E 0" steppings? Will they work in the Mac Pro?

Thanks so much if anybody can answer this!

Your question is already answered earlier in this thread. 2008s won't work with CPUs that have E0 steppings, period. Only CPUs with C0 steppings work.

 

[vicentk]

But after I read that site ( http://www.applecomponents.com/computers/mac-pro-early-2008/?p=all_items&pn=1&cmp=0098&per_page=30 ) , it seem the logic board is different, I'm afraid my 2.8 board the power supply parts is not enough.

 

[Spacedust]

But after I read that site ( http://www.applecomponents.com/computers/mac-pro-early-2008/?p=all_items&pn=1&cmp=0098&per_page=30 ) , it seem the logic board is different, I'm afraid my 2.8 board the power supply parts is not enough.

It will work. Check hexus.net article: http://www.hexus.net/content/item.php?item=11938&page=1

 

[vicentk]

It will work. Check hexus.net article: http://www.hexus.net/content/item.php?item=11938&page=1

thank you, after I read this post I feel relieved.

 

[Spacedust]

thank you, after I read this post I feel relieved.

Don't buy X5482, because your CPU's will take 2x130W power. I've replaced my E5462's with E5472's and I still got 2x80W.

 

[Atomic101]

I have been looking at this upgrade myself. I run my Xeon 2.8 at 3.15 Ghz & would like to run the new processors at 3.55 as I use mine for rendering -do any of you know if the Heatsinks from a 2.8 will take it ?

Thanks andy

 

[sixseven]

3.1

can this cpu be running in Mac Pro 3.1 / 2008 / Serial ID CK811115XYL?

http://ark.intel.com/products/34446/Intel-Xeon-Processor-X5450-(12M-Cache-3_00-GHz-1333-MHz-FSB)

 

[nanofrog]

can this cpu be running in Mac Pro 3.1 / 2008 / Serial ID CK811115XYL?

http://ark.intel.com/products/34446/Intel-Xeon-Processor-X5450-(12M-Cache-3_00-GHz-1333-MHz-FSB)

If you find one with a SLASB code, then Yes (means C0 stepping).

There is another, SLBBE, which uses an E0 stepping which will not work (BTW, both codes are production releases, not Engineering Samples which you'd be best to avoid - those start with a Q).

But I have to ask... Why use that particular CPUID?